Timeout only when connected to CSGO servers? What to do?

So for a day I have had the problem that I always have Internet timeouts. However, this only happens when I connect to a server in CS: GO. I can watch Netflix for hours or do something else, but when I connect to a server in CSGO, I keep getting short timeouts after a while. These are then only on the PC, not on the cell phone. The timeouts last about 1 minute and appear about every 2-3 minutes as long as I'm on CSGO servers.

Any ideas?

I solved the problem by using a different Powerline adapter for my LAN cable in the PC.