Question Ethernet can't connect to gaming servers

[lkmellone]

Hi, I have already posted a similar problem here once.
I just can't connect to any gaming servers (steam or whatever) through ethernet connection. I have already tried connecting through Wi-fi and it works, but when I plug the ethernet cable, it doesn't seem to connect anymore to these servers. I can navigate normally in the internet by both ways, but can't log in or search for gaming services anymore through cable.
I'm not a network guy, so I really can't troubleshoot this on my own or search through topics, as I believe it's an especific problem.
I have already tried flushing dns and etc, and I believe this started after I updated my ethernet driver last year.

Any help?
Thanks in advance!

 

[jsmithepa]

When this doesn't work, what message(s) if any?
Disable WIFI when using ethernet.
Are u ethernet connecting through a WIFI extender?

 

[lkmellone]

When this doesn't work, what message(s) if any?
Disable WIFI when using ethernet.
Are u ethernet connecting through a WIFI extender?

I have no messages in some games. The servers just won't load. If any messages, is something like "can't contact servers" kind of message.
I do disable the wifi when I'm using ethernet on my pc.
My ethernet is connected directly through the router.

I just don't know why this kind of thing happens only when I'm through ethernet...

 

[jsmithepa]

Well, nothing ^there help.

Last thing I have is, remove everything that has to do with KILLER, gamers complain about this "feature."