Need Help with Slow VPN Speeds on My Ubuntu Server - Seeking
Solutions!
reddit / selfhosted

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DJOCKERr · 2023-10-04 19:32

Hello fellow Redditors, I'm in a bit of a jam here and could really
use some advice. A few years ago, I converted my old desktop PC into
an Ubuntu server, and it's been humming along just fine. I've set up
Docker and Portainer, along with a couple of Pi-holes (one for a
private VPN and one for the local router), two WireGuard VPNs with
specific container access, and a bunch of other lightweight services.

The issue I'm facing is that recently, my VPN speeds have become
frustratingly slow. I noticed this when I installed LibreSpeed, a
small container for speed testing on the server, which consistently
gave me dismal results. Even when I tested the speed on my device
through the VPN, it was equally sluggish, if not worse.

This slowdown seems to happen randomly. To temporarily fix it, I have
to remotely restart my router and then restart the server. This gets
my speeds back to normal for a few hours before the problem
resurfaces. Occasionally, switching or restarting the VPNs has helped,
but not always.

I suspect it might be my network card, but I'm unable to verify this
since I'm currently out of the country and can't access the server
physically. Strangely, when these issues occur, I can still smoothly
stream 2K video from my CCTV cameras, even with all four of them
running simultaneously.

Any ideas on what might be causing this and how to fix it? Your
insights would be greatly appreciated!