In T138818#1863304, @Lex wrote:

I did not assume that the problem with BE is related to blocking your IP address on a remote server.
This can happen at any time for any IP address. You can try not to change the provider, but contact the technical support of your provider.

1. The provider can enable / provide the service with an external IP address.
2. The provider can change your external IP address. This is available from any provider, provided that there are free external IP addresses.

With the replacement of the internet provider, the problem was solved. But the strange thing is that I tried a lot of games using battleye and they all worked perfectly (DayZ Standalone, Tom Clancy's Rainbow Six® Siege, Planetside 2), unlike ARMA. Also in the process of finding a solution to a problem, I met quite a few people with this problem. Apparently they have wasted their money. I consider the problem to be solved at the level of game developers or anti-cheat developers. I was advised so much nonsense. Repair your game, not everyone is ready to throw out extra money to reconnect to another Internet service provider. This is your mistake!

Tom Clancy's Rainbow Six® Siege (using BE) - works fine.
DayZ Standalone (using BE) - works fine.
All other games - works fine.
WTF With ARMA 3 BE?
In a week I will connect to another Internet provider (well-known), and if nothing changes, I would like to return the money for the game back.

In T138818#1860387, @Astaroth wrote:

I am really sorry for your troubles. Do you have this issue on all servers or it is similar like in RC that you are able to connect to some servers? Do you know when this issue has started? It can be connected with some drivers update or change of
some network hw like router for example. Did you try reinstall root certificate?

BattlEye initialization failed
First of all, please ensure that BE is properly installed for your game. You can manually install it by following the instructions on the download page. If that doesn’t help there might be a problem with your file permissions. To fix this please go to “C:\Users[username]\AppData\Local[game name]” (make sure that you can see hidden files/folders if you can’t find this directory) and delete the BattlEye folder there. If the issue still persists your system’s root certificates might be broken/corrupted. To fix them download and install the following update from Microsoft: http://support.microsoft.com/kb/2813430.
https://www.battleye.com/support/faq/

In T138818#1858015, @Plastilin wrote:

In T138818#1857925, @Astaroth wrote:

Hi,
could you please try it in 1.92 RC branch? We have few official servers online so please try if you are able to connect in the new version. Beta code is Arma3Update192RC.
https://dev.arma3.com/rc-branch

"A" server - BattlEye initialization failed.
"B"&"C" servers - works fine.

In T138818#1857925, @Astaroth wrote:

Hi,
could you please try it in 1.92 RC branch? We have few official servers online so please try if you are able to connect in the new version. Beta code is Arma3Update192RC.
https://dev.arma3.com/rc-branch

In T138818#1857971, @Lex wrote:

In T138818#1856581, @Plastilin wrote:

In T138818#1856580, @Vitdom wrote:

It might not work but try uninstalling BattlEye and reinstall it again on your system.

Run as administrator ...\steamapps\common\Arma 3\BattlEye\Uninstall_BattlEye.bat then
Run as administrator ...\steamapps\common\Arma 3\BattlEye\Install_BattlEye.bat

"Tried everything" means - tried everything.

@Plastilin Maybe I'm wrong. But when BattlEye is removed, BattlEye user folders remain on the system disk. After deleting BattlEye, Use the search on the system disk, find all the folders named BattlEye. Delete these folders. If deleting folders encounters a failure to delete, in the task manager, find the BE processes and close them. Continue deleting the BattlEye folders. Reboot the PC. Install BattlEye.
This problem could occur when Arma3 or DayZ was updated, but some of them launched the old version of BattlEye.

In T138818#1856580, @Vitdom wrote:

It might not work but try uninstalling BattlEye and reinstall it again on your system.

Run as administrator ...\steamapps\common\Arma 3\BattlEye\Uninstall_BattlEye.bat then
Run as administrator ...\steamapps\common\Arma 3\BattlEye\Install_BattlEye.bat

In T138818#1856410, @Vitdom wrote:

Which version of Windows 10 are you using?
Ctrl+R "eventvwr", OK then write down the version and build numbers.

v. 1809 17763.437