Got a ubiquity IP radio on a tower. One side of the link negotiates 1G but the other side has issues. It will negotiate 100Mb after a reboot every now and again (very random) but mainly sits at 10Mb. I can iperf the link and saturate it on 100Mb for extended periods (minutes) but eventually it dies and renegs back to 10Mb. Sometimes the link drops altogether and won't negotiate at all.
So after replacing all the UTP running to the switch with STP, putting a grounded switch in, and everything I can to block interference in the doghouse, I think I will be forced to start looking at the copper coming down from the tower. I don't think it unlikely that maybe the installers were hard on the line and work hardened a couple pair of conductors or untwisted them exposing them to interference. I'm new to interference troubleshooting so bare with me.
My main question I was hoping to get answered: is there a way to run a cable verifier on the line going up the tower, with it being plugged in to the ubiquity gear (which requires a PoE injector)? How far can I get in troubleshooting this without having a tower hand come climb it?
Any ideas or suggestions on diagnosing this issue would really help. Thanks.