MR5200 won't attach to n77 after firmware update - multiple questions!

I don't have QXDM available - though if you are able to send me tooling / instructions I'll happily collect any debug you would like. Equally - I thought that QXDM logs could only come from a modem directly connected - in the instance of the netgear, since there is serial available, would need your guidance on this.

I was viewing this from the eNodeB / gNodeB perspective on the PHY/MAC/RRC layers.

To pass onto your engineers - this is the output for band 77 (and then later band 78) for the capabilities of the device - note the difference in supported bands which appears to be a regression. ie. it was functioning fine before the latest update.

In the next three code blocks, I've included the exert from the specific channel answer (n77), then the capability enquiry, and then the answer - I've had to attach the response as a text file due to size.

                  channelBWs-DL fr1: {
                    scs-15kHz '0000000000'B,
                    scs-30kHz '0000000000'B,
                    scs-60kHz '0000000000'B
                  },
                  channelBWs-UL fr1: {
                    scs-15kHz '0000000000'B,
                    scs-30kHz '0000000000'B,
                    scs-60kHz '0000000000'B
                  },

The request follows

{
  message c1: ueCapabilityEnquiry: {
    rrc-TransactionIdentifier 0,
    criticalExtensions c1: ueCapabilityEnquiry-r8: {
      ue-CapabilityRequest {
        nr,
        eutra-nr
      },
      nonCriticalExtension {
        nonCriticalExtension {
          nonCriticalExtension {
            nonCriticalExtension {
              nonCriticalExtension {
                requestedFreqBandsNR-MRDC-r15 {
                  bandInformationEUTRA: {
                    bandEUTRA 3
                  },
                  bandInformationNR: {
                    bandNR 77
                  }
                },
                nonCriticalExtension {
                  eutra-nr-only-r15 true,
                  nonCriticalExtension {
                    requestedCapabilityNR-r15 {
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}

This is the response from the Netgear device 

see attached file