change your routers dns server in case your vodafone (germany) internet keeps you from getting shit done today.

Wow I'm glad today isn't a Home Office day. "Techniker ist informiert"

Sure, today.
The Easybox in our apartment shits itself constantly for the last 3 days now.

My DNS entries, in order:
8.8.8.8
8.8.4.4
1.1.1.1
1.0.0.1
<whatever your ISP provides, or your default gateway if on an individual device>

I'd suggest using it if you want best results and aren't afraid of Google or Cloudflare.