I have system containing one ER706W V1.0 and two EAP650-outdoor managed by an Omada controller version  5.15.6.7 (linux version). The devices are about 50 feet from each other. The location is rural and there are no airports, militair facilities, radar or other things around.

The problem: at the start the system works great without any problem for weeks. At 20/01 I get the following message

By inspection, I saw that the Interference from one of the units was 83 percent and was frequently isolated and disconnected.

I have disconnected the unit and placed the unit close to the ER706W. Then I reloaded the firmware according to the procedure for it. Afterwards a factory reset (pin in hole) and the unit worked great for a while, but after an hour I had the same situation. I have posted the issue on the ER706W topic list but they are telling me it's an EAP issue and should be posted there. Here it is, on the EAP topics. It's no issue with distance, if I placed the EAP near (5 foot) the ER706W I have the same situation. The ER706W and the other EAP650 are working great thus it looks like a unit related issue. What the to-do now. If it's a defect of the unit, please provide me with the proper documents so I can claim warranty. If it is something please provide me with the proper procedure to solve this problem.

Note: wireless for only 2.5GHZ works fine, the internal communication seems to work.

Albert