Installed Windows 7 Pro 64bit (Custom) and had to Upgrade afterward in order for it to work, according to Microsoft. After installation, I installed the latest drivers for my build from the manufacturers' websites first and everything worked seamlessly, until 3 days ago. My internet worked, then Monday morning, afer a 2wks working, my internet reported it was not connected. I uninstalled the adapter and drivers and re-installed with no luck. Using my laptop and after spending countless hours on the phone with motherboard tech (Gigabyte), I opted to purchase a wireless internet USB adapter (Linksys). Still no luck. Spent hours on the phone with them as well. The adapter connects to the router, but no IP address. I can connect to the router using the web browser, but no internet access. I can connect from both my connections on my laptop, using Windows XP, but Windows 7 seems to have blocked any other connections??? Products used: Gigabyte MA790XT-UD4P w/Realtek 8168/8111 Driver 7.6.820.2009Linksys Wireless: WUSB600N Neither will get an IP address and I manually put an IP address and DNS servers, still with no luck. Correction, I installed the Realtek Ethernet Diagnostic Utility and it reports I have an IP address of 192.168.1.103 and I can connect to the router from both the wired and wireless connections, although the wireless says Not Connected wit either the IPv4 or IPv6Connectivity. This leadsme to believe it is an issue with Windows 7... I even tried to create a new connection using Network and Sharing Center, but it seems locked into whatever it is looking for... I rolled back system settings to Sunday night when it was working as well and still nothing. What else can I do? Does anyone now what else I can do? Thanks for your time! Courtney C

Here is another thing I forgot to mention... Under Troubleshoot problems - Network and Internet, it doesn't find errors with Internet Connections, but HomeGroup tells me to do Windows Network Diagnostic, which find an error with PMRPsvc or p2pimsvc and doesn't fix the problem. HomeGroup doesn't detect any problems though.I followed instruction from Novack Wu under another thread, but still no luck... http://social.technet.microsoft.com/Forums/en-US/w7itpronetworking/thread/4273ac09-5d7f-4e39-8919-6302c1c398d0Tried a couple other posts from him as well with no luck...

If you are capable to connect to the Router menus with valid IP it means that you have a valid network connection and that your hardware and core OS are working OK. The regular Internet is IPv4 based and does not need IPv6 to work. That leads to. 1. Some thing in the Browsing Software aspect is Not working correctly. 2. Something is wrong with the Modem, or Router, or both Log to the Router's menu and look at the WAN (Internet side) of the Router. If the Router have a valid Internet connection there would be there External IP, and or, other variables that indicate that the Router is indeed connected to a valid Interent connection.

Thanks for the reply Jack! I have to say it has to be a HomeGroup issue though, because the old router worked with my old Vista Desktop, Windows 7 Pro 64bitand current XP laptop, but the Windows 7 just stopped working Monday morning after working for 2wks... I rolled back system settings to Sunday night as well to see if that would make a difference. I thenpurchased a new Linksys Wireless router (WRT160N) along with a wireless adapter (WUSB600N) and they both work from my XP laptop, but not with my Windows 7 Pro 64bit (with the latest driver). Right now I am using my laptop to connect to the internet using the (WRT160N) router with no issues. Same goes for if I am using the WUSB600N wireless adapter on the laptop using XP, which leads me back to it being a HomeGroup issue possibly? Any other ideas?

The latest Windows 7 64bit network adapter driver can be downloaded from the following website. GIGABYTE - Support&Download - Motherboard - Driver - GA-MA790XT-UD4P (rev. 1.0) Important Note: Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information. I suggest you open Control Panel\All Control Panel Items\Programs and Features, remove the existed network adapter driver from there and then install the latest driver. If the issue persists, please temporary disable the anti-virus program and check the result again. Meantime you may upgrade the router firmware if it is available.Arthur Xie - MSFT