1. Open the phone Settings and select Wi-Fi.
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2. Then, see the wifi signal that is currently connected, click the small blue circle arrow on the far right.
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3. Click \"Ignore this network\". Then, the phone's wifi connection will be disconnected, so that when you click again to connect the signal source, the phone will not automatically connect, but to re-enter the connected wifi password, that is, the phone will re-identify the network, so that you can empty the original network configuration.
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4. Of course, if you want to clean up a little more thoroughly, you can turn on Settings -- General -- Restore and select \"Restore Network Settings\". In this way, the device will restart, after the restart, all the previously connected networks will not be saved, but identified as the new network, you need to enter the wifi password to connect.
There are several possibilities:
1, telecommunications optical cat out of two interfaces, a digital TV port, a broadband port, broadband port connected to the router, TV can see that the telecommunications line is no problem, that is the router problem.
2, there is a problem with the connection of the line at home.
3. The account is overdue, or the password has been changed.
The reasons are as follows.
Use the mobile phone to log in to the route, and then enter the route for dial-up Settings, and then save the exit can be in case of doubt; Broadband TV can be seen, but the wireless network can not be seen, how the network TV can be seen, indicating that the router receives the TV, there is no problem wifi can not be on, it may be the mobile phone problem, and the wireless network may not be opened.