Miner's plug-in cable is useless

1. Hello, I'm glad to solve the installation monitoring, installation and maintenance problems for you. According to your description, there is no problem with the camera and the power supply, so it is a problem with the wiring. First of all, check whether the two lights of the camera connector are flashing normally, and use the wire tester to test whether the network cable between the camera and the video recorder is connected normally. In this case, it is most likely that the line is not connected properly, the crystal head is not pressed properly, or there is a problem in the middle line. After careful investigation, the problem is solved. If you don't know the details, please ask me in private at any time. Hope ~ ~.

2. 1) If it is the problem of broadband itself, first directly connect the broadband cable test. If it is the problem of broadband, contact the broadband customer service to solve it

2) if it's a problem with the router, if it can be used in the past but can't be used temporarily, my own practice is to cut off the power supply of the router and plug it in. I'll see later. If you have it, you can restore the factory settings and set it strictly according to the manual. You don't understand it and don't recommend setting it at will (this is caused by the slow or failure of the router to find the IP address under the premise of correct physical connection, not that the router is broken)

if it can't be solved all the time, it's recommended to call the customer service of the router. They have telephone online guidance. When I encounter problems that I can't solve, it's very useful to consult them. They will give correct suggestions for your setting or operation

3) if you turn off the wireless switch, just turn it on. If you use software to connect to the wireless network, it's normal that the software is not easy to use and often has problems. There's no better way. Use a router. In addition, it is caused by the network card driver is not or not suitable, whether there is a problem with the network cable interface or network cable, etc

4) if it is caused by system problems, it is recommended to restore the system or re install it.

3. I think the probability of this problem is as follows:
your cable network port, your other end is not connected to the network,
or not plugged into the routing interface,
I hope it can help you

4. There are several reasons why the network cable is inserted into the network port and there is no response
1. The network cable is blocked, and there is a breakpoint in the middle
2. The switch or router on the network cable is not connected to the power supply
3. The crystal heads at both ends of the network cable are faulty
4. There is no network in the router or switch on the network cable
note: it's better to start from the host computer and look up one level at a time
solutions:
1. Connect the breakpoint or replace the network cable
2. The router or switch is connected to the power supply
3. Replace the crystal heads at both ends of the network cable
4. Reset the upper router to access the network.

5.

There are three possibilities in the case that there is no wired network card in the device manager:

1. The system does not recognize the network card

because the network card is not recognized by the system, that is, the network card is not registered. The solution to this situation is:

run Regsvr32 netshell.dll, Regsvr32 netcfgx.dll, Regsvr32 netman.dll

as shown in the following figure:

3 The network card is broken. The solution to this problem is to repair it

6.

There is a problem with the computer configuration. The solution is as follows:

1. First, right-click the network connection icon on our computer, go into the Ethernet, and then click Network and sharing center

7.

Check the network status logo in the lower right corner of the computer to judge:

1. If the cross status is displayed (as shown in the figure), it means that the network cable is not plugged in well, indicating that it is a physical fault, that is, the connection between the network cable and the network card is disconnected

1. Check whether the network cable is loose, damaged, etc. it is recommended to replace a good network cable and try again

2. Check whether the LAN port connected by the network cable from the router / switch is loose or damaged, and try to replace more LAN ports

3. The network card of the computer may be out of order. Although this is not very common, it does not rule out the possibility. Generally, the first two items can be solved by checking first. If the network cable and LAN port are replaced, it is not effective, so it is necessary to check the quality of the network card

2. The yellow exclamation mark is displayed on the network status identification in the lower right corner of the computer

1. Check whether the computer's IP address is a fixed IP address, which leads to a conflict with the line, and try to "set IP to automatically obtain IP address"

or consult the network management and set the IP segment corresponding to the line

2. Check whether the driver is installed or complete, and upgrade or install the driver again

8. There are many reasons why there is no signal
1. The cable itself is not connected to the Internet
2, the network is in arrears
3, there is a problem with the network cable
4. There is something wrong with the computer
5, there is a problem with the router.