Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
I just discovered that this does not seem to be compatible with Sonicwall firewalls. I have had several customers that could not get this to work and had to go to great lengths before it did.
I tried bypassing the Sonicwall firewall at this last customer and it worked perfectly with no issues.
I makes me wonder if other firewall devices are causing the same issue.