Windows 11 users experiencing sudden system crashes or Wi-Fi disconnections may finally see relief. Microsoft has acknowledged two critical bugs plaguing the latest stable version: one causing the dreaded Blue Screen of Death (BSOD) on certain graphics configurations, and another preventing connections to networks secured with WPA3-Personal encryption. Both issues have been addressed in the recent update, now being distributed in stages.
The BSOD problem stems from a flaw in the dxgmms2.sys driver—a core component managing DirectX memory—that triggers a KERNEL_SECURITY_CHECK_FAILURE error under specific GPU setups. Meanwhile, the Wi-Fi bug blocks devices from joining networks using WPA3-Personal, a modern security standard designed to enhance protection against brute-force attacks.
- Fixed in: Windows 11 Build 26200.7840 (KB5077181)
- BSOD cause: dxgmms2.sys driver issue with certain GPU configurations
- Error code: KERNEL_SECURITY_CHECK_FAILURE
- Wi-Fi issue: Inability to connect to WPA3-Personal networks
- Root cause: Bug in January’s optional update (KB5074105)
- Rollout status: Staged deployment to users
For users still affected, the fixes are part of the latest cumulative update, released earlier this month. Those on the stable channel should monitor their system for the update prompt or check via Settings > Windows Update. The staged rollout suggests Microsoft is prioritizing stability, but manual checks may be necessary for those eager to resolve the issues.
These aren’t the first hiccups for Windows 11 this year, but the fixes reflect Microsoft’s ongoing efforts to address core stability and connectivity problems. The WPA3 bug, in particular, could have broader implications for smart home devices and enterprise networks relying on the newer security protocol. Users on older builds or unsupported hardware may still face limitations, though the update aims to resolve the most widespread issues.
