Errors in computer games - this is far from the most pleasant moment of this entertainment. However, they have to face in one way or another almost all gamers. Even if you play Dota, one of the most popular projects of our time, you are not immune from the fact that at one point something will stop working for you. For example, you can take the Dota 2 "Network Connection" error - a fairly large number of gamers are faced with it. Moreover, it is worth noting that such a mistake is received by both players who first installed “Dota” and experienced masters who have played more than a dozen matches, respectively, starting the game many times before. So what do you do if you come across a similar situation? You turn on the game, try to connect to the server, but the only thing you get is an endless network connection. What are your actions?
Client Update
If you go into the game and try to connect to the server, but get only a screen with endless download and the message "Dota 2: network connection", then in this case you may have one of several problems at once, which should be considered separately. The first thing you should check is the availability of updates for the game client. Do not forget that "Dota" is a game that is under constant development, it is always being improved, so it does not take a week without the release of any "patch" that corrects the balance or changes some other little thing. Therefore, look at the official website of the game, and if there is news about an available update, download it, because the above-mentioned problem may arise due to the fact that you are trying to connect to the server using an old client that is incompatible with the network game. However, the error "Dota 2: network connection" can be caused not only by the lack of updates.
Problem with Internet
If you get a screen with endless loading and the message "Dota 2: network connection", then there is a possibility that the problem completely arises on your part. This means that you may have problems with the Internet, with the computer, with the Steam client.
You need to wait a while, restart the computer, reconnect Steam, and then try to restart the game. It is possible that the problem will disappear by itself. But still the likelihood of this is not too great. Therefore, it is worth moving on to considering other ways to solve this problem.
Change boot region
Dota 2 servers are scattered all over the world so that every gamer can connect and play normally on the network without any discomfort. Therefore, if your Dota 2 characters are slow and buggy, the effects freeze, or you can’t join the server at all, as described above, then perhaps changing the server on which you are going to play will help you.
The fact is that due to some unpleasant coincidence, Steam could determine the download region for you is too far from your location, so problems with connecting to the server can not be avoided. You need to manually go into the game settings and change the region there to the one that matches your location. And then the problem may disappear. Your Dota 2 characters will again move smoothly and will not freeze, and those gamers who could not connect to the server at all will finally be able to establish a working connection.
Change server access port
As you already understood, Russian Dota 2 is best run on Russian servers, but the problem may not be in the server itself, but in the port through which you connect to this server. And if you are unable to join the game, then you should try changing the port in the "DotA" settings by setting it using the clientport command in the game launch options. You can change the port to any available one until you select the one that works best for you. But more often than others, port number 27015 is successful, so start with it better.
File recovery and reinstallation
All the methods described above are designed to solve your problem with Dota 2. Starting the game will be normal in most cases, but there is a possibility that not a single solution will suit you. Then you have to use extreme measures. To get started, try checking the integrity of the game cache. If something in the game files goes bad, Steam will restore it and download the necessary files. If this does not help, try to force Steam to restore all the files yourself by turning off the program and deleting everything except the root files from the folder. Once launched, Steam will begin to restore your client, and there is a chance that this will help you with your problem. If not, then only reinstallation remains. First, Dota 2 itself, then the Steam client, and then the operating system, because you have no other choice. So all that remains is to hope that less radical ways of solving the problem will help you.