If you have protected browsing enabled, turn that off - if you are ok with that.

If you are working with Comcast to get them to be ok with our proseries.com domain with protected browsing enabled.. great.  But I would just expect them to need to know the domain (proseries.com). I'm not sure how port comes into play.  If you have a technical contact, email details to proseries_engineering@intuit.com and I can have my IT person work with them.