Typically, the cell I am connected N78 is observed to offer 100Mhz bandwidth. Please check below picture:
please see below the same report sceen after updating to RUTX_R_00.07.07.2 (any other firmware published after 07.07.2)
This is 20% less bandwidth. I can’t say for sure if throughput has been affected by this because speed test results vary throughout the day.
The problem is easily reproducible. Here are the steps:
Used firmware 07.07.02 and any newer firmware since then for 2-3 weeks. I never show N78 band reaching 100Mhz as it used to be. It always shown 80Mhz during that testing period.
Dowgraded firmware to 07.07.01 and immidiately the N78 showed 100Mhz as it should for my area’s cell.
Upgraded back to latest firmware and N78 band showed again 80Mhz bandwith.
The above test were conducted on two different RUTX50 on two different areas which same resutls.
I am not sure if this is a UI bug or modem related bug. This is for Teltonika engineers to investigate further.