Exactly the same problem. Played with a friend on the server and he got this error. For several days he can not log on the server. Does not help removing mods, checking files, reinstalling the game and even reinstalling Windows. Apparently this problem is of a massive nature. There are also many people in the server group who are crashing for the same reason.

In T186697#2708528, @Alik93 wrote:

Exactly the same problem. Played with a friend on the server and he got this error. For several days he can not log on the server. Does not help removing mods, checking files, reinstalling the game and even reinstalling Windows. Apparently this problem is of a massive nature. There are also many people in the server group who are crashing for the same reason.

My friend also has no problems. I can assume that the problem is in the Internet provider. And I have not seen people with such a problem outside of Russia. Perhaps this problem occurs only in people from Russia. And perhaps it is related to "Roscomnadzor". :/

Also the only thing that helps and fixes this is using a VPN(

In T186697#2708573, @skimask187 wrote:

In T186697#2708528, @Alik93 wrote:

Exactly the same problem. Played with a friend on the server and he got this error. For several days he can not log on the server. Does not help removing mods, checking files, reinstalling the game and even reinstalling Windows. Apparently this problem is of a massive nature. There are also many people in the server group who are crashing for the same reason.

My friend also has no problems. I can assume that the problem is in the Internet provider. And I have not seen people with such a problem outside of Russia. Perhaps this problem occurs only in people from Russia. And perhaps it is related to "Roscomnadzor". :/

people who live in poland and berlin wrote in the server chat with the same problem. As far as I understand mods and servers are loaded through the main Bohemia servers. My friend asked the ISP for information about port blocking and they said that nothing is blocked. So we can assume that the problem is not on the user's side. I had one time to fly out on the same error, helped by deleting and reinstalling mods. And when checking the work through VPN gave the same error. So nothing is not clear.

Have same issue, cannot join Reforger servers. Connection worked correctly about two weeks ago, then problem suddenly appeared. Then it was fixed by itself but today I noticed that doesnot work again. Nothing helps, tried to reinststall mods, reinstall the game, change ISP. It doesnot work on my PC and Xbox. I am from Russia. I know that it is not content blocker because all my friends play normally. Also sometimes i am able to connect too. Please investigate and fix this issue:( will subscribe on this topic

After the update the problem did not go away. It is a pity that I bought a product that no longer works. Only VPN helps, but it is not stable and should not be like that.

In the log file you've attached there are 48 mods loading with the game.
Delete mods from "addons" directory on your hard-drive, wherever you have them and probably the problem will go away.
You could also check this:
https://www.elevenforum.com/t/enable-or-disable-kernel-mode-hardware-enforced-stack-protection-in-windows-11.14966/
At some point turning it off used to help.
It's a security feature, but if you're not planning to launch Орешники from your computer, there is no real security concern for you.

I already said that even without mods on the official server, that other cases. It doesn't matter, the problem remains. I have already reinstalled the game, mods, without mods at all, firewall settings, bios settings, etc. I tried to do what you wrote, but it does not help.

Вы также можете проверить следующее: https://www.elevenforum.com/t/включить-или-отключить-аппаратную-защиту-стека-в-режиме-ядра-в-windows-11.14966 В какой-то момент отключение этой функции помогало.

Make a screenshot of your mod manager. It should look like this:

And you need to be sure that you don't have any old or random places where mods are stored.

Look here and see how you have it set:

I'm not stupid). I understood what you mean. Yes, in the log file I have a different mod installation address. But I have already removed it. And completely deleted the mods. Everything is the same, about 70% of the servers do not work. The rest work fine without mods (official) and public with mods. I have no idea what this could be connected with. Especially considering that everything worked before.

So now check default installation folder for mods:
C:\Users\[your user name]\Documents\My Games\ArmaReforger\addons
Sometimes after changing default directory, then changing it back to default, Reforger stores some mods in that default location.
Your problem is clearly with some modded content. It happens after the updates, because mods are not updated yet.

I have been getting this same issue today. I only bought the game on Thursday. Played an hour or so Thursday night and seemed fine but was in a server earlier and got booted for some connection issue and ever since been unable to connect to any other server. Getting the same message Kick cause code: group=1 'REPLICATION', reason=3 'CONNECTION_FAILURE'

When I don't get that message I get one regarding a network error and telling me to check my connection. Well, there is nothing wrong with my connection. Full fibre 300Mb with a 8ms ping. It's been tested and its working fine.

"No connection with backend. The response from the server took too long. Check your network connection and try again."

Just got that when trying again. Funny, every other game is fine and my connection test perfectly. Something isn't right.

I also have no mods installed as I have only just bought the game. At the moment you have my money and I have a game I can't play. Hardly seems fair, old chaps.

In T186697#2719485, @kawalec wrote:

So now check default installation folder for mods:
C:\Users\[your user name]\Documents\My Games\ArmaReforger\addons
Sometimes after changing default directory, then changing it back to default, Reforger stores some mods in that default location.
Your problem is clearly with some modded content. It happens after the updates, because mods are not updated yet.

I had this problem not yesterday, not this week, but almost two months ago. You are telling me about basic things that I had already done on the first day of the problem. And again, I will repeat, I reinstalled the game and tried to enter the servers without downloading mods. The problem is identical!

OK. I am trying to help you. I already helped some people with this problem. They had additional addons folder somewhere on their hard drives. In this folder they had partially downloaded mods which caused problems.
So if you're certain, that you removed it all - OK. but remember that reinstalling the game (unless you somehow made a clear install with clearing registry and EVERY file) does not solve this.