It often happens that after pressingStartand some loading time, the server still remains in the statestopped, registered, and this is repeated over and over.

Step 1: Check the server log

Make sure in there is no hardware key error line:

07/02/2017 18:54:08|0| 2354| UNKNOWN| CHECK CERT: HW key is failed!

If there is, then .

This error could occur if you, for example, transferred yours to another computer or reinstalled Windows.

Step 2: Check your internet connection

The free version of the video conferencing server does not work without an internet connection.Make sure that the computer on which the server is installed is connected to the Internet. To troubleshoot your Internet connection, contact your network administrator.

Step 3: Check the server license expiration date

The validity period of a TrueConf Server license can be checked in its tab Server Information in section Registration Information. If the license has expired, for its extension.

Problem #2 not registered

Make sure that the computer with TrueConf Server installed has access to the registration server reg.trueconf.com via TCP port 4310 . This is a must for free version servers

You can check this, for example, using the Telnet utility with the command:

telnetreg.trueconf.com 4310

If the registration server cannot connect to yours, you will see the following message:

Connecting To reg.trueconf.com…Could not open connection to the host, on port 4310: Connect Failed

In this case, to solve the TrueConf Server registration problem, you need to arrange access for your computer and organization's network equipment to the above address and port.

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Why won't the server turn on?

Why won't the server turn on? Users and owners of their own servers quite often ask this question, and it is worth noting that there are a lot of reasons for the server to stop working normally, and they are all different.

The first and main reason that the server does not turn on is its overload, or in other words, the server simply freezes. This problem, as a rule, manifests itself on servers where there is a fairly high load, and this usually applies to large companies, offices with 15 or more computers, game servers, internet servers. Imagine a banal situation when a large number of users decide to use the same information stored on the server, and in this case we are talking not about one dozen users, but about a hundred, of course, taking into account that the server is a sufficient manufacturer. In this situation, the server receives a huge number of requests, both direct and indirect, as a result of which the system simply cannot withstand such an onslaught. In companies and offices, this problem is especially acute on servers with databases installed on it, and in this case, the exchange is carried out not only with some users located in the immediate vicinity of the server, but also from other access points. Return to work "tightly" hung server can only System Administrator, and in this case you will have to completely reboot the system, and in this case it may take some time. In the event that you do not have your own system administrator, you can use the services of our highly qualified specialists from the HelpUser company, who will perform the work very quickly, and our employees will do it professionally.

The reason why the server does not turn on can also be attributed to the so-called network DDos attacks, which act as a kind of server loader, sending it great amount requests, as a result of which the server simply freezes and, as experts say, “falls into a coma”. Bringing such a server to normal operation, although very difficult, is quite possible, but again, it is best to entrust this work to professionals from the Help User computer center, who have vast experience in restoring servers. In addition, if necessary, the specialists of our company will help you install special software that will help prevent hacker attacks to your server, which will save all confidential information in complete safety.

A fairly common reason why the server does not turn on is the installation of low-quality, and most often pirated software on it, which is unstable in its work, as a result of which, when working with program code, numerous errors occur, both of a software and hardware nature, which naturally leads to errors, system failures and a complete “rally” of the server. The only correct solution would be to install a high-quality licensed software on the server. software, which guarantees the fact that the whole system will work stably. In addition, do not forget about various system failures, which may not be systematic. But still, it can take place, and this can also cause both a temporary inoperability of the server, and become the reason why the server does not turn on. Any services related to the installation of high-quality and licensed software, as well as services related to server recovery after system failures, are ready to be provided by our specialists. service center"Help User" - we work efficiently, efficiently and professionally.

Hardware failure is also the reason why the server does not turn on. It is possible to identify a malfunction only by resorting to a complete diagnosis of all equipment, and for this you need to have special skills in handling the server and not every system administrator can handle this, and, as you know, depending on the type of server, the equipment can be very different in terms of its functionality. Having resorted to the services of the HelpUser company, you will not only receive qualified assistance, but also, if necessary, our specialists are ready to help you with the repair of expensive equipment.

In this article, we will talk about the most common server problems, how to diagnose them, what to do in case of a breakdown, and most importantly, how to prevent them.

