Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

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AD SSO - Cannot establish NTLM authentication channel with xxx

Stuart James

Getting hundreds of these in the log for Authentication:
Cannot establish NTLM authentication channel with

Have read through all the other forum posts and they say to disable AD SSO in Device Access, but it's already disabled

But if I try to remove the AD server from authentication methods, I get this



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