About this tag
The mrxsmb20 tag on WindowsForum.com covers discussions about the MRxSmb20 driver, a core SMB 2.0 protocol component in Windows. User-reported issues often involve this driver failing to start, which can break network drive mapping and file sharing in environments like Windows Recovery Environment (WinRE). Troubleshooting typically focuses on dependency chains, driver status, and system configuration. The tag is relevant for Windows 11 users and IT professionals dealing with SMB connectivity problems, especially during recovery or deployment scenarios. Content here reflects real-world troubleshooting steps and solutions shared by the community.
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    WinRE SMB networking broken?

    I'm running Windows 11 Pro 25H2 OS build 26200.8894 with WinRE 10.0.26100.8875 When I boot into WinRE, ipconfig shows my NIC. So far so good. After running winpeinit, ipconfig shows my network and I can ping machines on it. So far so good. After attempting to unsuccessfully map a drive or...