Selection list hangs when trying to select resourses from remote Windows 2008 Server with Exchange 2007

[SureNot]

Good day, i have the problem, after reboot of Windows 2008 Server with Exchange 2007, when i try to view resources in selection list  of Exchange 2007 Remote Agent it's hang. And if i try to run backup job it write the next error: 0x8004230f - 0x8004230f (2147754767).
And the error of AOFO initialisation.

[SureNot · Accepted solution]

The solution is to delete this host from known hosts and than add it again.