If you use Unicom broadband, your mobile phone can't connect to wifi. There may be the following reasons:

1, broadband is overdue or expired, and it needs to be paid or renewed in time.

2. The network cable is loose, so both ends of the network cable should be plugged tightly.

3. If the device is used for a long time, you can turn on and off the Internet devices such as light cats, routers and mobile phones and then restart.

4. If the above methods cannot be restored, it is recommended to contact the local customer service hotline staff.