So im back into the radio world recently. Last time i was programming radios was back when MTS2000 RSS was the thing. Now this CPS is pretty damn awesome that we have to use for these pieces of work now days. So i have a UHF MT2000 on a local system that simulcasts the same channels as the 700 system. I have a XTS2500 setup on the system in a NAS format. The issue i am having, is when i turn the radio on it seams to receive all audio for a bit, even sometimes for hours, then for some reason it will stop receiving audio. I no there is audio as the UHF is awake. If i change the conventional channel up one then back down it will immediately come alive. If i do nothing and wait awhile it will start working again, sometimes when there is traffic again or maybe 15 mins later. I have tried to adjust every setting i can think of. I am thinking at this point i may have the incorrect ISW settings. Not sure though. I have the correct band plan in (+30.0000). I have the hold time for scan for voice and data to 1 sec. ISW window adjustment is FE35. System search time is 1 sec. I think for the XTS2500 the ISW is not correct, but i am not sure. I do not remember setting this in the old RSS, Could have forgotten though. If anyone has a little insite that would be great. Thanks in advance for any help guys.