Yealink T27G Not Working With 802.1x Auth After 3cx v14 to v15.5 Upgrade

[KM Tire IT Support]

I want to post a followup on this to anyone who may see this thread. The 3cx upgrade was just a coincidence. The last batch of T27G phones that got ordered now have different starting digits to the MAC address. I had to update the NPS policy using the Call Station ID. But when I updated it I could not add a 2nd Call Station ID to the policy. I had to edit the original one and update the regex to include both of them. I ended up using the expression 00-15-65-?|80-5E-C0-? to include the format for both MAC address types.