Hardware questions and answers

Step 1

Turn on your wireless adapter. Most modern laptops come with internal wireless adapters that receive WiFi signals. External adapters are also available. Make sure that if your adapter has an "On/Off" switch, it is turned to "On." Step 2

Find a wireless hot-spot. If you are home and have a wireless network setup, your adapter should pick up the signal. If not, try going to a coffee shop or other advertised spot where wireless networks are accessible. Step 3

Navigate to "Control Panel > Network Connections > Wireless Networks" and check the wireless networks that are available by right-clicking on "Wireless Networks" and selecting "View Available Wireless Networks". Step 4

Select the wireless network you want to connect to and click "Connect". If the network is password protected, you will be prompted to type in the password. Step 5

Check the connection by opening your web browser and navigating to a popular website. If it loads, your laptop WiFi connection is working correctly.

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1) Since your browser says its detecting proxy settings, I guess its due to some proxy setting configured in your browser. Check that browser is set to connect to internet directly.

2) Secondly, check that mac-filter of your wifi router has your laptop's mac-address, or it will block all the internet access.

3) Thirdly, check that you have not configured a static IP, and have set your router to provide dynamic IP address, it might be that your wifi router DHCP might be turned off and if it is not, your laptop is configured with static IP address.

4) Lastly, this is the least possibility, but sometimes when our firewall detects a new connection, we block it by mistake. So change SSID of your router and DHCP address allocating range in it, like if it was from 192.168.1.1, change it to 172.16.1.1 This will change your connection type and then your firewall will prompt you again, you can then allow the network to access the internet.

Hope this has been informative for you and solves your problem.

Regards

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Wi-Fi is the industry name for wireless LAN (WLAN)communication technology related to IEEE 802.11 family of wireless networking standards.To some,term Wi-Fi is synonymous with 802.11b,as 802.11b was the first standard in that family to enjoy widespread popularity. Today,however,Wi-Fi can refer to any of established standards:802.11a,802.11b,802.11g and 802.11n.The Wi-Fi Alliance certifies vendor products to ensure 802.11 products on the market follow the various 802.11 specifications. Unfortunately,802.11a technology is not compatible with 802.11b/g/n,so WiFi product lines have been somewhat fragmented.

The building blocks of a wireless LAN are network adapters,access points,wireless routers,add-on wireless antennas & signal boosters.Of these,only network adapters are truly required to build a wireless home network. However,many wireless LANs also utilize some of the other equipment,as explained below.

Wireless Network Adapters: Each computer u wish to connect to a WLAN must possess a wireless network adapter.Wireless adapters are sometimes also called NICs,short for Network Interface Cards.Wireless adapters for desktop computers are often small PCI cards or sometimes card-like USB adapters.Wireless adapters for notebook computers resemble a thick credit card.Nowadays,though,an increasing number of wireless adapters are not cards but rather small chips embedded inside notebook or handheld computers.Wireless7 network adapters contain a radio transmitter receiver(transceiver). Wireless transceivers send & receive messages, translating,formatting,generally organizing the flow of information between computer & the network.Determining how many wireless network adapters you need to buy is the first critical step in building ur home network.Check the technical specifications of ur computers if u r unsure whether they contain built-in wireless adapter chips.

Wireless Access Points:A wireless access point serves as central WLAN communication station.In fact,they are sometimes called "base stations." Access points are thin,lightweight boxes with a series of LED lights on face.Many access point products are available in market.

Wireless routers are a good choice for those building their first home network.

Wireless Antennas:Wireless network adapters, access points,& routers all utilize an antenna to assist in receiving signals on WLAN.Some wireless antennas,like those on adapters,are internal to the unit.Other antennas,like those on many access points,are externally visible.

Wireless Signal Boosters:Both antennas & signal boosters can be a useful addition to some home networks after the basics are in place.

