professional cps

I have a HT1250 (UHF) and an HT1250 LS+ (VHF). My Professional Radio CPS (RO06-12-08) reads and writes to the UHF without issue, but will only read the VHF unit. Any ideas on what the issue might be and a solution. Note: I have a friend with the same software and he is able to read and write...

I'm currently having some trouble programming CDM1250s. When I try to read the radio, I'm getting an error saying to ensure power is turned on for the radio and RIB. I've verified the RIB is working with a Astro Spectra, however no luck with (2) CDM1250s... Any suggestions?