1. Check whether it is in arrears: check whether your mobile phone is in arrears or just in arrears. If so, please pay in time, and then restart the optical cat and router equipment.
2. Check the light cat: If the light cat indicator is not on, please check whether the power switch is connected and turned on normally. If you find that it can't light up after trying, you may need to contact Viagra to replace the light cat. If the optical signal (LOS) light of the optical cat is red, please plug in the optical fiber head and confirm whether the tail fiber is bent. If the light cat registration light flashes and the operation method is consistent, you can try to restart the light cat.
3. Check the router: make sure the indicator light of the router is normal. If there is a problem, you can turn off the router and wait a few minutes to restart it.
Please note that the above steps may be slightly different for different operators and regions, and you need to operate according to the specific situation of your location. If you don't know how to operate, I suggest you contact the operator's customer service for consultation.