Network crashing

Dear all

I hope that somebody would be able to help me here.

I have setup a wireless network in my village `using Microtik 433 and 411 5.0 GHz router board as a main link for each sector, under the Microtik i setup a switch that connect the Microtik router to a Ubquity 2.4 Ghz AP and the at AP is connecting the 2.4 clients to the Network.

The system worked fine for the last 6 months with no problems at all, only for the last two weeks I am facing a frustrating problem, the whole network crash suddenly, ping from usualy is 1 ms between the bases suddenly become 800ms then 2000 ms and then time out or destination host unreachable, and it stay like this until I restart Microtik router that connect my network to the ISP. then everything will be back to normal sometime for 10 hours or 2 hours only God knows.

We are facing a problem with the electricity in the village so power cut is happening every 6 hours, therefor since the beginning I installed a UPS under every tower with 100AM 12 v battery that provided constant power supply to the devices, sometime the battery is out of the energy due to the shortage of power supply so the devices turned off.

I am using POE 18 v adapter for the Microtik router.

three of my microtik router board are set as AB bridge and the rest as client, my firmware is 5.8.

please I need some help to understand why the whole network crash and how to find a solution.

Thank you in advanced to anyone who participate

Saasouh

I have the same problem.signal is not stable

i have are (rb52hn-433-19v5 A psu)

We also had a similar problem.
Decided by applying on-line UPS.
The solution can be seen here: http://tandem.ck.ua/ups_mt-eng.php