My organization recently upgraded to SP2103 while my internal facility still uses SP 2010. I installed SPD 2013 side by side with the 2010 version still intact.

The issue is I can no longer open sites with 2010. The designer asks for credentials upon loading and only accepts my admin credentials. Once open, I get the same behavior when opening a 2010 site, but this time it won't accept any credentials. It also locks my account. *Note: I use smart card for authentication.

If I try SPD 2010 (single install) on a different system it works as expected without prompting for credentials.

Win 7

Office 2007

SPD 2010 & 2013

Project 2010

VS 2013 Post problem install

Thoughts?

Ken

• Edited by Beruken 17 hours 45 minutes ago update credentials definition.