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AlexLeadingEdge
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New Server 2016 Hyper-V Host, Cannot Connect To Guest

Post by AlexLeadingEdge » May 03, 2018 1:40 am

Hi guys,

I'm probably doing something wrong, or havn't done something, but I've just created a new Server 2016 Hyper-V Host and when I try to back up the VMs on this I'm getting this error:
3/05/2018 1:32:22 p.m. :: Failed to finalize guest processing. Details: Failed to connect to guest agent. Errors:
'Cannot connect to the host's administrative share. Host: [xxx.xxx.xxx.xxx]. Account: [HyperVHostName\administrator].
Win32 error:The user name or password is incorrect.
Code: 1326
I know for a fact that the username and password IS correct, but it still won't connect. The ADMIN$ share works fine if I access it through Windows Explorer. I see the same issue occurs with VeeamONE.

Any idea what is going on here?

AlexLeadingEdge
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Re: New Server 2016 Hyper-V Host, Cannot Connect To Guest

Post by AlexLeadingEdge » May 03, 2018 2:03 am

Testing the Guest Credentials I see this:

Code: Select all

3/05/2018 1:59:03 p.m. :: Testing credentials via guest interaction proxy fileserver
3/05/2018 1:59:03 p.m. :: Finding VM reference on host <REDACTED>
3/05/2018 1:59:03 p.m. :: VM reference: e68bdc5a-8592-4c73-b631-77f9ba63d981
3/05/2018 1:59:03 p.m. :: Collecting guest OS info.
3/05/2018 1:59:04 p.m. :: VM is powered on.
3/05/2018 1:59:04 p.m. :: IP addresses: <REDACTED>
3/05/2018 1:59:04 p.m. :: Guest OS: <REDACTED>
[color=#FF0000]3/05/2018 1:59:04 p.m. :: Checking standard credentials
3/05/2018 1:59:04 p.m. :: Connecting to guest OS via RPC
3/05/2018 1:59:04 p.m. :: Testing admin share accessibility via RPC
3/05/2018 1:59:04 p.m. :: Failed to connect to guest VM;
3/05/2018 1:59:04 p.m. :: Failed to connect to guest VM: <REDACTED>. Error: Logon failure: unknown user name or bad password.;[/color]
3/05/2018 1:59:04 p.m. :: Failing over to backup server for guest interaction
3/05/2018 1:59:04 p.m. :: Finding VM reference on host <REDACTED> 
3/05/2018 1:59:04 p.m. :: VM reference: e68bdc5a-8592-4c73-b631-77f9ba63d981
3/05/2018 1:59:04 p.m. :: Collecting guest OS info.
3/05/2018 1:59:05 p.m. :: VM is powered on.
3/05/2018 1:59:05 p.m. :: IP addresses: <REDACTED>
3/05/2018 1:59:05 p.m. :: Guest OS: <REDACTED>
3/05/2018 1:59:05 p.m. :: Checking standard credentials
3/05/2018 1:59:05 p.m. :: Connecting to guest OS via RPC
3/05/2018 1:59:05 p.m. :: Testing admin share accessibility via RPC
3/05/2018 1:59:06 p.m. :: Cannot connect to the host's administrative share. Host:  [<REDACTED>]. Account: [HyperVHostName\administrator].;Win32 error:The user name or password is incorrect.; Code: 1326;

AlexLeadingEdge
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Re: New Server 2016 Hyper-V Host, Cannot Connect To Guest

Post by AlexLeadingEdge » May 03, 2018 2:31 am 1 person likes this post

Ah! I know what has happened! The Host has an Administrator password that is different for the individual VMs. I've just updated the VMs from "default" under Guest Processing > Credentials > Set User.

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