We had this problem today—aka.ms/remoteconnect said we had successfully logged in and the Switch appeared to log in fine, but then a few seconds later we got the 'Failed to login' message on the Switch and we were signed out. I followed Alan Sherman's advice from a few posts above:
I logged into my daughters Xbox account at https://account.xbox.com changed the profile picture and background colour, and saved the changes. After this, I logged in via https://aka.ms/remoteconnect again, and the Switch stayed logged in. No idea if it will last until tomorrow, but my daughter is happy now.
Henry Bourne
We had this problem today—aka.ms/remoteconnect said we had successfully logged in and the Switch appeared to log in fine, but then a few seconds later we got the 'Failed to login' message on the Switch and we were signed out. I followed Alan Sherman's advice from a few posts above:
https://bugs.mojang.com/browse/MCPE-34662?focusedCommentId=800132&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-800132.
I logged into my daughters Xbox account at https://account.xbox.com changed the profile picture and background colour, and saved the changes. After this, I logged in via https://aka.ms/remoteconnect again, and the Switch stayed logged in. No idea if it will last until tomorrow, but my daughter is happy now.