The original post: /r/pihole by /u/msalad on 2024-10-12 03:39:33.

Sorry for the awkward title phrasing.

I upgraded from gigabit to 2 gigabit fiber internet today. My pihole is running on my server in docker. No issues in the past when downloading at full line speed on my gaming PC.

Now, when using my pihole for DNS on my gaming PC, when I download a large Steam game on that gaming PC (sustained 175-225 MB/s), I lose all internet connectivity after a few minutes. Only fix seems to be removing my pihole as the DNS server, setting it to Cloudflare or similar, and then disabling+re-enabling my network adapter.

This doesn’t happen on my gaming PC when I’m using a different DNS server than my pihole and it didn’t happen before upgrading to my 2 gig connection

Pihole is running on my very beefy server with a Threadripper Pro 3975wx CPU so I can’t see it being a case of my hardware being underpowered.

Where do I begin to diagnose this?