Losing internet connection

[monarchco]

My computer will randomly lose internet connection progressively on ONE computer. What I mean by this is that it'll lose certain connectivity features, without losing others. For example, when it happens I can keep watching the youtube video I have pulled up (and it will continue to buffer past its current buffer point), but I can not load any new web pages. Additionally, I will suddenly no longer be able to send any discord messages, or pull up a discord server not already pulled up, but I can continue to receive messages on my current discord server. I can even see the messages I send from my phone on the same discord server, but again, any attempts to send messages from this computer just error out when sending. On steam I will still be able to send and receive messages correctly, additionally I can continue playing MMO/online games at this point without issue (but again, can't load any new web pages anywhere) - after a little while longer, then I lose all connection, including current youtube videos will hit the end of their buffer and not continue loading buffer, discord will disconnect me, and I'll lose connection to whatever game I'm playing.

 

Something this issue will resolve itself over several hours. Alternatively, rebooting my computer immediately restores the connection. Rebooting the router also immediately restores the connection. Or I can go into advanced network settings, disable the network adapter, enable the network adapter, and that restores the connection (though the connection appears to drop again quicker this last way compared to rebooting the PC).

 

Originally this issue was happening on wifi, so I ran a brand new ethernet cord to the PC, but the issue was identical. Furthermore, none of the other devices, including 4 other computers have this issue on this network, it is only this computer.

This is an issue I've been having for several months, but its been getting progressively worse/more frequent over time. Originally it wouldn't even disconnect fully - it would only go into the state of not sending discord messages, and not loading new webpages, but could still play games and watch video content of youtube/streaming services already pulled up. The complete connection loss (discord disconnects fully, can't play multiplayer games, etc) is a recent development within the past month or so.

 

This computer is quite robust. its a 4090 and an i9 13900k both on a shared custom loop that I did myself. The motherboard is a gigabyte Z790 aorus master. Windows 11 is on a 980pro.

For the first 6 months or so of this PC being complete, there were no network issues. The first network issues began immediately after 1 event. 1) Comcast switching the entire neighborhood over from the old wires to the new fiber system. A lot of other individuals in the neighborhood reported starting having issues around this point too. - Though since it is ONLY this PC and none of the other PCs or devices on the network, I'm not sure how it could be related.

I've updated the bios 3 different times since this issue first began (three different bio revisions, that's how long this issue has been going), I've updated windows at least a dozen times. I've updated all drivers I could find, including downloading the Killer wireless utility (this was back when the issue was on wifi, before I ran an ethernet line), the ethernet adapter is a different brand though, but again the issue is the same.

I've even tried connecting to a different router (I have two different routers ran to the modem). Nothing at all puts a dent into this issue.

Sometimes the issue appears after several hours of using the computer, sometimes the issue appears after just a few minutes since the last restart.

 

I really don't want to have to reinstall windows, because basically none of my programs are on my C drive where windows keeps them active, they're all on different drives. I've successfully tweaked and fixed issues in registry before, but it was never network related. I'd be more inclined to go this route if anyone thinks it could potentially be a fix without doing a completely clean Windows install that'll take several days straight to fix all my programs again.

 

Please I'll gladly take any help from anyone who actually reads this and recommends something that I haven't already explicitly stated I've done.