Emby Premiere OK on one pc but not another

[Traction Tim 11]

So I have a lifetime licence for Emby, and it is running on my Synology DS920+ NAS. When I view Emby on my pc (Win10), it shows the Premiere "gold coin" on the dashboard, and all is well. If I log in as my wife, all is well.

If I then go to my wifes pc (Win10) on the same LAN then neither my wife or myself appear to have Premiere and there is no gold coin if I look at the dashboard. This is Emby on Chrome and Emby Theater. If I go back to my pc, all is well.

I'm guessing a firewall or Malwarebytes type issue, but do you have any ideas before I dig in ?

[GrimReaper 4740]

Does your wife's PC have Internet access? If it does then yes, something is blocking its validation. 

Edit: If you go to Settings>Emby Premiere tab from that PC, does it show your status? 

Edited May 4, 2023 by GrimReaper

[Traction Tim 11]

Been a little busy getting HVAC installed. I had rebooted her pc to find the same issue, but the next day Emby worked normally which rules a lot of things out. I will check again tomorrow, thanks for the response