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If you buy a monthly card online, first check whether your network card has expired.
If it's not the network card reason check the line, or put the router.
Try to restore factory settings (generally there will be a reset button after the router, unplug the device, press and hold the reset button, connect to the power supply, release the reset button after about 5-10 minutes, and the reset is successful).
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You can restart the router and see if the interface is loose.
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Can you get on the router without setting it up, and you have to enter your broadband and password inside.
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Set it up according to the routing manual
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Dial-up connection alone can be on, proving that the telecom network is open, and the probability of being blocked by telecom is generally very small, I have a friend who does it in telecommunications, and he said that the general self-employed will do it if they want to block the IP.
It is recommended that you first determine whether there is a problem with the cable, restart the router, let the parameters in it be in place, and then refill in your network account and password, and remember to write the DNS address (to fill in according to the local DNS, if you don't know, you can consult Foshan Telecom).
Then write the IP address (and default gateway and DNS) in the network settings of a machine, try to use a router to access the Internet, if you can, prove that your router is set up correctly, and then connect the other computers as well, I think this should be fine.
Don't change routes until the end.
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It can't be telecom blocked, if you haven't changed anything, it may be that someone else has set up MAC filtering or IP restriction in your route, you can reset it and change the password to WPA2.
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Aren't there a few special dials, you can try them all, maybe you can use them.
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Query your IP address and gateway.
If the gateway is successful, it means that there is no problem with surfing the Internet.
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I've been like that sometimes before. Unplug the network cable and plug it in, or restart the router. I've been like this every time before!
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Fill in the DSN in your local area.
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