PC doesn't recognize ethernet when turning on

[jtx]

hey guys,

Ever since i changed my MOBO to a new one (ASUS Rog Strix B550-f), every now and then when i turn off my computer and the next day i turn it on it does not recgonize/have internet. tried everything from connecting it to all other ports and the only solution i have found that works is that switch the ethernet cable. my little brother has his computer next to mine so when it has happened i just switch the ethernet cable from his to mine and from mine to his and both work, so it can't be the cables because both have worked in my PC and my brothers PC. 

i just turned it on after it being turned off since last night and same issue, no internet and the fix was to swap cables with my little brother. kinda annoying i have to do this almost everytime i turn on my pc..

Any idea what it could be? thanks in advance.

[vertigo220]

You already posted this and were responded to, why are you reposting instead of using your original thread?