WiFi connectivity issues

I have a 5th generation iPod touch that I use exclusively when I work out. The gym I go to has free WiFi and I have no issues connecting to it and using all the apps. In the last 4-6 weeks, however, I have been unable to access apps like Pandora or Sirius XM but I do still receive email on the mail app. I am frustrated that I cannot use most of the apps on the iPod touch and am not sure what the solution would be. I have done a hard reset and restored the iPod touch on my computer to no effect. I am able to access the apps on my home WiFi. I'm curious if anyone has any helpful solutions.