Windows 7 not connecting to WEP wireless


I've been having trouble connecting to a wireless internet connection with my Lenovo laptop running Windows 7. After clicking "Connect", it doesn't ask for the WEP key and gives me the "Unable to connect" message. The troubleshoot details say that it sent 2 or 3 packets but received 0. I have updated the appropriate drivers from I then attempted to manually enter the network settings with the Network and Sharing center (entered the name, selected WEP and put in the key) but I got the same result as before. My second laptop (running Windows XP Service Pack 3) asks for the WEP key and is able to connect to the same network just fine.


Hi Bob,


Thank you for posting your question in the Microsoft Community.


Sorry to know that you are facing trouble connecting to a wireless internet connection on the Lenovo laptop.

It would be helpful if you could reply to this question to assist you further.

What is the complete message you are receiving when running the diagnostics?


Let’s try the following steps and check if it helps.

Method 1:

Disable the firewall/ anti-virus temporarily installed on your computer and then check if the issue still persists. If the issue resolves, then you might need to uninstall the software and reinstall it back or change the settings.

Note: Make sure to enable the security software on the computer after checking for the issue.


Method 2:

You may try to uninstall and reinstall the network adapter and check if it helps:

a. Click Start and type in Device Manager in the Start Search and Press Enter.

b. Expand the Network Adapters in the Device Manager

c. Right click on the device and click on Properties.

d. Click on driver tab and click on Uninstall Drivers and click OK.

e. Restart the computer.

You may also refer the Lenovo Support link and try installing the latest version of wireless card drivers.

For further information, refer the link:

Update a driver for hardware that isn't working properly


Method 3:

You may also refer the article and try to reset TCP/IP settings.

How to reset Internet Protocol (TCP/IP)


Method 4:

Try re-building the wireless connection using the settings and steps mentioned from the article:

Setting up a wireless network

Also refer the articles:

Set up a security key for a wireless network

Set up a wireless router

View and connect to available wireless networks  


You may also follow the troubleshooting steps listed in the article and check if that helps:

Troubleshoot problems finding wireless networks (Holds good for windows 7);


Hope this helps to fix the issue.


If you need further assistance, please reply and we will be happy to help you.

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Question Info

Last updated March 23, 2018 Views 1,140 Applies to: