SpecteRED

I did, but I don't have any ideas what to change anymore. I tried 3 built-in sound cards and 2 external sound cards - the result is the same. I also tried different Windows settings and different Windows builds (on these outputs I will try to test on Windows 10). Today I reinstalled windows 11 25h2 again - it didn't help. I've tried default drivers from Windows and tried drivers from motherboards. I tried changing the mouse polling rate, but it didn't help

As a result, I tried 3 different motherboards (Asus B650, MSI X870, Gigabyte X870). And the problem was observed at all - statters when the player exits the server. There are also statters, but I couldn't locate their origin. I tested it on servers with dynamic slots (4YA). If I turn off all audio devices in the device manager, the problem disappears (fps became super stable). If I turn on any audio device (for example, only the built-in sound card or only an external one), then the problem appears.

yes, I used LatencyMon to search for the problematic driver. I saw that you also had something similar, do you also have an ALC1200? I'm thinking of considering a motherboard with a Realtek ALC4080.

yes, disabling audio devices completely solves the problem, but this is not an option for me. I have all the audio ports busy (and even on my external Focurite sound card). It looks like the audio driver gets additional DPC pressure during network events. On the X870, Gigabyte has broken IRQ routing for Realtek and LAN.

I found a problem that looks like a conflict of my internal audio device in the motherboard. would you be able to tell which motherboards you are using and not encounter such lags (lag during player disconnection from the server)

you definitely have a different problem, at the moment I see strong lags only when the player disconnects from the server I recommend that you use LatencyMon to localize the driver that slows down the system the most. This is how I noticed that my built-in network card was having significant problems (I tried both new and old drivers). I have now installed an external network card, but now I see severe delays in the Audio Driver that the internal sound card uses.

I don't have a any processor core that's running at 100%

no. I'm only using one mod to increase the number of buttons for the gems.

I turned off absolutely everything for the test (all applications, antivirus). Only the discord worked (it worked for him too) We had the same settings in the game, Nvidia was in default.

as I already wrote, there is no such problem on my second computer with a different processor. and it's in the same room as my first PC. So there's no problem with the network.

Yesterday I tested the game with another user on the same server (we took the same helicopters and just stood on the ground). Both have a frame rate limited to 120. Whenever someone logged into the server, my frame rate dropped to 40-60, and my friend's dropped to 110-115. I'll try to buy another motherboard like my friend's, even though it's worse than mine. (ASUS TUF GAMING B650-PLUS).... if it doesn't help, I'll try to buy exactly the same processor as I have now.

@Av8trI don't see any lags in the single version. all drivers are updated to the latest versions (even tried beta versions) if I set all the settings to the absolute minimum, the situation does not change. at a minimum, 2 GB of Vram is used out of 12

that's exactly what I did, logging into the same server from different PCs. I have very strong lags (drops from 120 to 20-30 fps), she also has lags, but much less (drops from 120 to 105-110 fps) I always perform a clean installation. I've been trying to solve this problem on my own since June. I've been trying to solve it with DCS support for the last month...now i'm here

I thought so too, and after that I reinstalled win 10 - it didn't help. after that, I installed win 11 23h2 - it didn't help, then I installed win11 24h2 - it didn't help.... Now I'm thinking of trying 25h2, but there's little hope. There were the same lags at all stages.

now I really only have statturs when another player join/disconnect, but they didn't happen before. also, there are no 13700 of them either. So this is a solvable problem. moreover, I see such a problem in star citizen. And I saw a similar situation on Reddit in Final Fantasy (online).