Mk RB433 + R52n (Atheros 11N), RouterOS 5.13. A few boxes with the same configuration around a campus broadcasting 3 VAPs.
My users complain about arbitrary disconnections even when in areas with strong signal - even in the office with the radio!
All I can find in log files (even with debug mode turned on) is a stingy message wireless,info MAC@wlan1: disconnected, extensive data loss without any further related information.
Wi-Spy didn’t reveal any interferences. Downgrading from N to 802.11 G, B didn’t help these people either.
I have no idea of any further trick or a module that would at least help me to get a better clue what was really happening at layer 2.
Dear gurus: any ideas how to proceed ? …big PLEASE with a cream on top…
Generally I see those errors when either a huge burst of interference shows up (microwaving popcorn), a customer with bad signal is having issues causes everyone else to drop or someone is trying to hack the encryption.
Since you said on campus, I assume this is a college? Seriously check the microwave, sometimes it has to run for a few minutes before it cycles through and really causes interference.
There is also a spectral scan that ROS can run with certain cards.
Interface wireless spectral-scan wlan1
Seems to have more information if you are using The Dude.
There is no problem with CCQ. But, what I think I have figured out: when notebooks recognize that there is an AP with Broadcom chipset, it suddenly switches to it even if Broadcom is much weaker (in a different floor of building). This results in user complaints of network instability.
Any idea what could make the difference that makes old Linksys much more attractive for various notebooks than Mikrotik R52n (Atheros chipset)?
? …big PLEASE with a cream on top…