Why does there still be a wireless signal after unplugging the power supply?

This is just a virtual signal, and although it is available, it cannot be used.

The wireless network root uses the router's "lazy mode one-click setting" to configure the router's Internet access parameters, and if the encryption authentication method is selected "automatic" by default, there may be a problem that the mobile phone can connect to wifi but cannot access the Internetwifi encryption authentication type is selected as "automatic" by default, resulting in the problem Solution: Now that we know that the wifi encryption type is selected by default, "automatic" is selected. Then the solution is also very simple, just manually select the encryption type of WiFi as the most secure and reliable "WPA2-PSK". After restarting the router, all devices will be able to surf the Internet normally.

Speaking of wireless networks.

I believe that everyone is no stranger to it, and with the continuous development of society, in our daily life, there is almost no place that does not provide wifi. However, I believe everyone has such an experience, that is, when the router is not easy to use, generally unplug the power supply, which can solve this problem. So, why can't the router go online, unplug the power supply and power it on, and it can be used normally.

First of all, the router is actually equivalent to a small computer, it also has its own CPU and operating system, and its role is to send signals. When a router is connected to too many devices, it may be beyond its capacity, causing network congestion, and when this happens, a reboot may be able to unblock the network.

But it is not excluded that it is a problem with the router itself, because electronic equipment is lossy, when a router is used for too long, there will be slow stuck, this is due to the aging of many electronic components, so, for this router, reboot can not be improved.

There is also a situation of channel interference, simply put, there are too many wireless users around, interfering with the network, resulting in poor network circulation, if this is the case, it can be used normally after restarting.

In short, for the situation of bad wifi signal, restarting the router can basically solve the problem.

That's because there is still a certain residual signal that has not disappeared

There is still a wireless signal, but it is no longer available.

It's just an empty signal and can't be used.

This is just an illusion, and there is a signal that may not be usable.

This is because it hasn't been broken for a while.

No, this is not the case in my family.

This may be a false signal.

It's just a problem with mobile phones.

This signal is a useless signal.

I think this should be the device hasn't reacted for a while, it's a fake signal.

I have the same problem as you, the wifi is unplugged, I can't connect, but the signal is there, and finally I cut off the power supply of the whole house, this signal is still there, it's haunted, what is the situation?

Only one step check:

Don't use a router, the cat connects to the computer, dial on the computer to see if it can be on, if it can, confirm that there is no problem with the line and the cat; If it doesn't work, the line is not through or the cat is broken, report to the operator for processing;

Connect the router, check the light status to verify that the wiring is okay, log in to set the router WAN port to dial, and see if the dialing is successful;

If the dial-up is successfully assigned to the IP, you should be able to access the Internet, if the dial-up is not successful, check the settings, do not reset the router and then set it up, and then it will be suspected that the router is broken.

Ran into the same problem as you. Recently, I was stuck watching movies at night, so I got up in the morning and turned off the power of the cat and the router, wanting to let the device take a break. Who knows, when I got home from work in the afternoon, I was directly connected to my wifi, and I wondered who turned on the power.

I went to see it, and the power was not turned on, but where did this wifi signal come from? The actual test can only be connected to wifi, and cannot access the Internet.

The Internet is currently the largest WAN. Therefore, the WAN interface on the wireless router is the interface that connects Internet equipment and directly accesses the Internet, and every computer (or other network equipment) on the WAN has one or more WAN IP addresses (or public and external IP addresses), and the WAN IP address can only be applied for after paying the fee at the ISP, and the WAN IP address cannot be repeated. The exchange of data between the WAN and the local area network (LAN) computer is carried out through NAT (Network Address Translation) of the router or gateway.

At present, the WAN port provided by wireless routers is generally 10 100Mbps adaptive RJ45 ports, which can be connected to devices such as XDSL cable modem or Ethernet.

