@Virgo 

Hi again,

I decided to post back to you again but this time with a SOLUTION to the problem. 

After reading this valuable information you sent to me in the previous post, regarding the DFS, I realized that my CPE510 was directed straight onto the AIRPORT. At the beginning I was so disappointed because all the channels that are supported by CPE510, all requires DFS settings. I said, OK, that's it, I give up.....

But by a lot of luck I saw the setting regarding TRANSMIT POWER....

I googled the term Transmit Power, it turned up to be the distance that the signal can travel....i.e. A bigger Transmit power Value, the longer the distance the signal can travel. Mine was set by default on 17dBm which was the maximum and I assume that this 17dBm should be set for a distance of 5km (which is the maximum distance advertised on the package).

My antennas are only 80 meters away from each other which is 1.6% of the maximum distance that the CPE510 can support. So I adjusted the Transmit Power down to 1, which is the lowest setting corresponding to ~5% of the Transmit power. 

Since the day I reduced the Transmit Power from 17dBm down to 1dBm (almost 4 days ago), the signal was never lost and the good part is that I still have full signal and a 80mbps download and 60mbps upload speeds which is fine for me. 

Have a great day, I hope you find this helpfull too. 

Kallis