Thanks for the heads up!
I'm using it self-hosted on a Hetzner VPS.
Apparently they also block certain ports. As soon as I route the traffic through Tailscale through the same VPS I can connect without issues (My phone was affected as well)
1000%
I got legit Cloudflare Workers Anycast IPs that I was using for websockets blocked.
I also got blocked from using RustDesk.
It's been crazy. As this happens intermittently. I had to set up a tailscale exit node in one of my servers to circumvent this crap. I lost several days and called Vodafone (ISP) to understand what was going on.
I'm in a process where application-level programming isn't cutting it anymore (I still have a lot to learn, but it's in the diminishing returns).
I've been looking to understand the entire stack at a deeper level (from how requests are made to how they're parsed), and this seems like the next natural step!