I had a weird experience yesterday with an AP (A5c+65 degree KP Panel), and a few customers connected with c5c radios.
Out of no where we received a call from a customer regarding slow speeds, after checking into the AP I had noticed all of their PhY rates had dropped to 7/7.
I had figured that it was maybe due to high winds we experienced here earlier last week. However, I decided I would update the firmware on the A5c side, and then the customer side just to see.
After upgrading all firmware from 2.4.1 to 2.5.1 the issue was gone. All PhY rates jumped back up into the high 300’s and above.
My question is, how does this happen out of the blue on old firmware. Also how does upgrading the firmware to the latest fix this issue? It just seems odd to me.