oh yes, you said it earlier : B9 MR6. you’re quite up-to-date !! Which country is it ? (if you don’t mind)
All your 1800 cells have this kind of path balance ? I mean, this is a REALLY bad path balance, the call drop rate, ho success, call setup success, and most KPI indicators have to be terribly bad !
Since i doubt it is a real hardware problem, i think that’s a RMS issue : could you raise this issue to your RTAC ? They’ll probably give you a patch to fix it.