Monthly Archives: September 2015

WMI Error 0x80070721 when connecting through a trust

I recently assisted a client with a very specific WMI issue which was blocking access to a specific server across a domain / forest trust. During my investigation I found there was no suitably ranked article and so here is the issue outline and resolution. Key error codes:- Client:- KDC_ERR_S_PRINCIPAL_UNKNOWN - error 0x7 Client:- A…
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