Radius validation with Powerconnect switches and Server 2016

We just were mandated to move our servers to 2016 and now radius will no longer work on certain switches. All of our N-series switches work just fine but I have 3424, 3548, and 5448 switches that will not authenticate. I ran wireshark on the radius server and I see it got the request and responded with an authentication valid reply that looks no different between the N-series request and the other switches. The N-series will authenticate and but the other say rejected. Since the server is returning the same thing, I am assuming the issue is on the switches but I have spent days and days trying different settings on both the server and the switches and cannot find anything to make it work.