If you are running mgcamd then try leaving receiver on france2 or M6 channel for a few mins, because the tps keys are auto-update. You will need to update the keys each day though by going to these channels.
also you may need to leave it on the france2 or m6 for a while (10mins ~ 20mins) so that it gets time to collect all keys for that day, or you may still lose channels at some point. Dont forget that you will need the update each day too.