Quote from nassau:
we have had your sceanario happen many times. In fact IB's message / red bar highlighting the quote line does not always happen. Some of the traders got the red line and notice and some did not..I am not sure if it depends on what server and country you are logged through. You are correct in that you can not execute a trade. We have had position and have had to shut down and reboot before IB/tws redline disappears and allows one to trade. This was suggest by IB support and it seems to work when the difficulty occurs.
It seems to be random when trading resumes as some can trade immediately and some of us must reboot.
I can name aleast a half a dozen stocks that this has happened on.
we just chalk it up to another glitch, par for the course.
w