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Several users have also reported that their Messages app fails to start up at all on Big Sur.
#Messages on mac not syncing mac os
Just go to the wifi icon, click Network Preferences, unlock the padlock, enter your Mac OS user account password, click Advanced, select the Proxies Tab and then untick Auto Proxy Discovery. Check proxy settings: In case other apps and sites are not working for you at all along with iMessage, make sure that your proxy settings are proper. Make sure to let them know you’ve tried SMC, PRAM resets, because they will suggest that and effectively end the chat while you reset.ģ. They unlocked it and I was instantly able to sign in to iMessage and FT. I finally contacted Apple Support and they said my MBP was locked out of iMessage server-side. In this case, your best bet would be to directly contact Apple. Get iMessage unlocked from Apple: It could be possible that Apple, for some reason, has blocked iMessage functionality on your PC. If you are one of the users facing this annoying issue, then try out the workarounds given below.ġ) Go to Messages app – Preferences – uncheck iMessage on cloudģ) Sign back in with your Apple ID passwordĢ. This happens even when the user is already logged in globally with their Apple ID. And after login, the app simply closes on its own and repeats the prompt. Users facing this issue report that upon launching iMessage, the app prompts the user to login again. I thought it would be fixed in a patch, but there hasn’t been a patch since Big Sur came out.
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Even restarting the Mac, and not using it for a few days didn’t fix my issue. I re-installed macOS Big Sur, and it did not resolve my issue. I am having the same problem, after I updated I was not able to sign in at all, I sign in, and about a few moments later it prompts me to sign in again. IMessage sign-in issues after Big Sur 11.1 update Source
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