Why is my computer internet speed fluctuating?

There are many reasons for abnormal network speed, and you need to analyze them one by one.

1. Caused by system failure or virus. Given that you've already reinstalled the system, there shouldn't be any problems, the only thing to watch out for is Luoxue and its variants. This kind of virus reinstalled system cannot be removed, and its most obvious feature is that there will be a user name instead of system in the process, which is relatively easy to judge.

2. The laptop itself fails, and the laptop is affected by its structure, which will lead to overload of the system in terms of heat dissipation and other problems. However, the first thing to do here is to confirm whether the system is running at 100% or near full capacity when the network speed is abnormal, if so, then you can rule out the problem of broadband, but the problem of the computer. Now that the system has been reinstalled, you can basically rule out the virus problem (after reinstalling the system, you should install the anti-software first, upgrade to the latest version and enter the safe mode to check and kill again to ensure that the system is normal).

The hardware can start with the temperature, and if the humidity is normal, there is basically no problem with the hardware.

3. Network problems, if there is no problem with the desktop, then it can be eliminated.

Personal suggestion: I feel that it should be the cause of the virus, you can do a small test, and ping the local telecom (if it is ADSL) host at the same time when the network speed is abnormal, such as Jiangxi.

ping -l 1024 -t If the network speed is the same, then worms can be ruled out, while the system is overloaded is most likely due to other viruses or too many files.

There are many factors that contribute to the slow internet speed:

1. The influence of viruses, Trojans, malware and other factors can cause slow network speed.

2. The parameter setting of machines and network equipment will also directly affect the speed of the network.

3. The quality of hardware equipment such as network cards, network cables, switches, routing, and cables also has a crucial impact on network speed.

4. Internet access, such as peak hours, will also affect the network speed.

The landlord's problem seems to be related to the quality of broadband routing, such as routing crashes due to a large amount of data, or poor routing heat dissipation, etc.

Use the gold mountain first. Guard.

Clean up system junk and malicious plugins.

Repair the system, fix the IE, optimize the system, scan the Trojan to see if you are cleaning it with the Kingsoft first aid kit

There are a few reasons for a slow internet connection:

1. Problems of the network itself (insufficient server bandwidth or excessive load).

Second, the network cable problem leads to the network speed slowing down (the twisted pair cable is not up to standard, which is manifested as: one situation is that the network speed is very slow when you first use it; The other scenario is that the speed is normal at first, but after a while, the speed slows down).

3. There is a loop in the network, which slows down the network speed.

4. The network speed is slowed down due to the broadcast storm caused by the hardware failure of the network equipment.

5. A bottleneck is formed on a port in the network, resulting in slow network speed.

6. The influence of worms causes the network speed to slow down.

7. Excessive use of firewalls.

8. Insufficient system resources.

Slow network speed is mainly caused by the above reasons, I personally recommend that you first clean up the junk process of the computer, optimize the system, and the Trojan horse is also a pest!

2. Check whether the twisted pair is qualified.

3. Use the method of gradual elimination by partition and segmentation to eliminate circuit faults.

Fourth, use the "ping" command to test the computers involved one by one under DOS, network cards, hubs and switches are the most likely to fail and cause network speed to slow down.

5. Change the server NIC to 100M or 1000M, install multiple NICs, divide multiple VLANs, change the router configuration to increase bandwidth, etc.

6. The anti-virus software used must be upgraded in a timely manner; Computers should also be upgraded and installed in a timely manner, while uninstalling unnecessary services and closing unnecessary ports to improve the security and reliability of the system.

If you can solve these problems, your internet speed will be faster!

The problem of network operators is that the current home network is using shared broadband, when the network is used in a low installment is your network speed can be guaranteed, but the peak period of network use can not guarantee the normal network speed, especially when the Internet is 8 to 10 days, everyone likes to watch movies on the Internet after eating, but it is worth learning the Internet speed is quite slow.

The reason for the router is that the router works for a long time, which can easily lead to unstable network status and even network disconnection, at this time, you only need to power off and restart the router and wait for a period of time to recover.

How to solve the problem of slow network speed and sluggishness of the electric hood.

Try to choose a time when there are fewer people, for example, many people are on the same road, and it is also very crowded.

Other situations. 1. There are viruses or Trojan horses

It doesn't have much to do with the system. It is possible that the network speed is normal during peak hours, and it is possible that the network speed is limited by others.

It has nothing to do with the computer, you check your internet speed and install a speed test software.

In the official ** test of telecommunications, dial 10000 if there is a problem