I have no trouble on any other server in BF 1. On the rTr hardcore 200%, DAM DLC server I get the "Server disconnected" "You've lost connection to the sesion messge" I get 50 ping on this server. This happens about 98% of the time. I have no issues with any other server on BF 1.
i connect at weird times and ive not noticed that issue, then again its not often. Might be a good idea to pop on TS and ask around there as well