Installing a Wireless Router: One wireless router supports one WLAN.Use a wireless router on ur network if u are building ur first home network,or u want to re-build ur home network to be all-wireless,or u want to keep ur WLAN installation as simple as possible Try to install ur wireless router in a central location within the home.The way Wi-Fi networking works,computers closer to the router (generally in the same room or in "line of sight")realize better network speed than computers further away.Connect the wireless router to a power outlet & optionally to a source of Internet connectivity. All wireless routers support broadband modems, and some support phone line connections to dial-up Internet service.If u need dial-up support, be sure to purchase a router having an RS-232 serial port.Finally,because wireless routers contain a built-in access point,ur also free to connect a wired router,switch,or hub.Next,choose your network name.In Wi-Fi networking,network name is often called the SSID.ur router and all computers on the WLAN must share the same SSID. Although ur router shipped with a default name set by the manufacturer,it's best to change it for security reasons.Consult product documentation to find the network name for ur particular wireless router,& follow this general advice for setting ur SSID.Last,follow router documentation to enable WEP security,turn on firewall features,& set any other recommended parameters.

Configuring the Wireless Adapters: Configure ur adapters after setting up the wireless router or access poin(if u have one). Insert the adapters into ur computers as explained in ur product documentation.WiFi adapters require TCP/IP be installed on the host computer.Manufacturers each provide configuration utilities for their adapters.On the Windows operating system,for ex,adapters generally have their own graphic user interface(GUI)accessible from the Start Menu or taskbar after the hardware is installed.Here's where u set the network name(SSID)& turn on WEP.u can also set a few other parameters as described in the next section.Remember,all of ur wireless adapters must use the same parameter settings for ur WLAN to function properly.

Configuring an Ad-Hoc Home WLAN:Every Wi-Fi adapter requires u to choose between infrastructure mode(called "access point" mode in some configuration tools)& ad-hoc(peer_peer)mode.When using a wireless access point or router,set every wireless adapter for infrastructure mode.In this mode,wireless adapters automatically detect & set their WLAN channel number to match the access point(router).Alternatively,set all wireless adapters to use ad hoc mode.When u enable this mode,u'll see a separate setting for channel number.All adapters on ur ad hoc wireless LAN need matching channel numbers.

Wireless Routers/Access Point Interference within the Home:When installing an 802.11b or 802.11g access point or router,beware of signal interference from other home appliances.In particular,do not install the unit within 3-10 feet(about 1-3 m) from a microwave oven.Other common sources of wireless interference are 2.4GHz cordless phones,baby monitors,garage door openers,& some home automation devices.If u live in a home with brick or plaster walls,or one with metal framing,ur may encounter difficulty maintaining a strong WLAN signal.WiFi is designed to support signal range upto 300 feet(about 100m),but barriers reduce this range substantially.All 802.11 communications(802.11a most of all)are affected by obstructions.

see also the attachment i have given.

wifi.doc (31.744k)

Recently i faced similar problem. In general home connection are very secure than public. SO they may detect trojans, tracking cookies or malware etc... which even if you are connected to internet doesnot allow to open websites( I had problem opening microsoft websites, other sites were opening just microsoft). Install AVG anti spyware scan your system. and try now

If this dosent help try one of these... I tried these before and they worked.

1. For XP the solution is very easy. Open Wireless Network Connection properties, go to the wireless networks tab and delete all Access Points detected before from the preferred networks box. OK and try reconnecting again.

2. If the above doesn't work go to control panel select windows fire wall turn it off now try to connect.

3. Try updating the wireless device software. Or if you have updated it recently try rolling back device.

4. Or just check out are your blue tooth and the WLAN both being ON, causes interference. Turn off the WLAN.

5. Are you using WEP encryption? The conversion from ASCII to Hex is not good and will create interpretation by various manufactures. So better switch it off and try.

If all this doesnt work restore your notebook to the point when you have purchased(dont forget to write your important data on a dvd). try now.

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You are missing some settings on your laptop or its misconfigured. try going to the network settings and making sure the laptop is configured to connect to the internet directly and not through a proxy.

Please also specify the model of your modem, this would help me in telling you which setting could have the problem.

Have you tried connecting to the same modem through an ethernet cable? If yes and if you were able to connect to the internet from the same laptop through the same modem then the only problem could be the proxy settings for you wifi on the laptop..

try copying the same settings from your other systems to the laptop.. this could work too.

Try not using a proxy setting at all. A misconfigured port or a closed port is most probably the reason for you to be not able to connect to the internet.

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Try troubleshooting your wifi settings on your laptop. For this you may need to configure the IP address of your wifi connection so that it corresponds to your home wifi. If it doesn't work, I suggest you have new Windows installation done and the try or find the newest drivers for your laptop's wifi. Hope this should fix the problem. Happy surfing.

