VAN IOMMU

I’ve been dealing with a really frustrating issue in Valorant. After a couple minutes of playing, my PC either crashes with a BSOD (WHEA_UNCORRECTABLE_ERROR) or I get kicked out with a Vanguard error about IOMMU needing to be enabled.

The weird part is:

With IOMMU on, the game launches but my system eventually freezes/crashes and even disables my LAN adapter or sound card.

With IOMMU off, the game runs fine for a bit but then Vanguard forces me out saying it needs to be enabled.

I’ve already raised a ticket with Riot, sent logs, and followed all the steps they suggested (BIOS changes, firewall configs, driver updates, router resets, etc.) but nothing has fixed it. Riot even mentioned it might be a hardware-level problem, but I want to check here first.

Has anyone else run into this Vanguard + IOMMU/TPM issue and found a fix? Any BIOS/driver tweaks or workarounds would be super helpful.
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