We have a HTC Titan X310e device with Windows 7.5 Phone. We keep getting certificate error: 80072F06.
We tried to create a self signed certificate (How to configure your mobility server to use a self-signed cert for testing purposes - CoolSolutionsWiki) and imported the CER on the device with no luck.

Google gives tons of hits on this error against Microsoft ActiveSync but we didn't find the solution yet

Any tips how to get mobility working on a Windows 7.5 phone?

Kind regards,

Menno Bos