1, cable TV set-top box and TV connection line loose, poor contact resulting in loss of signal, you can check the connection line, reconnect correctly, fixed can;
2, the user misoperation, the signal source of the TV switch to other modes, resulting in no signal display, you can press the signal source key of the TV, switch the signal source mode one by one, until the cable TV picture is restored;
3, external cable TV signal transmission line failure or service provider server failure caused by signal loss, need to wait for the service provider to repair before returning to normal;
4, the set-top box or TV hardware failure causes a sudden loss of signal, need to contact the corresponding after-sales service for maintenance to solve.
5, there may be a problem with the local signal transmission, you can call the local TV station phone, ask the other party is not a problem with the line. Ask for a home inspection of the line.
Answer: There are many cases of this and they need to be treated differently
First, if it is IPTV, check whether the broadband arrears, because the broadband arrears will stop, IPTV is a package year, there are a few days of grace period.
Second, check the optical cat to the router connection network cable, if there is no optical cat, check the wall jack and the router connection line.
If you can not solve it by yourself, it is recommended to call the service provider's maintenance phone and ask professionals to solve it at your door.
There is no IP address assigned to the network TV, the same broadband machine, you want it to automatically search for IP, it is adjusted to this setting, if one is set to static IP, the other should also be set to static IP, the router's DHCP function should also be turned on.
Cable TV does not need the Internet, no connection to the Internet, there is no network signal.