What typical server failures might look like:

• the server does not start at all
• server loading problem - server starts but shows “ blue screen death” (BSOD)
• the server starts, it loads operating system, but some services are not working (for example, the site)
• there was a failure to communicate with the server over the network
• the server gets very hot during operation
• constant reboots for no apparent reason
• there is a noticeable decrease in the speed of operations

Causes of server failure and breakdowns, typical malfunctions:

• Physical shutdown- Most likely, the reason for the failure of the servers is a hardware problem or a power outage. In the first case, you will need to repair or replace the failed part, it is unlikely to be quickly fixed. In the second, try to boot / reboot the server first, when the electricity appears - there are chances that its performance will be restored.
• Server starts but is offline, client applications try to connect to it and give a server connection error - an unexpected server communication problem may occur due to problems in the server network card or due to incorrect network settings(wrong IP address, subnet mask, gateway, problem in network protocols). It is also possible that the connection error with the server is caused by a malfunction network cable or another - a router / switch / hub.
• The reason for shutting down the server may be a breakdown of one of the components, according to statistics, most often “fly” hard drives hdd, motherboards, adapters, processors.
• Errors in the configuration- many typical server malfunctions are a direct consequence of errors in its configuration, and you will need the help of a qualified one to fix them.
• The cause of the server crash may be a system overload caused by internal processes such as user activity or poorly configured withdrawals backups, or a DOS/DDOS attack from outside.
• Server startup and startup failure? Maybe the server is overheating.

How to troubleshoot and prevent server problems

It is much easier and cheaper to prevent server breakdowns than to fix them when they have already appeared.

Here are a few things you can do to reduce the chance of your server failing:

• If you have your own, organize high-quality cooling in it and try to keep it always closed so that excess dust does not penetrate there. Be sure to use uninterruptible power supplies.
• Regularly carry out preventive maintenance of servers - cleaning from dust, replacing thermal paste, etc.
• Use a specialized one to monitor the state of the server and notice server problems in time.
• You must have configured backup and restore server data to prevent loss important information in case the server still “falls”. Make backups regularly, and if possible, use it, then if the server fails, its work will be distributed among the rest of the servers in the cluster.

If, despite all the measures taken, you still have problems with the server, what should you do?

In some cases, you can try to diagnose yourself to understand what happened and how to fix problems with the server:

• View the server event logs - perhaps they will be able to understand the cause of the problems.
• Physically inspect the server components, sometimes their breakdowns are visually noticeable.
• If possible, run a memory test.
• Run check hard drives for errors.
• Check server. This can help with troubleshooting, often such problems are the result of malware.
• Check CPU load, memory status, usage disk space using specialized software.

Urgent server repair, what can be done

How to fix a server issue. If you have a server failure, and its downtime or data loss threatens the company with serious losses, it is better not to try to fix everything on your own, but immediately turn to specialists for help, it will be faster and more efficient.

For example, an unskilled attempt to recover data may instead permanently destroy it.

Server Maintenance

Integrus Group engineers have been working for many years, you can always contact us for a free consultation, audit, and if necessary, for urgent server repair.

We carry out the entire list of repair work, work on data recovery from the server in case of hardware or software failure, service maintenance, prevention and monitoring, modernization, creation of a turnkey server room.

Made a server from scratch, installed forge. The forge file itself is not launched by the console forge-1.7.10-10.13.0.1152-universal. I tried through the .bat file to run this is what it says:

: Forge Mod Loader version 7.10.1.1152 for Minecraft 1.7.10 loading
: Java is Java HotSpot(TM) Client VM, version 1.8.0_45, running on Windows 7:x86:6.1, installed at C:\Program Files (x86)\Java\jre1.8.0_45
: Java classpath at launch is C:\Users\Denis\Desktop\Server\forge-1.7.10-10.13.0.1152-universal.jar
: Java library path at launch is C:\Program Files (x86)\Java\jre1.8.0_45\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C: \ProgramData\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files ( x86)\Skype\Phone\;.
: Enabling runtime deobfuscation
: Instantiating coremod class FMLCorePlugin
: Added access transformer class cpw.mods.fml.common.asm.transformers.AccessTransformer to enqueued access transformers
: Enqueued coremod FMLCorePlugin
: Instantiating coremod class FMLForgePlugin
: Added access transformer class net.minecraftforge.transformers.ForgeAccessTransformer to enqueued access transformers
: Enqueued coremod FMLForgePlugin
: All fundamental core mods are successfully located
: Discovering coremods
: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
: Unable to launch
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[?:1.8.0_45]
at java.util.ArrayList$Itr.remove(Unknown Source) ~[?:1.8.0_45]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:117)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_45]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_45]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_45]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_45]
at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:43)
at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12)

When I just click on it, it creates the mods folder, but the console does not open, it seems to turn off in general, and all other .jar files work properly. Please help, if it's not difficult to write the launch code for the .bat file. Windows 7 (x64), java 8.

I started the server via .bat using this code:

@echo off
:start
java -Xms1024M -Xmx1024M -jar -Dfile.encoding=UTF-8 forge-1.7.10-10.13.0.1152-universal.jar nogui
goto start

Today I have prepared an article for you that will help you solve one fairly common error that baffles even fairly advanced users: dns server not responding.

