FIX/WORKAROUND BY USING MULTIMC LAUNCHER (HAD TO UPDATE TO JAVA 17)
ISSUE
Same issue here, Windows 7 system. Bought Minecraft Java Edition around 2017, migrated 2021. No issues until the last 2 days.
"Can't connect to Minecraft services" error in launcher. First it displayed "Play offline" option, today shows "Play demo", no longer recognizes that I bought Minecraft even when logging in to Microsoft succeeded. (fixed using the workaround above in red)
ATTEMPTS AT FIXING (NO SUCCESS)
Logging in/out, restarting the launcher, reinstalling Minecraft, removing all third party Minecraft clients, restarting PC, restarting router, switching Minecraft accounts, switching to a different computer, PC malware scans.
FIX/WORKAROUND BY USING MULTIMC LAUNCHER (HAD TO UPDATE TO JAVA 17)
ISSUE
Same issue here, Windows 7 system. Bought Minecraft Java Edition around 2017, migrated 2021. No issues until the last 2 days.
"Can't connect to Minecraft services" error in launcher. First it displayed "Play offline" option, today shows "Play demo", no longer recognizes that I bought Minecraft even when logging in to Microsoft succeeded. (fixed using the workaround above in red)
ATTEMPTS AT FIXING (NO SUCCESS)
Logging in/out, restarting the launcher, reinstalling Minecraft, removing all third party Minecraft clients, restarting PC, restarting router, switching Minecraft accounts, switching to a different computer, PC malware scans.