We have many 450 AP's that are getting RcvFifoNoBuf when they are running at a gig. We are using Packetflux gigabit sync injectors. Is this affecting customer experince? Anyone else seeing this? They go away when you set the AP to 100base, but would like to keep them on 1000. Not sure if its a cambium or packetflux thing, you guys have a good forum so I thought I would start here.
I confirm that the 450 AP cannot run 1000BASE‑T without having slight receive errors due to platform limitations. I too recommend capping at 450 AP at 100BASE-TX. The newer platforms, 450i and 450m APs do not have this issue.