Device Disconnects

[jpb]

I have a system using two R510 access points.  I have configured two WLANDS.

WIFI 2.4

WIFI 5GHZ

There are approximately 42 devices connected.  The system has run since 2018 with no issues.  Within the past few months 5 or so devices are disconnecting and reconnecting non stop.  Usually connected for a minute or two before disconnecting and reconnecting over & over.

I suspected may the devices were getting old so I replaced my Nest Thermostat, smart bulbs and Moen Smart Faucet.  Even these new devices are doing the exact same thing.

I rebooted the system and updated the firmware and the problem still exist?

I created a new WLAND and connected these problematic devices to it.  No more disconnects?  Moved them back to original WLAND and problem returned.  Any idea why?  epically after 6 years with no issues.

[sanjay_kumar]

Hi,

Could you please confirm the software version running on the APs?
Also, is there any config difference between the old and new SSIDs? or are they identical?

[jpb]

all AP's are on 200.15.6.212.14

All WLAN are identical in name with exception to the SSID name.

Thanks

[jpb]

all AP's are on 200.15.6.212.14

All WLAN are identical in configuration with exception to the SSID name.

Thanks