Recently the company has 2 PCS have a similar problem, the computer will be broken network, in the process of using the lower right corner shows yellow exclamation mark is not the kind of ICONS didn't plug cable
To change the adapter configuration will find not disable the disable the local connections, can open the properties for the local connection, but cannot be closed, after open the window, no response, only to restart the computer to restore network,
Could you tell me the problem is network card hardware or system driver problem?

CodePudding user response:

Can try to more the nic driver

CodePudding user response:

Perhaps the Hub or the Route has a problem,

CodePudding user response:

Using the Windows look network diagnostic features, general is a software problem

CodePudding user response:

First step, the detection line, try switch to find other computer cables, it is possible that the network device or interface problem,,
The second step, reinstall the system, may be system or driver problem,
The third step, replace the network card, try to find a wireless network card,

CodePudding user response:

As the network card problem,

CodePudding user response:

Change again do you have any questions make sure switches, crystal head test line, change the nic driver again, can't change the CARDS (built-in or USB), finally only reshipment system (reshipment system is too much trouble)

CodePudding user response:

First step, the detection line, try switch to find other computer cables, it is possible that the network device or interface problem,,
The second step, reinstall the system, may be system or driver problem,
The third step, replace the network card, try to find a wireless network card,

CodePudding user response:

Redo cable crystal head first

CodePudding user response:

If it is good to restart, the problem may be caused by the software system, try the 360 fault diagnosis

CodePudding user response:

Check the cable first, and then considering others

CodePudding user response:

Network card is broken, change a, gigabit about 30 yuan,

CodePudding user response:

Cable or network card

CodePudding user response:

Can try operation
Computer - & gt; Management - & gt; Device manager, scanning again after unloading nic hardware changes for card, may be able to fix the problem

CodePudding user response:

1, to detect the state routing DHCP open or closed, try to set static IP address to the client,
2, confirm whether exist in network IP conflict, (the client is more, complex environment, consider dividing VLAN,)
3, line meter check whether the cable line is normal, (crystal head problem caused by the fault phenomenon is relatively common,)
4, switches in interface test observation, determine whether there is a problem, an interface
5, the mainboard to install a PCI or PCI - E card, test whether onboard nic,

You can think of is that temporarily,

CodePudding user response:

reference 14 floor worm leading man replies:

1, the detection of routing DHCP open or close state, try to set static IP address to the client,
2, confirm whether exist in network IP conflict, (the client is more, complex environment, consider dividing VLAN,)
3, line meter check whether the cable line is normal, (crystal head problem caused by the fault phenomenon is relatively common,)
4, switches in interface test observation, determine whether there is a problem, an interface
5, the mainboard to install a PCI or PCI - E card, test whether onboard nic,

You can think of is that temporarily,

Suggest use wire gauge measuring first rolled off the production line, from the point of your description, line or crystal head for the probability of a larger problem,

If you don't have line instrument, directly from elsewhere to pull a thread to test first, the best is in use, make sure no seen similar problems on the machine line,