I have been having a problem, not with logging in, but once i am in the game, everything is okay for a random but short period of time, and then i cannot see the chat, though when i am in haven i can see my avatar talking and using gesture such as waving and sitting, and other players look like they are answering me, but because i cannot see speech bubbles or the chat, no scratch that, i see the chat to the point where i stop seeing people talking, so it just stays the same as it was, also i cannot join,invite or change servers, pretty much i am stuck where i last was, i can walk and apparently chat, but i cannot actually play the game, i cannot speak with NPC's or do missions or the clockworks, i cannot move to different areas of haven either.
Please can somebody try to help me, any and all help would be much appreciated, i just want to enjoy the game again :).
Through your description, I can definitely tell that it is a case of packet losses FROM the server or disconnection from server.
Check your internet connection, make sure your internet connection is stable, do not use multiple unbridged connections.
If you are using steam, please ensure your connection speed is to the max.
Anymore details I can't answer can be answered through http://www.spiralknights.com/support/#mail