1, it may be because there are induction cookers, microwave ovens and other electrical appliances with magnetic fields next to the router, which interferes with the signal of the router and makes the wireless network unstable;
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2, turn off electrical appliances or put the router in a place with less interference;
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3, it may be the reason for the mobile phone Settings: if the mobile phone is connected to the WiFi, but the mobile phone shows \"the network is not strong, please check the network Settings\";
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4. Click the pop-up warning sign to enter the setting page;
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5. Select WLAN from Wireless and Networks.
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6, after entering, click the button in the upper right corner, select \"Advanced\";
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7. Click \"Maintain WLAN connection in Sleep state\".
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8. Check Always in the pop-up window, so that the WLAN is also connected when the phone is asleep.