Sending data to a remote command failed with the following error message: The WinRM client sent a request to the remote WS-Management service and was notified that the request size exceeded the configured MaxEnvelopeSize quota.
I found some info on-line related to Exchange 2010, but to resolve this in 2013 with Windows 2012 was slightly different.
In a command line (not powershell)-
winrm get winrm/config
Look for this-
MaxEnvelopeSizekb = 2000
I upped it to 8000- (Note, I had to use quotation marks)
winrm set winrm/config @{MaxEnvelopeSizekb="8000"}
୍