Hyper-V Reverse Replication issue

We have two Server 2012 R2 servers, both enabled as replica servers.
Both servers are in a workgroup (no domain).
They are connected over a site-to-site VPN connection.

Whenever we try to do a planned failover with reverse replication, we get the attached error message.

We have all the Hyper-V firewall rules enabled.

Anyone else seen this behavior?
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highdellAuthor Commented:
Forgot to mention: we've never done a planned failover on these VMs and we've done all the TechNet research we can do.

 That was one of the first articles we found and it did no good, but thank you!
highdellAuthor Commented:
As I expected, it was local servers not trusting each other. Section 1.3 of this link here, https://technet.microsoft.com/en-us/library/jj647785.aspx, fixed it for us.

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highdellAuthor Commented:
I found the answer before someone else did.
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