Are they both set so the networks are "private" instead of "public"? That always has trouble sticking, even when they haven't changed networks. Click to expand... I'll check. I've never understood why ...
If you cannot activate Microsoft 365 on a shared computer, you can use the Microsoft 365 Shared Computer Activation (SCA) Troubleshooter to fix the issue on a Windows 11/10 PC. It uses the Get Help ...