1. It may be caused by the IP address conflict between the trunk router and the primary router. Login and broadband cat connected router. (1) Set \"SSID number\" and \"Channel\" in wireless Settings - Basic Settings to set fixed channel number. (2) Set wireless signal encryption information in wireless Settings - Wireless security Settings, and record the SSID, channel and encryption Settings of the wireless router after setting.
2, router aging, when the router is used for a certain number of years, the speed will decrease, and even automatically often cut off the network, and other problems, which is also a drawback of all routers, it is recommended to replace a router.
3, the use of time is too long, the built-in mainboard module overheating caused by line loss. Restart the router's initialization Settings and we'll be connected.
1. The SIM card is in poor contact. Solution: Unplug the SIM card to check before inserting it.
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2, external electromagnetic interference. Solution: Stay away from distractions.
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3. External buildings block the signal. Solution: Get out in the open.