well... i have some issues with RB600 +XR5 +XR2...

on normal day operation the XR5 link works normally (i dont remember signal strength right now, but is -in 60 to -75 range), but suddendly at nights the signal strength goes down near to -90, until 5 or 6 am, goes back to normal operation. this is not every night, randomly appears ONLY at nights. we areexpecting that this issue is by the power line (giving us very very bad voltage lines)... but if someone have experienced with something like that, i hope you can help me.

another issue is with RB600 + XR2 +XR5's (not neccesary one), before we install there was an old Teletronics "CPE router" covering a 20Km zone with a 15dBi omni. almost all clients connected to this type of AP have an IP survilleance cam, that ussualy "drops" all the cell when a certain numer of cams are activated, in some cases it just need to activate one single cam to drop all the cell. we have think that is traffic that makes the cell dropping, but RB600 only registers 1.5Mbps maximum traffic in XR5 interface with six cams working, the seventh cam drop the cell, ACK timeout is dynamic, noise inmunity is activein some cases. what can i check to get the possible causes of this issue????

Thanks for your time and help!!