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I went to the sony support website. There they have some instructions about how to troubleshoot a wireless LAN connection issue.

What it worked for me was to Reinstall the original wireless adapter driver. Uninstall the driver from device manager and reinstall it from the VAIO Recovery software. Here you have the instructions:

Follow this procedure to remove a device from Device Manager. 1. Click the Start button and then click Control Panel . 2. In the Control Panel window, click System and Maintenance . 3. In the System and Maintenance window, click Device Manager . NOTE: If prompted for an administrator password or a User Account Control prompt is displayed, type the appropriate password or click Continue . 4. In the Device Manager window, double-click the category icon of the device to be removed. 5. Under the Device Manager category , click to select the device to be removed. 6. On the menu bar , click Action . 7. On the Action menu, click Uninstall . 8. In the Confirm Device Uninstall window, click the OK button. 9. In the Device Manager window, click the X in the upper right corner to close the window. NOTES: o When the computer restarts, the operating system will find the device and install the driver. o If the operating system is unable to automatically find the driver, download and install the desired driver from the Sony® eSupport Web site at Sony eSupport - Electronics.

I did that, and after restarting the computer, the driver auto-installed and everything was ok!

Hope that helps!

www.sony.com… ptf.com/sony/sony+vaio+pcg+7d2l+drivers+wireless+download/

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hope this helps...

Try Disabling your FireWall and See.

I Too had Same problem so i simple diable my Firewall of my Antivirues and Use Wifi of my Laptop

or

The following solution is a basic generic description and will vary dependent on your current set up on your router:

Identify your MAC address on your wireless card - go to the wireless card properties and under the MAC address settings (generally found under General) note this down.

Check that the driver being used for the wireless card is the most up to date (the driver date will be on the properties tab) and then visit http://redirectingat.com/?id=42X106…

for the most recent driver date and download this and install it.

Next download from the Intel web site the wireless management software

Intel® PRO/Wireless 3945ABG Network ConnectionÂ*Intel® PROSet/Wireless Network Connection Software [WIRELESS_TIC_131935_V10.5.2.0_XP32.EXE]

This software will replace Windows management software for the wireless connection. Download and install this software.

Now use the software to access your router. Under the router maintenance / set up screen (I am not sure what this will look like for everyones routers) go to the MAC filtering rule and type in the MAC address for your wireless card. FYI just make sure this hasnt changed on installation of the new driver!!

Make sure you have MAC filtering then enabled.

Next check that the following is set up on the router:

DHCP server is on and enabled (this will automatically assign IPs) Also make sure the IP address pool is big and not just for one computer - your IP address pool should be from something like 198.128.2.1 (or slight variant on that - the most important bit is the last number) - to something 198.128.2.100 - this means it will assign IPs to 100 computers.

Check that the properties for the wireless card (back on the PC) are also set for DHCP.

Delete any old wireless listings on the network listing - this will have old info on WEP/WPA keys - you can delete (REMOVE) a wireless network from your list of preferred networks.

Running the INTEL software to access the wireless router should now be working fine and connect and add in the WEP/WPA key. May I suggest using WPA-PSK as it works better and is more secure.

Ok well I hope that helps some of you - apologies if it doesn't. Key thing is that Windows cant seem to manage the INTEL card correctly under security over wireless.

All the best!

or

One of the most best features of windows Xp is its native support for wireless connectivity based on the Wi-Fi standard. But this feature is far more powerful than simple device detection. Instead, XP clients also automatically detect any nearby wireless networks. XP also automatically connects to the fastest possible network connection. Say you've got a wirelessly enabled laptop that also features a standard 100mbps etherent port for wired network connectivity. If both connections are active-that is, the wired network is plugged in, and the wireless network connection has detected a wireless network to which it has access rights-XP automatically uses the faster, wired network. Likewise, if you have a choice of wireless networks-mpre typical in an office situation, naturally-then XP picks the wireless network with the best connectivity. At home, XP wont generally have multiple wireless networks from which to choose. However, XP will be sure to use whatever bandwidth is currently available. Go to see what wireless networks are available by locating the wireless network connection icon, right click it, and choose View Avialable Networks. The displays the wireless Network connection utility. (This is a nice new feature for SP2 Users). What you see here depends largely on your setup, but you should see at least one wireless network listed under Choose a wireless network, and it should match the wireless network you recently set up (it is hoped that you changed the default name of the network so that it isn't listed as default, linksys, etc.

