The computer is running and the network is disconnected for no reason

First, the CMOS battery on the motherboard is out of power. The chassis can be opened. Replace the CMOS battery with a new one.

CMOS battery, generally like a twist buckle, battery) Second, there is a Trojan virus in the system First, restore the system and shut it down. Right-click on my computer and select Properties. System Restore, options.

After extracting the compression, run the "Register" folder in the folder. reg" file, import the registry, i.e. the registration is complete. Then, run the folder in the iparmor, Trojan Killer master program, and you're good to go.

That's it. You can do it in the shared information of iQ**: Trojan Detection and Killing Tool - Defendio Real-time protection, comprehensive killing of more than 110,000 kinds of Trojans spy worm ad malware, including memory, registry, network and file scanning, including file system, system process, system memory and other system real-time protection, support NTFS data stream, zip gzip tar rar cab jar and other compression formats, zip cab rar generated executable self-extracting format, CHM (Compressed Help Files), Mail (EML), Mailbox (Outlook Foxmail), etc. **Later, unzip and run the defendio folder Then, click on Scan on the top left, click on All Hard Drives, and select all on.

Clean up the system.

Generally speaking, this is a relatively common problem.

Anti-virus method: Open 360 Security Guard, click on the function of the whole system, click on the 360 system first aid kit, start the first aid, and under the strong mode process management full disk scan all these 3 selections and then click to start the first aid.

Second, the problem of cats and broadband lines will also appear in this situation, call ** to the broadband maintenance staff. Or try to change the cat yourself, in this kind of problem is not too sure, you can go to a friend or colleague to borrow the cat to try.

Third, the motherboard network card problem, or the motherboard network card chip problem. If there is a warranty, it is best to take the warranty, if not, it is recommended to repair the motherboard, or buy an external network card, if the landlord is generous, you can buy a new motherboard I suggest that the landlord first call the broadband maintenance personnel to determine whether it is a problem with the cat and the line, if there is no problem in the computer store to repair (why call the broadband maintenance personnel first, because the landlord you have too many uncertainties in this problem, if you get the computer store, it is generally the first to reinstall the system, no problem is the best.) If you take it back, it's still the same, and in the end it's a problem with the cat or the line, and it takes a long time to trouble and spend money.

Check for yourself I use the troubleshooting method:

1. Hardware peripherals.

First of all, change the network cable to see if your network cable is too old and aging? If it doesn't work, try to change the modem, or if it doesn't work, call ** to telecom, and ask if the line is out of order because of the Spring Festival; Or simply ask your neighbors, and if the situation is the same, you can be sure that it is a network problem.

2. Hardware computer.

Take a look at a different computer, if you can get on it, it's your computer's problem.

3. Software problems.

Could it be that you have been infected with a virus or installed some software that conflicts with the system, restart the system and press the function key F? , each computer is different, basically F8 or F12, choose the safe mode to bring the network in, connect and see. No, you can reinstall the system.

Organize the computer.,If you use it for too long, there will always be such and such problems.,If you're lazy, use 360 or Kingsoft Guardian or something to fix it.。

When using an Internet multi-line chat network, a disconnection is a loss of contact between two IRC servers. As a result, one party chatting suddenly sees the other person disappear.

Why don't you restore it?

The exclamation mark is the reason for the limited network, it may be that there is a problem with the network card driver, resulting in a bad connection, or it may be a router IP conflict, that is, there is the same IP in your network segment, and there is ** one of them is interrupted, resulting in incomplete data transmission.

After upgrading to win10, my notebook also encountered this problem, and then asked for help in the forum, saying that it was a bug of the win10 network card, I used a network card patch, and everything worked fine after installation. You leave a q and I'll send it to you, and you can solve this problem after installation.