Comcast offers cable Internet, TV and voice service for United Sates customers. They the biggest cable suppliers in US, occasionally one can face problems with service. Troubleshooting Comcast issues involves contacting them on telephone, but before that, try and solving issues on your own.

Cable TV Reception issues

• Mostly, reception issues happens cause of wires or other connections loosening up, or connected wrongly. To solve these issues, check wires and power cords for TV, cable box and any other connected devices, and ensure that they are in working condition and connected properly. If having cable signal running through an external device before it entering TV, try connecting cable modem to TV directly, in case external device is creating issue. If still not able to solve reception issue, contact Comcast, as there might be an issue with wire line.

Phantom Phone Ringing

• One might face problems where phone rings, but when picked up, nobody is on other side. This happens when a phone call was made earlier that did not disconnect completely. This can occur when the call was made to voicemail or tried disconnecting a conference call, and did not finish the call hanging up. To fix this issue, completely hang up phone, and if required, reset power on the digital voice modem.

High-Speed Internet issues

• If Internet connection is slow or down totally, try resetting modem by pushing and holding the reset button while detaching power cable, then insert power cable back in and release button. This will remove cache on modem, and it will try connecting to network. Also reboot PC, in case the issue is with PC and not cable modem. If this does not crating connection to work properly, contact Comcast phone.