No iPad wifi connection only at Starbucks

I have never had trouble connecting with WiFi at my local SBX until early this week. They have no report of problems. I am fully updated. The option to choose the SBX WiFi comes up. I choose it. Nothing happens beyond the acknowledgment by the iPad that I chose it. There is no indicator at the top of the screen indicating contact with the router. Nothing happens. I can’t force a landing page to appear by typing in a URL because I’m not connected. I have no trouble connecting anywhere else. Not even at the restaurant in the same parking lot. I have no trouble with my iPhone.