Why am I unable to logon to a specific wifi?

My BB10 and I have never had a WiFi issue until I tried to log onto a certain WiFi in a particular coffee shop.

I get to the password entry--and I enter the simple password correctly. A network problem error message appears.

Other phones in the same shop at the same time have no problems logging on.
In case I was making a stupid error repeatedly, a store employee tried to log in. She said that she did it exactly correctly, and the same network error message appeared. MY OS is 3062. Rebooting did not help.

How can we fix this? What can be causing it?

I think its that os that there was a few problems.

I'll delete the offending wifi profile and try again. I'll let you know.