DirecTV app not working on my new iPad

DirecTV app works perfectly on my old iPad, iPhone....... Got the new iPad Air (2019). I can’t get the DirecTV app to work correctly. I have the settings IDENTICAL to old iPad. Network, etc. reinstalled app several times. I can log in. I can get live tv to work occasionally. Why won’t it work consistently like on my older devices? Everything else seems to work fine on new iPad. I get error 2100, which is check network connection. Same network, WiFi is strong, etc...... any ideas?