I have tried with MD5, SHA1 and also SHA256 with not luck, still same error.
I noticed that the IPsec widget one the dashboard only showed 1 tunnel, when it before upgrade showed all 4 so I figured that something where off and the upgraded IPsec settings was fubar.
I deleted all IPsec settings both fase1 and 2 from both boxes, and then created them again (with samme settings, screenshot wise) buy only one fase2 tunnel, and now it works :) I then recreated the last 3 tunnels and it still works, so I guess that there was something in the config files that where upgraded wrong.
The wigdet are still only show 1 of the 4 fase 2 tunnels, mabee that is a bug ?