After the router is replugged in, it needs to detect the network condition and dial up again to connect to the network, which takes time depending on the network situation. If the network is fine, you can connect to it by waiting.

This is unlikely unless you power off the switch.

The wireless network root uses the router's "lazy mode one-click setting" to configure the router's Internet access parameters, and if the encryption authentication method is selected "automatic" by default, there may be a problem that the mobile phone can connect to wifi but cannot access the Internetwifi encryption authentication type is selected as "automatic" by default, resulting in the problem Solution: Now that we know that the wifi encryption type is selected by default, "automatic" is selected. Then the solution is also very simple, just manually select the encryption type of WiFi as the most secure and reliable "WPA2-PSK". After restarting the router, all devices will be able to surf the Internet normally.

Step 2: Connect your laptop to the wireless router you bought and enter the routing settings interface.

Step 3: Click the WAN port setting in "Network Parameters" on the routing interface, select "Static IP", fill in the IP address, subnet mask, gateway, etc. given to you by the landlord, and fill in the DNS address into the local DNS. (Remember to save).

Step 5: Click "DHCP Server" in "Network Parameters" and select "Enable", enter the address pool with a different network segment from the IP given to you by the landlord, (for example: the IP address given to you by the landlord is, then it should be set here, the gateway should also be set to, and the DNS address should be filled in with your local DNS) Click Save, OK, and restart the router.

Step 6: Remember that the range of the wireless network card IP should be set to the range of the DHCP address pool you set at that time. The gateway is set to the same route, and the DNS can be set to the same route.

Make sure that the broadband account has not expired and that there is no change of line; Just when the power is off, you can power off network devices such as fiber optic modem (cat) wireless routers for 1 minute again.

If it doesn't work, set up the wireless router again.

Plug it back in and plug it in, and stop for a while to plug in the power supply.

Unplug the power? Who will transmit the wireless signal?

The router also takes time to boot, just like the computer, it doesn't turn on with a whoosh.

After the router is turned off, the wifi is unusable, and the router will not emit wifi signals outward, and the wifi signal may be caused by a lot of wifi signals around.

A wireless router is a router with wireless coverage that is used by users to surf the Internet.

A wireless router can be seen as a device that sends broadband network signals from the wall of your home to nearby wireless network devices (laptops, WiFi-enabled mobile phones, and all devices with WiFi capabilities) through antennas.

Popular wireless routers on the market generally support four access modes: dedicated line XDSL cable, dynamic XDSL, and PPTP, and it also has some other network management functions, such as DHCP service, NAT firewall, MAC address filtering, dynamic domain name and so on.

I'm in the same situation as you just now, I guess it may be that although the power is off, our household electricity is still normal, due to the existence of radio waves, the broadband ** line should still be emitting radio waves.

I'm having the same problem as you, what's wrong, after my router is unplugged, this signal is still there, and even after the power is cut off in the whole house, this signal still exists from time to time, but it can't be connected. The master who installed the net was stunned, saying that he had not encountered this situation for more than ten years!

You this is unscientific, unless your phone shows an error.

Normally, the signal of the cat is not connected, the route starts dialing, and then the connection is successful.

But suddenly unplug the power of the router, the working state of the cat is still connected state, when the power supply of the router is turned on and the dial is started, it is not recognized by the cat, that is, there is no data transmission between the route and the cat, of course, it will not be able to access the network.

Turn off both the cat and the router, turn on the cat first, and wait for the cat's signal light to stabilize before turning on the router.

You try to reset the dialed account name and password.

If the signal is full, it means that the signal sent by the router is normal, and if you can't get on the network, it may be that the router is not set up correctly or the network cable is loose.

After connecting to the WiFi, open the management page of the wireless network, check the connection status of the WAN, if it is difficult to prepare for the lack of connection, the connection or the IP is indicating that the WiFi is not connected to the Internet, and it is naturally impossible to access the Internet. Please reconfigure the connection of the WAN port.