Using classic Outlook for Windows in business environments
Went on live chat and requested a call back to they can get into my computer to fix the issue.
I talked to Microsoft Support on Feb 6, 2025. They took over my computer via remote access and determined they could not fix my problem. After almost an hour of trying, my MS support agent put me on hold for about 5 minutes and then came back and told me that an Outlook server update had broken the interface between Outlook and Spectrum email. He said to wait 24 to 48 hours to allow their Outlook server fix to be installed and then to try Outlook again. But it has now been 48 hours and I still can't log into Spectrum email from Outlook.
Have you tried logging into Spectrum email directly from the Spectrum website. I can get in that way for the time being. The last time this happened to me it was also a Microsoft Outlook server problem, and it took 8 or 10 days before Microsoft fixed the problem.