Bummer, only my iPad can't connect

Once a week, I go to a place of business, a new building with free Wi-Fi available to all. Everybody that I've met has been able to connect easily. In my case, only iPad owner, I clearly get a strong signal, but once I reach the page 'click for access' (no need for a PW) I get a blank login page. A bit embarrassing.

On ground level of the same building, there is a restaurant with free access through another network. iPad connects perfectly.

Could it be an issue only with the iPad?

Ant advice/suggestions would be greatly appreciated.

Thks!

@ nixie great point, you might be on to something here. I get that blank page (but usually not a login page) waaaayy too often - with no damn messages. Oh boy ....