Live.co.uk incoming server settings changed

My email account [redacted from public] @live.co.uk was receiving mail until 6th August and then nothing. I'm getting a notification to say authentication failed and when I tap it the screen says "checking incoming server settings" and doesn't complete. I'm in the process of changing Web account logins from a talktalk account to the live account as the TT account is attracting spam. Could this have influenced the server settings?

Richard