Cryptography error while trying to update metadata from OMDB

[Yoeri]

Thanks for the advice so far! I resolved the issue, but for posterity sake, I'll describe the following steps in the hope it helps the next person who encounters this problem.

I've attempted the following:

1) disabling IPv6 on Jellyfin (this was already disabled on my configuration, so didn't need to change any settings)
2) disabling IPv6 on Ubuntu by using the following commands:

Code:

#comment: this only works until the next reboot!
sudo sysctl -w net.ipv6.conf.all.disable_ipv6=1
sudo sysctl -w net.ipv6.conf.default.disable_ipv6=1
sudo sysctl -w net.ipv6.conf.lo.disable_ipv6=1

after this was done I attempted another rescan, to no avail.

I had already tried restarting Jellyfin, which didn't work, but eventually I decided to just restart the entire server, which resolved the issue! I'm assuming that due to me adjusting the firewall a lot, something just got stuck. For context; I'm renting this server from a provider who's providing a firewall interface as well, so I can imagine that this can get a little hormonal when you adjust it 30 times a day.