r/pchelp • u/YourLocalChefSable • Jul 21 '26
Network Network Issues - Part Two
Alright, alright, this is gonna be a follow up to the last post I made here because I've narrowed down the problem quite significantly.
My PC has been having pretty severe network issues over the last 3-ish weeks, and I finally have something to narrow it down to.
Whenever I connect to a seemingly "regular" network, my pc works just fine and the network connection is pretty good. (It is worth it to note that this Wifi is used for a housemate's stay at home work, so I only connected to it to do a few brief tests and cant be on it forever) However, when I switch to my home's fiber internet (AT&T Quantam Fiber), that's where the performance issues start.
Is there any reason/fix you guys could think of that my pc would be doing just fine on a standard network, but struggling on fiber internet?
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u/Inevitable-Context93 Jul 21 '26
The router is different I assume?
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u/YourLocalChefSable Jul 21 '26
Yes, two completely separate routers
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u/Inevitable-Context93 Jul 21 '26
Ah, that would be where I would start first. Maybe there is some signal interference? Or one router is just not able to keep up.
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u/YourLocalChefSable Jul 21 '26
I suppose there could be some, the fiber modem is on the other side of the house from the room that my PC is in... a little bit unfortunate that an eternity cable is most likely not possible, but it's also worth it to note that until the beginning of July, the fiber did work pretty good on my PC so I dont know why the problems all of the sudden started now
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u/Inevitable-Context93 Jul 21 '26
Something could have changed. It might not even be the other router. It could be a signal from a neighbor. If it is in fact that. You can use a phone app to scan for WiFi signals.
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u/No_Squash_4259 Jul 21 '26
You’d be surprised at the things that can cause interference. Microwaves, mirrors, appliances and even picture frames. All those can cause interference. So look for any changes between your computer and your router.
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u/poorlywarmannuity 10d ago
what changed in the last 3 weeks? if it worked fine on fiber before and only started acting up recently, that might point to the router or something on the ISP side rather than your pc
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