Unable to connect WiFi.. Qualcomm Atheros AR9485WB-EG windows 7 problem

Hello Mandar,

Thank you for posting your query in Microsoft Community Forum. I appreciate your effort towards resolving the issue.

Did you make any significant hardware or software changes to the computer prior to this issue?

The issue may arise due to various reasons including incorrect TCP/IP settings configured, third party firewalls from anti-virus programs blocking the connection or due to incorrect advanced sharing settings. So, I would suggest you to try the following methods and check if you the system is able to detect the wireless network.

Method 1:

First of all, please verify if the WLAN service is started and set to automatic. If it is stopped, then I would suggest you to start the service and set it to Automatic.

1. Click on Start, type in services.msc in the Start search and hit ENTER.
2. Select WLAN Autoconfig service from the list, and double-click on it.
3. Change the startup type to Automatic and click Start to start the service.
4. Click Apply and then click OK.
5. Restart the computer and check if the network is detected. If not, proceed to Method 2.

Method 2:

Reset DNS and TCP/IP settings.

1. Click the Start button, click All programs, and click Accessories.
2. Right-click Command Prompt, and click Run as administrator. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
3. Please enter the following commands, and press enter after each one.

NETSH INT IP RESET

IPCONFIG /FLUSHDNS 4. Restart the computer to check the issue.

Check if the system is able to detect the network. If not, proceed to Method 3.

Method 3:

Assign a static Gateway as provided by your Service Provider.

1. Click on Start, type in ncpa.cpl in the Start search and hit ENTER.
2. Right-click the network connection (Local Area Connection) and click Properties.
3. Click to highlight "I **nternet Protocol Version 4 (TCP/IPv4)**and click Properties.
4. Point Use the following IP address. According to your router’s settings, fill in the IP address, Subnet mask and Default gateway (as provided by your Service Provider).
5. Click OK.

If this method does not help, try the next method.

Method 4:

Remove all wireless networks listed in the Network and Sharing Center.

1. Click Start and select Control Panel.
2. Open Network and Sharing Center.
3. Click Manage Wireless Networks.
4. Remove all wireless network listed in this list.
5. Restart computer.

Select your wireless network and connect (if secure, input your password). Check if you see yellow color exclamation on wireless connection strength bar.

Also check: **Setting up a wireless network**

If you still face the issue, proceed to the next Method.

Method 5:

Disable the security software temporarily and check if it helps.

Disable antivirus software

http://windows.microsoft.com/en-us/windows/disable-antivirus-software#1TC=windows-7

Note: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you should not disable your antivirus software. If you do have to temporarily disable it to install other software, you should re-enable it as soon as you're done. If you are connected to the Internet or a network during the time your antivirus software is disabled, your computer is vulnerable to attacks.

Additional information:

Wired and wireless network connection problems in Windows

http://windows.microsoft.com/en-US/windows/help/wired-and-wireless-network-connection-problems-in-windows

Hope this information is helpful. If the issue still persists, please post back for further assistance, we'll be glad to assist you.