I have connected to new ISP, for acces to network i use nanobridge m5 like on ZESTAW III -> http://airmax.pl/pomoc/rodzaje_zestawow.php . ISP device is NanoStation M5. There is LOS from NB to NS.
Distance is 2km and been working fine for the last year until last week. It didn't pass traffic, the station is connected but both sides have a very low CCQ (30-50%).
When I aksed to reconfigured the AP to use only 20Mhz bandwith it started to pass traffic again and the CCQ went up to 98-100%.
We have tried all channels available and ran airview, the frequency band is clear on all channels.
Nothing have been done on the links, no reconfiguration, no tower installations.
It;s snowing season but there were no problems last year i december.
Is it possible that one radio gone bad and need to be replaced?
Signal is between -72-75 RSSI
.he fw is 5.5.2 with Airmax and autoack on.