If you have AT&T as your home ISP and have issues connecting to the service, turn this setting off so AT&T stops filtering your traffic and blocking the app.
1 – Login to your AT&T Fiber account at https://cprodx.att.com/cmp/cmpportal/
2 – Select “DNS Error Assist” at the bottom left –> https://i.ibb.co/fXDDx7r/att1.png
3 – After the next screen loads, turn “Allow use” to OFF –> https://i.ibb.co/30LqRhQ/att2.png
Changes can take up to 24–hours, but AT&T will now stop filtering your traffic and blocking the App/TV Guide from downloading.
One other AT&T setting to check and deal with. AT&T made a change recently that affects IPTV connections. You will need the AT&T Home Manager app and navigate to App Preferences and toggle off the “Enable Security” setting.
If you continue to have an issue have the customer reboot the modem and change the password on the line.
