Computer network latency What are the reasons for the unstable ping packet

Analysis of the causes of network delays.

Whether it is the overall network environment in the LAN or your own computer, try not to carry out ** programs, once you use ** programs, there will be a situation of preempting broadband resources, which will seriously cause the delay of all computer networks in the local area network.

Computer processing tasks also have a priority, computer online games or web pages and are ** programs to seize broadband resources, then there is a situation where the ping value is high and low, that is, the network is often delayed, until one of the programs exits.

Network latency caused by DNS servers.

Whether you are using Telecom or Unicom, or any line such as Tietong is a DNS server, DNS servers are generally used to resolve domain names, and it is generally best to use the default DNS server is the best.

Network latency caused by line maintenance.

Sometimes, local broadband line maintenance and the like can cause dropouts or severe network delays.

This situation cannot be solved particularly well, you can call the local broadband ** business consultation.

Network latency caused by peak network hours.

If you are using cell broadband or something like that, it is normal for the network to lag during some micro-evening Internet hours.

This kind of problem cannot be solved, and it is very likely that it is a small network business problem, and you can replace it with a better network business.

Network latency caused by servers.

1. ** or the network game server is being attacked, resulting in network latency. (If you can't solve the problem personally, you can contact the server administrator).

Network latency workarounds.

Step 1: Turn on the Traffic Firewall of 360 Security Guard.

Step 2: Click the "Speed" column in the open "360 Traffic Firewall" program window to sort, you can find which process the current computer is in, and then end or limit the speed.

Note: The remaining steps require the account and password of the LAN administrator (e.g. the account and password of the router).

Step 4: Notify users in the LAN directly or directly enter the flow control in the router for flow control.

Note: This method is for routers with data throttling.

Network latency caused by DNS servers.

Some netizens may set the DNS to a DNS server IP that is not local or elsewhere, you just need to reset it or set the DNS server IP to the local DNS server IP.

Based on the information provided, if a broadband fault occurs, you can troubleshoot the problem by using the following methods:

1 Use stand-alone dial-up, if you are using a router, please temporarily disconnect the router for testing;

2 Restart the modem and the computer;

3 Re-create the broadband dial-up connection and try to dial again. How to do it: Start the Program Attachment Communication New Connection Wizard.

If the self-troubleshooting still does not recover, you can contact human customer service to report the fault, and we will deal with it for you as soon as possible.

I don't know if there is a switch in your LAN, if so, see if the network cable connection between the route to the switch is reliable, whether the network cable is aging, worn, and whether the crystal head is standardized, you can consider reproducing a network cable.

You are ping the router has packet loss, but ping other computers do not, and there is also a possibility that one of the computers in your LAN has installed P2P software, or similar software. This software can monitor all hosts in the network, control the traffic, let you not go to the network, or drop the connection during the interruption time, and even control your QQ, and then QQ is up and down. It is recommended that you enable a firewall and install anti-ARP software.

Knowledge and ability are limited, hope it helps you

Possible causes:

1. The wireless network card of the notebook is not installed with a driver or the driver is incorrect;

2. The IP setting of the notebook is incorrect;

Solution: 1. Right-click "My Computer" - Device Manager, and in the window on the right, check whether the wireless network card is installed.

2. If the driver is incorrect, you can uninstall it and reinstall it.

3. Go to "Network Connection" to check the IP settings of the wireless network.

1) Right-click on "Network" -- Properties -- Change adapter settings. Once entered, right-click on "Wi-Fi" and click on Properties.

2) The "Wireless Network Properties" option pops up, double-click "Internet Protocol Version 6" on the page that appears, and check "Automatically get IPv6 address".

4. If the above methods still cannot connect to the network, please check whether the connection between the router and the cat is normal.

There are two scenarios that determine the delay in ping test results:

1) Is the CPU of that machine very busy, can it handle your requests in time, and if it can't take care of it, it will lose packets. Recorders along the way will also lose packets because they can't take care of it.

2) Network transmission delay, the farther the path, the greater the delay.

In the same LAN, other computers do not lose packets without delay, while the router connected to the local area loses packets and delays, it is likely that the router is busy or has other problems such as its own configuration or failure.

Is it that the router has done a rate limit on this IP, if it is to turn off the rate limit, try it!

Inferring that you are ping the local router, latency and packet loss should be a problem with the LAN. Directions that can be checked:

1. If you are using a network cable, please check whether the wire sequence of the twisted pair is correct (generally use the 568b standard network cable stranding method:

That is, from left to right: orange white, orange, green white, blue, blue and white, green, brown white, brown). If the line sequence is incorrect, external electromagnetic interference will affect network communication, resulting in packet loss, and devices with frequent packet loss will continue to retransmit, reducing network efficiency and high latency.

2. If you are using wireless, there should be serious interference nearby (for example, there is wifi next door and using the same frequency band), as long as the frequency band in the WLAN settings of the wireless router is set to manual, try a few more to see which band has less packet loss.

In relation to the question you described, there may be the following possibilities:

1: ARP attack, but there are two under your router that should not exist.

2: Virus, your computer is infected with a virus, causing your LAN to be slow, it is recommended to check and kill your own computer.

3: Router setting problem: Whether the settings on your router are correct, reset the settings.

4: The router is dead, the port is blocked, restart the router.

5: The router is faulty, without going through the router, plug it directly into the computer to see how the speed is, if it returns to normal, it is the problem of the router.

Try arp -a

Then try to ping the router if there is a problem. If it's okay, it should be that your other computer has a virus or something.

If there's a problem, it's probably a problem with your line.

The router is not set up properly. There is also a possibility that the line is wrong

Does your router turn off at night?

It's a problem with the router, change it!

Obviously, there is a network virus on the intranet. It is recommended that your company learn about the Patrol Immune Network solution. Upgrade your network from a normal network to an immunity network by deploying a patrol immune network solution.

On the surface, these network problems are caused by network viruses, but at a deeper level, they are caused by the inherent defects of Ethernet and the difficulty of management.

Possible causes: 1. Router; 2. The network cable from the router to the computer; 3. Computer network card.

Check the method. 1. Try to change the network cable, if it is normal after changing. It's a matter of line;

2. Find a laptop to try it, if it is normal after changing. It's a problem with the computer network card;

3. The line and the computer have been replaced, and it is not normal. The only way to do that is to change the router.

It's all plugged in the network cable or what's going on,If it's wireless, there may be wireless signal interference,If there are other wifi around,It is recommended to enter and set the channel,Generally, the default channel is 6 or 11,It seems to be 1-12。 You say the channel will revert back to its original state?

Channel 3 interferes with channel 1 6, channel 9 interferes with channel 6 13, etc., so to ensure the stable operation of multiple wireless networks in the same coverage area, it is recommended to use (or 13) these three channels. For example, in the office there are three Wi-Fi, in order to avoid drying.

scrambling and overlapping, these three channels should be used sequentially.