Specifications: The Machine is Custom-Built, running Windows 7 Home Premium 64-bit Processor: AMD Athalon II x4 620 @ 2.6 GHz RAM: 4.00 GB Network Card(s): Realtek PCIe GBE Family Controller (built-in to the mother board) ^ The above card wasn't working, so I bought a separate one: Dynex Gigabit PCI Adapter For reasons explained elsewhere, I also got a USB Wireless Adapter: WNDA3100v2 - RangeMax Dual Band Wireless-N USB Adapter Problem: Short Version Desktop computer will switch between "Local Access Only" and being connected to an "Unidentified Network". Occasionally the "Unidentified Network" will get "Internet Access" but it's never really connected as I cannot browse or do anything else that required an internet connection during these times. It also will not see the router, I've tried pinging the router and connecting via its IP Address. Long Version I came home from graduating College towards the end of May. While I was at school there, my Desktop was connected to the campus network and never had issues connecting if the campus network itself was working properly. I brought the computer home on two occasions during school breaks and it worked fine on the network here. However, after coming home upon the completion of school, I hooked up the Wireless and found that it was limited or no connectivity. At this time it was still running Vista 64-bit Home Premium. The reasons for this was because my school's network had certain software specifications in order for a computer to run on its network. These software specifications hadn't been completely stabilized with Windows 7, though they said it should work, I decided to play it safe and stick with Vista. However, now I was finding myself unable to connect. So, I did a bunch of things (explained below) over the course of two weeks with nothing working. Except one brief period in which it worked for less than an hour. However, roughly two weeks after I came home, I had upgraded the computer to Windows 7 and was preparing to simply wipe it completely and install Windows 7 from scratch when I noticed something odd. My Windows 7 machine now wanted to do updates. Of course, logically, I knew it could only want to do them if it had finally reached internet access. I looked and unbelievably, for no explicable reason, I had internet access. I waited and waited for it to go away, but it didn't. So, I had internet access. 10 days later (aka as of today) as I was online, the internet connection suddenly died on me. The router hadn't gone out, the internet was fine on my laptop's wireless. But, for some reason, my Desktop's ethernet suddenly went back to limited connectivity again. Since I don't know why it suddenly began to work and I don't know why it suddenly failed again, I have no idea where to begin in order to get this problem fixed. What I've Done: Trying to put this in chronological order, but I've done a lot of things and it isn't all recent in my memory. As it stands I may not even list everything I've done, so if you bring up an idea and I've done it, I'll let you know. It's not me trying to be argumentative, I simply may not account for everything here and you may end up jogging me memory by it. > I've tried connecting via another computer's ethernet jack. Interestingly enough, my Laptop and another Laptop in the house wouldn't connect to the modem/router via ethernet. This initially led me to believe it was the router. However, several days into it, I tried a Desktop computer downstairs via the ethernet and it connected just fine. > I've tried it with no less than 3 different ethernet cables > I've tried rebooting the router by turning it off, waiting, and then turning it back on > I've tried restarting the router by hitting the small button in the back with a paper clip > I've tried connecting directly to the router on all 3 computers (even the Desktop, ugh, lugging that around sucks) that wouldn't connect via ethernet. > I've had all of the anti-virus and firewall software for the school removed from the computer. > I've shut Windows Firewall completely off just for the purposes of trying to connect. > I've had the router replaced. Before I realized that there was a computer working on the ethernet, I called Verizon and naturally they concluded it must be the router as well and sent a replacement. > I've tried reinstalling the drivers for the Realtek adapter (the other two adapters were fresh installs as of today. But I searched online for their latest driver updates just in case). > I've tried manually rebooting the motherboard by disconnecting it from the power supply, waiting, and reconnecting. > I upgraded from Vista to Windows 7 > Finally, I backed the computer up and prepared to reinstall 7 from scratch when I noticed the update thing, and voila, I had a connection for 10 days for unknown reasons it began to work. > Today, during the morning, I suddenly lost connectivity and I haven't had it back since. > I tried installing a separate ethernet card, but that didn't change anything, it still won't connect. I also tried a Wireless N USB adapter, but that "connects" to one of the Wireless networks in the house (the one off of the main Verizon router actually) but there's no actual connection there it behaves like the ethernet does, with a "Limited Connectivity" behavior without actually seeing the router. So there, that's what I've done. It feels like I've done more so I may have forgotten something. I'd like to fix this problem without having to reinstall Windows 7 from scratch but am willing to if I have to. I've posted on the FIOS forums for Verizon and tried things they've suggested, but none of them seem to work. I figured that this is likely more of a software issue on my computer's end and was hoping it might simply be a setting I'm unaware of in Windows 7. I should note that one thing I've noticed is that whenever it started working, it would ask me what type of network I was on (seems to be standard for Windows 7 and Vista) and I selected Home twice. The first time it connected (lasted an hour before it went away) I had selected Public. Selecting Home the first time was what lasted 10 days. I selected home again today when it came up, but nothing happened. The trademark sign of an issue is that it won't see the Home network, it instead can only see an "Unidentified Network" which only seems to consist of my computer.