Cert based RADIUS issues

Posted by Itsme809@reddit | sysadmin | View on Reddit | 1 comments

Hi All

Running out of ideas here, implement cert based RADIUS and having intermittent issues list below of everything.

issue:

Two laptops sitting right next to each other one stays connected to the SSID with radius the other disconnects and reconnects every hour or 2 to the same AP

Laptop that keeps disconnecting has a Realtek 8822ce wireless nic with the latest driver.

Windows 11 fully updated 25H2

Disable power management and set roaming to low on NIC

Cert is deployed

GP sets WiFi network

Setup

Unifi AC pro Access points

Controller hosted on hostifi

NPS on Windows server 2022

Fast Roaming enabled

Probably missing info but ask/suggest anything

It’s just strange because some laptops are fine and others keep disconnecting and reconnecting

Some laptops that don’t have issues have the same NIC as others that do have the same issue.

Is this normal for RADIUS?

Any suggestions would be appreciated

[-]

DarkAlman@reddit

That's probably your problem right there.

I gave up trying to implement anything but WPA2 on Unifi ages ago, the product is notoriously buggy for higher level protocols.

Quick bit of googling finds LOTS of issues related to RADIUS implementations with Unifi.

Unifi AC Pro RADIUS (WPA2-Enterprise) issues, often causing intermittent disconnections, failed authentications, or DHCP errors, are commonly resolved by turning off "Fast Roaming," ensuring APs use static IPs, or addressing firmware bugs. For Windows NPS setups, it is crucial to add the APs as RADIUS clients in the NPS console