In this article, I will talk about the causes of this error, as well as several ways to solve it. From you in the comments, I will wait for confirmation of what exactly helped you, as well as new options, if someone knows. Go!

1. What does "DNS server not responding" mean?

To proceed to troubleshooting, you need to understand what it means the DNS server is not responding.

To understand the essence of the problem, you should know what a DNS server is. When referring to any virtual page on the network, the user gets access to a specific section remote server. This section contains and stores files that are converted by the browser used and offered to users in the form of a page with text, images and other information familiar to the visual perception of any user. Each server has an individual IP address, which is required to gain access. DNS server is a functional tool for comfortable and correct redirection of queries to a domain from a specific IP address.

Often the DNS server does not respond in Windows 7 / 10 when connected to the network via a modem and without using a network cable, as well as for users who use another wireless method internet connections. AT individual cases the error may occur after installing the antivirus.

Important! It is not uncommon for users to personally take an interest and make changes to the modem settings that lead to a loss of communication and an unwanted error. Therefore, it is not recommended to edit working settings without the need.

2. Dns server is not responding - how to fix it?

If the user observes an error, then there are four ways to eliminate it:

. Very often it is enough to reboot the modem to fix the error. During the reboot process, the device returns to its original initial settings and parameters, which helps to quickly and efficiently solve the problem;

Checking the correctness of entering addresses in the settings. To check the literacy and correctness of filling in the DNS address, you need to go to the properties tab "Connections by local network”, there you need to find “Internet Protocol v4” and check specified address. The information to be entered in this field must be included in the connection contract documents. The server address can also be obtained from the provider by contacting him by phone or in another way;

Update drivers for network card . The problem can be solved by changing the provider and in some other situations;

Configuring antivirus and firewall. Modern programs that are designed to protect data and information on a PC from viruses and fraudulent activities can block access to the network. It is necessary to carefully review the settings of such programs.

In order to correct the error with a greater probability, it is necessary to consider specific situations in detail. This is what we will do below.

2.1. On Windows

It is possible to identify several possible solutions problems listed in the table.

Way	Procedure
	It is recommended to unplug the device or use the power off button, if provided in the configuration, and wait for about 15 seconds. After the time has elapsed, you must turn on the device again.
Using the command line	Should be called command line from the administrator of the PC. To do this, click on "Start", then find and click on "Search programs and files" and write cmd. After these steps, a program shortcut will appear. You have to click on it right click computer mouse and select "Run as administrator".Then you should type and execute certain commands, after entering each command, you must press the enter key: ipconfig /flushdns ipconfig /registerdns ipconfig /release ipconfig /renew
Checking settings and options	You need to visit the control panel and find the "Network Control Center ...". This subsection contains information about the network. You should select the connection you are using, then right-click on the computer mouse and select "Properties". The user will open a new window in which you need to select in turn: Protocol (TCP/IPv6); Protocol (TCP/IPv4). Then you need to click on "Properties". You should check the boxes next to the items: get the DNS server and IP address automatically. When checking the settings, you must be very careful and take into account the information specified in the contract with the provider, if any. This method helps only if there is no specific address specified by the provider.

You can register the addresses provided by Google, which, in the opinion of search engine, help speed up the loading of web pages: 8.8.8.8 or 8.8.4.4.

3. DNS server not responding: TP-link router

Most modern users use TP-link routers and devices. Error DNS server not responding can be eliminated in several ways:

Attention! For some, especially inexpensive TP-link models, the parameters go astray. In this case, you should follow the setup instructions that came with the device and enter the data and DNS addresses specified in the contract and provided by the provider.

On the TP-link router it is better to set basic settings unless otherwise specified in the contract with the provider.

4. DNS server is not responding (Beeline or Rostelecom)

All of the above methods of eliminating the error are designed to ensure that the problems arose from the user. But practice shows that in most cases, problems occur with the provider due to a number of reasons, such as technical malfunctions.

For this reason, it is necessary not to rush when an error occurs, but to wait a while: you can reboot the computer and router during this period without touching any settings. If the situation has not changed, it is recommended to contact the representatives of the provider company and tell about the problem, informing the specialist of the data that he requires: contract number, last name, IP address or other information. If a problem occurs with an Internet connection service provider, he will report this and tell you the approximate time frame for fixing the problem. This is especially true for Internet owners from Rostelecom (I myself am one of those, so I know what I'm talking about). Very useful numbers:

• 8 800 302 08 00 - technical support by Rostelecom for individuals;
• 8 800 302 08 10 - technical support by Rostelecom for legal entities.

If the problem does not arise at the provider, then the company's specialist can in some cases help the user solve it by giving competent advice or recommendations.