This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
UPDATE: I was forced to clear my OS and start over. Recovering from Time Machine brought over too many support files even when being picky. I have re-installed Teams from an old installer in a previous Time Machine entry and I am able to log in. This may not last though. This was obviously extreme and I hope you all do not have to do the same.
Teams for Mac recently updated and totally broke the functionality of Teams. I do not have connectivity to my work account at all. I had deleted all Teams file on 8/8 and reinstalled the Teams Classic which worked well. I came back to my computer later that afternoon and the new Teams had reinstalled itself. I went out of office until today and I have a repear error of "We couldn't authenticate you. This could be due to a device or network problem, or Teams could be experiencing a technical issue."
This is a Teams technical issue due to the repetitive error and my ability to sign in via iOS and web with the same credtentials on the same network, and in once case, the same machine.
Teams version 24193.1708.3043.1759
Client version 50/24071128823
Using Microsoft Teams on macOS, including installation, features, and compatibility
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Ugh....so about an hour after I posted this I got the authentication error again (Teams and OneDrive). So whatever the problem is, it's not solved yet.
I did a clean install and found the installer for Teams Classic. So far so good. It goes dark in 28 days though.
Edit: Clean install of the OS.
I have the same issue. However when I go into the library and application support/Microsoft, all that pops up is a folder called vcxpc
It worked after I logged out and logged in.
This is just a temporary fix since the issue will usually return after a day or 2, sometimes sooner. This seems to be a bug and Microsoft needs to provide a fix.