[bedoig]

I think this happens when some of the settings in EPST get corrupted. Next time you could try this:

Go into EPST-->Edit-->Enter your MSL-->View Info-->M.IP Settings-->Change MIP_Mode to a different value, and then change it back. You can alter and restore other settings as well, the goal is just to get the device to refresh. Hit Menu-->OK. Your device will reset, and hopefully acquire signal at normal speed.