FreeRADIUS does not do session resumption. If the supplicant tries to do session resumption, I don't know what will happen. You should ensure that the supplicant has session resumption disabled.
Windows does support it but it's switched off by default and I have verified this
Windows may support session resumption. FreeRADIUS does not.
There are patches to enable this, but they have not, as yet, been integrated. In any case, they won't help you to fail over from one server to another.
I'm not interested in doing fast session resumption, I'd just as soon have the client start fresh every time.
If the Windows client has session resumption enable, *should* notice that session resumption has failed, and re-authenticate from scratch.
I would think it would too, but it does not seem to, even after it is given several minutes to get its act together
I suspect that the issue is "fast session resumption" on the Windows box. Turn it off.
It is indeed turned off
If that doesn't fix it, the Windows client is broken. Try another one.
I'll be happy to try another client - is there one you would recommend or suggest that I try