So basically I had played for six hours the night before the patch with no issues whatsoever, then started playing another six or so hours before the patch which were also fine. The strange part is that afterwards whenever I try to connect to my friends server, not only does it take ages if ever to actually connect, but my packet loss on the teamspeak we're using slams to from between 50 to 100%.
This happens whenever I connect to either of my two friends, who both live in the same town and have the same ISP. The really weird part is that when connecting to dedicated multiplayer servers, the packet loss is gone and I can connect fine, but for some reason it also gets extremely laggy when large faction invasions take place.
I'm really pretty confused and can only assume that something with the patch itself is a bit borked or was changed in a way that puts a lot more strain on my relatively poor internet connection. I also don't really know what information to provide in order to help solve this problem, or if I just need to wait until another patch makes the game playable again. In its current state I cant really do anything besides singleplayer.