Once you are connected after the computer is done connecting, you should be asked to put a network key in. IF NOT, your network is unprotected. THE SHAME! The Network key is either the WEP or the WPA pass phrase you picked during setup. Then when your done typing in your network key twice hit connect. If you did it right you will be connected! Good Job!

Try this link

http://forum.notebookreview.com/sho…

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The main Internet applications are described in the chapters accessible through the home page, while this chapter describes the underlying Internet network itself. The following sections provide more information:

* Internet History

o Internet History -- One-Page Summary o Vannevar Bush and Memex o Norbert Wiener Invents Cybernetics o Semi-Automatic Ground Environment (SAGE) o Dartmouth Artificial Intelligence (AI) Conference o DARPA/ARPA -- Defense / Advanced Research Project Agency o J.C.R. Licklider And The Universal Network o Marshall McLuhan Foresees The Global Village o Paul Baran Invents Packet Switching o UK National Physical Laboratory (NPL) & Donald Davies o IPTO -- Information Processing Techniques Office o Leonard Kleinrock Helps Build The ARPANET o Lawrence Roberts Manages The ARPANET Program o IMP -- Interface Message Processor o ARPANET -- The First Internet o NCP -- Network Control Program o Robert Kahn -- TCP/IP Co-Designer o Vinton Cerf -- TCP/IP Co-Designer o TCP/IP Internet Protocol o CSNET -- Computer Science Network o NSFNET -- National Science Foundation Network o EUnet -- European Network

* How The Internet Works

o Internet Management

+ ISOC -- Internet Society + IAB -- Internet Architecture Board + IETF -- Internet Engineering Task Force + IRTF -- Internet Research Task Force + ICANN -- Internet Corporation For Assigned Names And Numbers + IANA -- Internet Assigned Numbers Authority + NSI -- Network Solutions + Accredited Domain Name Registrars + NSF -- National Science Foundation

o Internet Architecture o Internet Protocol (IP) Addresses o Domain Name System (DNS)

+ DNS History + Domain Names + Domain Name Servers + Domain Name Aliases + More DNS Information

o Packet Switching

+ Packet Switching History + How Packets Work + How Switching Works

o Internet Routing

+ Internet Routers + Interior Gateway Protocols (IGP)

# Routing Information Protocol (RIP) # Open Shortest Path First (OSPF) # Interior Gateway Routing Protocol (IGRP)

+ Exterior Gateway Protocols (EGP)

# Border Gateway Protocol (BGP) # Exterior Gateway Protocol (EGP)

o Unix Operating System

+ Unix History + C Programming Language History + Unix Wars + Linux History + More Unix Information

o Ethernet Networking

* Internet Use

o Internet Use o World Wide Web Use o Usenet Newsgroups Use o Email Use o Mailing List Use o Internet Relay Chat (IRC) Use o Multi-User Dungeon (MUD) Use

* Advanced Internet Use

o Netiquette (Internet Etiquette)

+ Netiquette Basics + Netiquette Of Sending + Netiquette Of Replying + Netiquette Of Confidentiality + More Netiquette Information

o Internet Request For Comments (RFC's)

+ RFC History + How To Use RFC's + Internet Protocol RFC's + Internet Official Protocol Standards RFC's + Entertaining RFC's + Interesting RFC's + RFC's By Email + Related RFC References

o Internet Tools & Resources

+ Internet Network Topology + WHOIS Database + Ping Command + Traceroute Command + NSLOOKUP Command + Internet Traffic Statistics

o Text On The Internet

+ Adding Emphasis To Text + Emoticons & Smileys + Text Abbreviations + Text Actions + ASCII Art

o Internet Legends & Myths

+ Internet Coke Machine + The Modem Tax + Internet Toaster + Neiman-Marcus Cookie Recipe + Craig Shergold's Postcards + Jessica Chain Email Hoax + Cruise Control In The Rain

o Internet Hackers, Crackers, Hacking

+ Richard Stallman + John Draper + Mark Abene + Kevin Mitnick + Kevin Poulsen + Vladimir Levin + Hacker Sites

o How To Get An Internet Domain o The Future Of The Internet

* Key Internet Features

o Geographic Distribution o Robust Internet Architecture o Internet At Near Light Speed o Universal Internet Access o Internet Growth Rates o The Internet's Digital Advantage o Internet Freedom Of Speech

