How can I verify if that was the case? The SFP+ port on the primary switch still shows as enabled: I've also tried multiple SFP ports on the secondary switch to no avail.  The primary switch is set as bridge priority 4096 in switch settings. All other switches would have default bridge priority.  ... View more

I assume the MR can ping the RADIUS server.   Try a simpler RADIUS secret.  I have occasionally seen a RADIUS server configured with a secret and it couldn't support some of the characters in that secret. ... View more