i tried thid with isoboxer and process explorer but as soon as i want to start 3th game it crashes
Still have 16mb ram in reserve got a i9 and im using rtx 4600 ti som im also fine on that part. Why do i it crash?

Try this guide.
https://forums.d2jsp.org/topic.php?t=102553231

Does your game crash or your PC?

I believe the newest update on windows 11 has causes a bunch of problems for people mulitboxing d2r. Or it could be some NVIDA driver update

If i have 2-3 clients open my entire PC sometimes freezes/crashes and requires a hard reboot

Someone found a possible solution but it doesn't seem to work for lots of other people: https://forums.d2jsp.org/topic.php?t=106799258&f=148

This post was edited by Strickland on Dec 3 2025 07:32am

Yeah. i saw that topic but those are alredy unchecked. what i could try is having a 2nd operating system and see if it works

This post was edited by Amvboys on Dec 3 2025 08:06am

Make sure you have "allow multiple instances" checked in the b.net app launcher