* Internet Security

o Internet Confidentiality & Privacy o Internet Anonymizers

+ How Anonymizers Work + Anonymizer Use + Anonymizer Limitations + Anonymizer Sites & Services

o Internet Remailers o Internet Encryption

+ Public Key Cryptography (PKC)

# PKC History # How PKC Works # More PKC Information

+ Pretty Good Privacy (PGP) + Digital Signatures + Key Recovery Systems

o Internet Viruses

+ Boot & Program Viruses + Script & Macro Viruses + Internet Worms + Virus Protection + Virus Hoaxes + More Virus Information

o Password Selection o Internet Security Resources

* Internet Help

o Frequently Asked Questions (FAQ's)

+ FAQ History + FAQ Archives + Create Your Own FAQ

o Internet Terminology o Starting Over o Internet Connection & Disc

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IMCPL has added Wireless Local Area Network (WLAN) points to allow patrons the opportunity to connect to the internet using their own equipment in the library. Wireless access points are available at all IMCPL Locations.

For wireless internet access, your laptop must have 802.11b- or 802.11g-compliant wireless capability, a charged battery and/or a power cord, and an internet browser such as Internet Explorer.

Please note that this service is offered as a courtesy to patrons who have their own equipment.

Because of the vast array of wireless cards on the market, library staff will not be able to answer technical questions about your specific card configuration. The Library cannot guarantee that your equipment will work with the library's network and is not responsible for any changes you make to your computer's settings.

Connecting to the Wireless Network Follow these steps to connect to the internet through the IMCPL Wireless Network:

1.Plug in your laptop's power cord (if needed) 2.If your laptop does not have built-in wireless capability, insert your wireless card 3.Power on your laptop 4.Open your web browser In most cases you will not need to change the settings on your laptop to connect. However, if you are unable to connect immediately, see the tips listed under the Trouble Connecting section.

Please note that: The library's wireless network is not secure and information sent from or to your laptop could be captured by anyone else with a wireless device and the appropriate software.

We recommend your laptop have the latest operating system service packs and anti-virus software before connecting to the internet.

The tips provided in this brochure assume a laptop running Windows 2000/XP or Mac OS X is being used.

Trouble Connecting? Check that your wireless connection is enabled and that it has a strong connection to the WLAN access point. Enable the connection if needed. If the signal is poor, try moving to another location in the library to improve signal strength and quality. Check your wireless card configuration. The network name (SSID) that your laptop should connect to at IMCPL is public.

Check your wireless card properties and ensure the card is active and pointing to an available network called public. WEP encryption should be disabled. The mode or network type should be "infrastructure mode" or "access point." Check your laptop's network TCP/IP settings. In Windows 2000/XP, these settings can generally be accessed from the Control Panel under Network and/or Internet Connections > Wireless Network Connection. Find the properties for TCP/IP and ensure that Obtain an IP address automatically and Obtain a DNS server automatically are selected.

If using Mac OS X, go to the Apple menu and click System Preferences > Network. Find the TCP/IP settings. Configure IPv4 should be Using DHCP. Leave the DNS Servers and Search Domains boxes blank. Check that your laptop has a valid IP address for the public network (192.168.x.x or 10.4.x.x). To verify the IP address using Windows 2000/XP: •Click Start > Run •Type cmd and press Enter •Type ipconfig and press Enter •The IP address will appear The IP address should be 192.168.x.x or 10.4.x.x. If the IP address is different, try to reestablish a network connection: •Type ipconfig /release •Press Enter •Type ipconfig /renew •Press Enter •The correct IP address should appear The IP address should be 192.168.x.x or 10.4.x.x. For Mac OS X users: From the Apple menu click System Preferences > Network > TCP/IP. If there are no numbers next to the IP address, subnet mask, and router or the IP address is not 192.168.x.x or 10.4.x.x, check the DHCP settings and verify that the SSID is public. You could also try clicking Renew DHCP Lease in Network Preferences. Ensure your browser is not set to run through a proxy. For example, the proxy settings in Internet Explorer are under Tools > Internet Options > Connections > LAN Settings.

