Hi all, We're pretty much stumped as to why we're having this problem. We've been with our ISP for nearly 2 years without this problem, and about last week suddenly 2 of the 5 desktop PCs on the network suddenly developed the local internet access issue. 3 of the 5 desktop PCs use ethernet/wired, 2 of the 5 desktop PCs use wireless N. The problem seems to happen equally to wired or wireless PCs. The problem is intermittent, it has since happened on 4 of the 5 desktop PCs on the network. The problem "symptoms" go roughly like this: -The affected PC will stop loading web pages (in any browser) message: cannot load web page. The network adapter will STILL think it has internet access. OR -The affected PC will stop loading web pages (in any browser) and the network adapter will show local only. The PCs have shown a range of problems and I believe we've tried most of the fixes out there. - Enabling/Disabling the adapter will sometimes work. Most of the time it will not work and there will be no internet access. - Pinging google.com or an address will sometimes work but mostly cannot reach it. - ipconfig /renew /release /renew6 /release6 etc will sometimes work after multiple attempts and a reboot, but often gives the error "cannot find file.." - flushdns will complete but doesn't bring back internet access. - rebooting the modem router will sometimes work, sometimes not. Sometimes it will bring but access on ONE PC but NOT on the other. - rebooting the PC - same as the router. - checked for the bonjour / id string service, only one of the PCs has this service and it is disabled anyway. - Tried the Vista reg fix for forcing DHCP broadcast. Worked on one of the wireless PCs, but the next day after turning on the PC the intermittent/local only was back. - We have tried 4 different modem routers. ISP provided (thomson BEbox), Belkin modem router F5D8633-4 (we used this one for 2 years+ and never had a problem), and 2 new Belkin F5D8635-4 v1 - We rang our ISP who told us there were no problems detected, they also said they did a 24hr line test and it was fine. -We've tried setting Google public DNS on all the PC network adapters and the router and the intermittent internet still occurred. - Tried disabling ipv6 and problem still occurred. - Checked windows update for recent updates but the only thing prior to the problem was an Microsoft Security Essentials Client update - tried disabling Windows Firewall and MSE and still no access - Tried updating the wireless driver on one of the PCs that lost access, made no difference. Our setup looks like this: Modem Wireless Router --> 2 wired desktop PCs, 1 TP-Link wireless access point --> 1 wired desktop PC, 2 wireless PCs. All computers are Windows 7 ultimate 64bit All the computers are custom builds. I have a Samsung Windows 7 starter netbook which I occasionally turn on and connect wirelessly - have not yet experienced intermittent internet with this. We are really pulling our hair out here! Not sure why we have been able to use the net for years and suddenly almost all computers on the network have this issue! Sometimes at the same time, sometimes independently. Internet can suddenly drop on one or two PCs just by loading google (router internet lights still on) Since all the PCs are custom built I'll have to go dig out the motherboard model nos and so on but my PC is: AMD PhenomII x6 core 6GB ddr3 primary hdd: 500gb sata, x1 seconday hdd: 250gb mobo: Gigabyte GA-880GMA-UD2H Ethernet: Realtek Sorry for the super long post, just trying to put all the info I can think of that might be needed. Many thanks in advance if you can suggest why this is happening and what exactly could be causing it since we've tried changing multiple routers and the problem is happening on more than one PC... I've tried to list all the "fixes" I've attempted and think that's all of them, but I might have missed one or two and will probably be trying any more that I come across.