All other network traffic works perfectly but I can't connect to login.microsoftonline.com. I'm using runit, with connman+wpa for network manager. I've changed browsers, so it's not a browser issue. I can access it on my phone so it's not an issue from their side wither. Afaik I don't remember setting up a firewall at all. I've scoured the whole internet for possible solutions, but that's a bit hard since I can't pinpoint what exactly is the problem in the first place since all other sites work.
Please refrain from commenting on using microsoft services, I'm required to use them by my university administration.
What does it resolve to in your runit box?
lol
If you are obliged by the university administration to use microsoft services, you should also ask there for a solution and not here.
Nobody is forcing you to use Artix.
"Ceterum censeo M$ esse delendam"
I think I saw you post on Reddit (https://old.reddit.com/r/artixlinux/comments/1cwdfro/loginmicrosoftonlinecom_gives_temporary_failure/) as well, reporting that switching DNS servers solved the issue.
To get connman to stop overwriting resolv.conf, you can add the line
mkdir -p /var/run/connman
to the runit service's conf file.
See this older thread (https://forum.artixlinux.org/index.php/topic,3547.msg22945.html#msg22945).