Hi Amoud,
one of our clients reported the similar problem with Tradegate starting a few days ago, (e.g
GLE@TGATE)
I was able to reproduce the problem and opened a ticket at IB.
They confirmed changes on their side last week. The issue is known and they are working on a fix (hopefully...).
So it's an issue at the end of IB and not on your side.
Regards
Erich