added new site getting redirect error…

Hi there,

I added a new domain/site to my WordPress multisites install… the domain “a” records were pointed from the registrar ( Network Solutions ) to my web host… once the domain propagated and was working ( successfully pointing my server ) I added the domain in the domain mapping plugin as all my other sites… I am getting a redirect error ( if domain is selected as “Primary” ), but if “primary” is left “unselected”, it redirects to the sub-directory and displays correctly…

EX: if “primary” is left “unselected”, when you try to access https://www.myaddonsite.com it gets properly redirected to:

https://www.mywordpresssite.com/myaddonsite

but if “primary” is selected as it should, when trying to access
https://www.myaddonsite.com you get a redirect browser error

any ideas?