I have been struggling to get Live Writer to login to Blogger so I can publish posts like this one. Every time I tried to publish I got a login failure.
The answer was simple. I have changed the security on my Google account to use 2-Step verification, something an application like Live Writer can’t do. The answer is to use ‘App passwords’.
A full explanation can be found here: https://support.google.com/accounts/answer/185833
I added an App password for Live Writer and everything works again.
Update 21/12/2015
If you’ve been using Live Writer it’s now time to move over to Open Live Writer. This integrates nicely with Blogger.
“Today is the day. An independent group of volunteers within Microsoft has successfully open sourced and forked Windows Live Writer. The fork is called Open Live Writer (also known as OLW) and it is part of the .NET Foundation and managed by this group of volunteers. Read the fantastic announcement at the .NET Foundation Blog! Download Open Live Writer now!” [1]
[1] Announcing Open Live Writer - An Open Source Fork of Windows Live Writer, Scott Hanselman.