I am extremely confused how changing settings in internet explorer would allow for one character on an account to suddenly not get connection issues. This may have worked if it was every character on your account maybe, but this just seems like the issue stopped right after you tried all of the fixes support gave you. I was hoping for an answer that wasn't this because there are multiple people I know who live in the same houses having similar issues with only certain characters or one of a couple have this issue. They are each on the exact same internet connection but only one of them will have connection issues even through the same vpn with the same routes.

I honestly think every character someone has connects through the game in a different way and the route that particular character was routing was experiencing timeout on a node while pinging the server. Unfortunately there is little information on how characters connect to the server and how many channels you are put through or if this does not happen at all. I came here in hopes of finding out why some of my friends are randomly lagging horribly and not getting kicked through literally the same connection as other friends having no issue at all. Also certain alts of friends have worse connection than other of their characters, so that is what led me to my conclusion in the first place.