sandbetweenmytoes

Went out caching today, and while the app gives me my gps current location, it won't find nearby geocaches, tells me I have a communication issuer, There was an issue connecting to Geocaching.com, please try again! I have been trying for 7 hours, wasted a day out as I couldn't get to anything. I re-booted my iphone, I have a solid 4 bars, everything else works, email, on line games, etc., but won't find caches!!!! What's up????