I have posted this before but will do it again anyway. There are ten channels on my tv that I periodically go out with the code 225. I am paying for these and it is rather irritating. Have already called Xfinity and was told it was something on their end and it had been fixed. Wrong- This has become a daily thing and I think I need to contact someone else. Gentleman I spoke with was very polite and had a beautiful accent, but, unfortunately, he was very hard to understand. Soon I guess I will start deducting amounts from my bill as I am paying for something I am not receiving. Thanks for reading my vent.
"Code 225" and similar messages are generated by digital adapter boxes when the signal for the channel you are trying to watch is too weak or has too much noise. This might be because of a bad box or a problem at Comcast (check https://customer.xfinity.com/, 1-800-Comcast voice response, or the "My Account" app) but is most likely due to a poor connection between the box and Comcast's network.
Troubleshoot by checking all connectors and looking for damaged coax cable. Running the cable through a surge protector, a defective splitter, or too many splitters can cause signal problems as well. If there is an amplifier in the line make sure it's getting power.
If you can't find the problem, call them at the phone number on your bill or 1-800-Comcast, or chat with them using one of the "Trouble" options at https://www.comcastsupport.com/chatentry/. Ask them to check the account setup and send a refresh signal to the box. If they can't fix the problem remotely, insist they send a tech out to identify the cause and correct it.
If the tech finds bad coax, splitters, amplifiers, or connections in your home (even if Comcast originally supplied them) you'll probably have to pay for the visit unless you have or sign up for their Service Protection Plan (https://www.xfinity.com/support/account/service-protection-plan/, about $6/mo) and keep it for at least 60 days. If the trouble is due to a faulty Comcast digital adapter or anything outside your home, you shouldn't be charged.