Interference on all channels

Hello,

RB433AH (3 R52N Cards Panels)
on clients > SXT Lite 5.8Ghz

I’m having interference on all channels and all protocols in a city area of 2km.

I already changed the panel cables, everything is ok!

Does anyone know how I can solve this !?

All channels, client connect and disconnect automatic, interference!?
http://prntscr.com/i9tkm0

Nothing about interference. Your picture clearly states too weak signal at -80 dB. You need to reach around -55 dB to get good link.

It turns out that I have already tested all possible channels (5300-5500) and none gave a good signal.
It was working perfect for 1 year.

Have you upgraded your hardware? Have you upgraded ROS in your devices? Have you changed anything in the configuration? Have any other ISP installed new antennas in the area?
It is hard to belive that all three cards and coresponding anntenas have suddenly problems. Have you replaced your RB433 with other device?

Yes hardware is upgraded.

No change anything configuration, only channels because interference.

Have you replaced your RB433 with other device?
Yes, in antennas have RB433AH only 3 cards R52N, and recently I create VLAN for authenticate PPPoE clients on RB3011. Only this.

Try and play one card only
there may be interference because the cards are stacked

This happened shortly after I put one client next to the other.
About 80 meters.
Is there something I can do to solve this !?