signing in to Skype for business from Polycom RealPresence Trio 8800

Just got my new Trio 8800 and i am having the same issue but with logons that use the .onmicrosoft.com UPN. All users on my federated domain work fine, I do have modern authentication enabled for Skype and Exchange on my tenant, but as i said my federated user ids work so I'm not sure that is the issue. Anyone have any ideas why the .onmicrosoft.com domain doesn't work on a fully patched trio 8800? I have enabled debug and i see that the phone doesn't seem to be able to find where to get its auth ticket from, I have also tried hardcoding the discovery as per the mention in this thread. Any help or ideas are appreciated. I have attached debug logs to this post. Thanks again.