If any kind of IB technical problem occurs it might repeat throughout the day. Recently they had many many bulletins out like this one:
If your connection gets lost, you don't have to close TWS, it will start trying to reconnect automatically. Happened several times to me today.
I get the bulletins all the time, but I haven't had this problem yet. I wonder why it only effects some of us?? I only trade equities - could it have something to do with the type of account? I use almost exclusively limit orders, I wonder if the type of order matters? Good luck to those of you with problems, I hope I don't join your ranks.
Go www.dslreports.com/tools/ and run the tweak test. If you get the >2sec latency condition, download Dr. TCP and adjust your RWIN number according to the web site. The RWIN default in Windows is set too high and causes the >2sec latency condition which is a reason why some users are getting dropped connections.
Better to pay higher commissions than risk having your account wiped out by all too frequent IB downtime...