Most Common Causes behind Server Crashes
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Most Common Causes behind Server Crashes

By CIOReview | Thursday, June 8, 2017

Server crashes occur when a website, software application, or operating system stops functioning and does not get displayed. Servers are nothing but hardware infused with a lot of software programs incorporating lists of codes necessary to make data (website/application) available for users. There can be various reasons behind server freezing; sometimes it may be a single issue that causes a server to hang while at other times it might be due to numerous problems happening at the same time.

Listed below are the most frequent causes of server crashing:

Network Glitch

This is one of the most common problems that might lead to server crash. Typically, users are not able to get to a specific website or encounter a website not found error, owing to slow internet connectivity. 

System Overload

At times, a server might take hours to load due to system overload. The system may respond slowly for a period and then return to normal operation. Such hang-ups occur during peak traffic periods when scheduled tasks run or in case any maintenance is going on. Thereupon, the server is no longer able to handle the growing attention of users, eventually leading to crashes. Keeping track of the server freezes can prove helpful in identifying the root of the problem.

Configuration Errors

A server may hang up and remain offline because of applying wrong techniques of configuration. To quickly fix configuration issues, one must always keep backups whereby one can evade situations like permanent deletion and refer back to an earlier configuration file. Subsequently, the server can be re-configured with the help of experts who can deal with such errors.

Hardware Issues

Hardware is seldom the reason for server crashes, although it is most often assumed to be one. The actual problem is with disk drives and one never knows when a disk drive is going to stop working. The best solution to this, yet again, is to keep ample backups and stay equipped.


Backups, as have been already mentioned, can be greatly useful but there are also instances where backups cause servers to slow down or even crash. This usually happens because backups eat up a large portion of the CPU which results in troubles of sluggishness. For overcoming such issues beforehand, technical assistance can be sought to back up busy systems with minimal impact on performance.


If servers are not cleaned and exposed to high temperature, they are likely to overheat which in turn will hamper their functioning, ultimately resulting in server crash. Moreover, it is advisable that server rooms are kept locked so that dust particles—yet another source of overheating—cannot enter through. If there is more than one server, it is best to stack them in a row allowing cold air to pass from front to back. Also, one must be watchful of plugs and wires while cleaning as they might stop receiving electricity.

Plug-in Error

Plug-ins (or extensions) are pieces of code that, when plugged into any computer program, gives it additional functions or features. This can include a simple contact form or a complete social networking system. However, plug-ins are typically created by third-parties which is why they are more often than not unreliable. Besides, many creators tend to abandon their plug-ins which over time become outdated and faulty. In such a scenario, if one updates the installation of a website to a version that is incompatible with the respective plug-in, server crash is obvious.

Code Breaking

If someone working on an online site breaks a web code, it is most likely that the server might hang or freeze.

Hosting Provider Error

If a website is being hosted elsewhere and the host provider happens to experience server hang-ups, it will naturally result in the website being crashed or frozen. The host might be running scheduled maintenance or facing critical weather that affects its hosting facilities. The worst part is that the website operator cannot get the problem fixed by themselves and instead has to wait for the provider to do the same.

Virus Attacks

Numerous spam bots and virus software flood the internet trying to find vulnerable websites that they can infiltrate. If these viruses manage to penetrate a website, it is sure to crash.

Expired Domain

Domain hosting is not similar to website hosting, although it is generally supposed to be so. There is a high probability of a website getting crashed if the hosting of its domain expires.

Anybody operating a website must bear in mind the aforementioned circumstances so as to prevent their server from getting crashed or frozen.

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