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Method 1: Restart the router, shut down the router, and then restart the router
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Method 2 1 Step 1 Open the Settings and tap Wi-Fi to access the connected network. 2 Step 2 Ignore the network, ignore the network, and re-enter the network. 3 Step 3 Enter the password to join, and reconnect to the network
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Method 3: Long press the power button, slide the screen to shut down the phone, and then turn it on again
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Method 4: It may be a wireless network problem, and you need to call professionals to detect it