Thank you for your quick reply,
5GHz is not allowed here ( Israel ) for outdoor use. So we ONLY use 2.4GHz
We usually see a better RSSI from the Ruckus AP's around 58-70bm ( around 65-75dbm with the Cisco. Once the Ruckus reaching around 68-70dbm the MOXA connectivity is starting to do the most troubles. the industrial pc's are even experience worse issues.
Our Zone Director using Version 10.1.1.0 build 42
Our AP's is t300 like i said. and installed horizontally as you can see on the attached photo. ( Blue cirle = Cisco Antennas. Red cirle = Ruckus T300 Unit ) .
Laptops connection is pretty good overall . much better than our main clients.
Another thing worth mentioning is we have around 90DB Noise Floor all around here.. Maybe its something that can affect ?
But like i said - we don't have any issues with our clients on the CISCO network.