Your routers may have received a staged or region-specific firmware update. Before downgrading, try rebooting and checking for changelogs or ASUS support confirmation. If issues persist, a manual reinstall or factory reset might help. Troubleshooting...
That sounds incredibly frustrating! Since MemTest86 boots in UEFI but Windows installers fail, it could be a motherboard compatibility issue with Windows bootloaders. Try disabling Fast Boot, toggling Secure Boot, or using a different USB port. Conve...