If using Mac OS X, go to the Apple menu and click System Preferences > Network > Proxies. Ensure your browser is not configured to use a dial-up connection. If it is, you will need to change your network or browser settings. What about printing? Wireless printing is available for machines running Windows 2000/XP and Vista 32 bit. For more information, visit the IMCPL printing page at http://www.imcpl.org/printing….

Printing is not available via a wireless connection on any other systems. If you need to print, save the file to a floppy or USB device and use one of our public PCs to print. If you were still unable to connect after trying these suggestions, you may need to contact the manufacturers of your hardware or software for assistance.

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Uncheck the box - use a proxy server for your lan.

or use the proxy setting provided by your ISP.

Thanks,

Arsh

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If you are still getting it , then try this .

For Win XP SP3 or before : 1.Go to Start - > Control Panel - > Network 2. Choose WLAN and go to its Properties tab. 3. Go to TCP/IP tab -> Properties 4.Check the "Select Obtain IP address automatically" box . 5.Apply and then Save.

For Win Vista : 1.Start - > Control Panel - > Network and Sharing Center. 2.In the Tasks panel on your left , select Manage Wireless Network. 3.Choose teh Network You are onto and right click and then go to Properties Tab. 4. It will show your Concerned Network Properties. 5. Check the " Connect Automatically when this Network is in range" box and "Connect to a more preferred network if available" box 6.Click OK.

That's it. Your Wireless Connection should be up and running and you should be able to browse the net. Try Restarting for a safer bet. ( Though I din't do that).

Hope this works for you too.

Cheers.

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Good Luck!

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You told your browser says "detecting proxy settings", then your browser might have set to some proxy settings, you can find them in properties/options->network-> there you can find the proxy settings or in some browsers it will be there in properties/options->network->advanced location. You can uncheck the check boxes. If you do this then your browser will work fine. Make sure that you didn't installed proxyfier or any proxy softwares.

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So please check up the instrument whether it is ok.

If that is ok there can be one more reason also. Go to internet protocol and feed numbers properly by getting them from ur internet provider and give alternative numbers also. This must work.

best wishes/

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If still it is not working then please read this tutorial: Using WinXP in this tutorial, we'll go through the steps for setting up a laptop to access a Wi-Fi network. Some Wi-Fi cards can be set to automatically detect and connect to Wi-Fi networks. It is still important to know how to manually set up your Wi-Fi card to connect to a Wi-Fi network. Before you attempt to use any Wi-Fi network, find out what the SSID, Channel, Mode and WEP key are. Some Wi-Fi locations do not require a WEP key. Many Wi-Fi providers have this information on their web site or when you purchase access you will be provided the information. Ensure you have a firewall program installed and running. This will protect your data. Start up your laptop and once booted, look for the Wi-Fi network icon in the bottom right of the screen. Click on the Wifi Connection icon on bottom right of screen and you should see a window that indicates connection, strength and duration. Click on the Properties tab. This window shows the type of networking card installed. Click on the Wireless Networks tab. Once the Wireless Network Connection Properties window is open you will have two options depending on how you set up your laptop. If you do not see any networks listed in Preferred or Available networks, you will have to manually add the SSID. Click on Add. You will have to enter the SSID and WEP key (if required). Click OK and you should then see the network you just added in the Available networks box. If you see the correct SSID showing in the Available Networks, then you need to click on Configure in order to enter the WEP key if that is required. In this window, enter the SSID for the Wi-Fi network you want to access. Make sure you do not have CAPS lock or NUM lock while entering the information. If a Network key is required, click on "Data Encryption and then enter the Network key you have been provided with. Again make sure you do not have CAPS or NUM lock on. Click OK when entered. If you have entered the key incorrectly a message will pop up and you will need to re-enter the key. Next go to Start - and where it says Connect To click on that and you should see choices like in the graphic below. Click on Wireless Network Connection and it should work. Potential Problems & Their Solutions:

There are occasions when the connection doesn't work, in these cases check your firewall software and make sure it allows you to connect to the Wi-Fi network. To check this, disable your firewall software and check the connection again. If you can connect with the firewall program disabled, you will need to change your firewall settings. If your firewall program is not the problem check the SSID and WEP key information that you entered. Both of these are case sensitive. If you had obtained SSID information from the Internet, check with someone in the establishment to see if the SSID has been changed. http://mobileoffice.about.com/od/fi…

If still you are unable to fix the problem then uninstall your wifi adapter and reinstall it, may be it has become corrupt.

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