The error is slow or no loading. This is especially the case on the first tee if there are 4 players. These players are all online because they can communicate by chat. It is usually one player who either doesn't load at all or slow loads each hole. This can happen on anyhole but it usually starts on the first hole. I have asked a number of the "loading" players what their ISP is and it can be DSL or satellite (no pattern there).
2 players never a problem-3 players occasionally a problem-4 players usually a problem (at least 50% of the time everyone has to disconnect). The only pattern I see is that it is almost always one player that cannot load.