Ping while gambling suddenly goes up?

I bought a new HP Omen PC 5 days ago and it worked fine with Fortnite. Now it's all in the game, I can't move for a while and then I have a 70-2000 ping for 5 seconds where I can't move. Dannach everything is okay again. But in the fight you can't use that, of course, if you can't move. Have already uninstalled the game, routers restarted and and and…

I play with Wlan, but otherwise never had problems with the connection just for 2 days. The strength of my Internet line, I just do not know and a LAN cable, I can't use synonymous, because my mother's cable, which then goes through the hall, do not like.

Can somebody help me?

This is usually due to an unstable wireless connection. Which line do you have?

Moin, have a link below inserted as you can see my test

You do not play Fortnite.
Is it possible to just buy an amplifier, put it in the socket and pull a Lankabel from there?
If the problem still exists, it may be that the router is broken.
If the problem persists, either the wires in or out of the house are broken.