Factorio crashing on Windows 11

[pioruns]

Have you taken out these two sticks of RAM? What speed are the remaining two running at? 6400 MT/s, yes? Have you done Memtest86+ on these two sticks alone at 6400 MT/s?

If it's not hardware, then there could be many more software reasons, like overlays, overclocking tools, various intrusive peripherals drivers, antivirus software, and so on.
Troubleshooting steps if you think it's the software:
1. Create new Windows 11 user profile, log out from your current user and log in to the new one, install game fresh there from https://factorio.com/download and try again.
2. Get a cheap HDD or SDD (to avoid messing around with your existing partitions), install Linux Mint on it, download Factorio the same way as above, and have a go.

[McSniperliger]

I don't do any overclocking. No I have not removed two RAM sticks yet, because I don't know if that will cause issue or not with the rest of the system. The only stuff that would be running in the background would be my SteelSeries macro keyboard that does random video clips while in game (will do 30-100 59 second clips over the course of a game session). Other background program would be Asus Armoury Crate and the Thermaltake RGB PLUS apps. The game only seems to crash now while doing multiplayer. After deleting the game cache the other day, I was able to play in my world for over 4 hours without any issues. Tonight playing with my brother on the same world but multiplayer, the game did crash after an hour and a half.

I could believe it could be hardware related, if it would crash with all my other games I have that are not nearly as optimized. Is there anything different between how the games are single player vs multiplayer or is there nothing really that different overall? I am playing on the latest public version of 2.0.76. Game logs don't say anything, even had my brother run through his game log as well to see if his side picked anything up. Nothing. Tearing into my case to install a standalone SSD to run Linux is quite a pain with how the case is designed. Either I am finding the most random bug for multiplayer, something is up with the latest version of Windows 11, or there is something else that is not being crystal clear.

[pioruns]

Running your modern DDR5 RAM at dedicated speed is not overclocking. You are meant to go to BIOS and change speed from safe defaults to speed it has been designed for, and doing so is covered by warranty. It's done that way to ensure boot on every computer, not because it is overclocking.

No I have not removed two RAM sticks yet, because I don't know if that will cause issue or not with the rest of the system

You would have less memory available, that's all. You can run Windows 11 from any stick, even just one. Removing 2 sticks of RAM was a logical troubleshooting step I suggested because AMD chipsets must work much harder with all 4 populated, it is known to cause instability on some systems.

The computer from my signature can run Factorio 24/7 without any crashes or hard hangs. I don’t even know what a crash message looks like. This is the level of stability you should aim for, nothing less.

Anyway, if you are satisfied with the troubleshooting steps done so far and are not willing to do more to get to the bottom of this instability, I guess my work here is done.
Good luck!