Cannot connect to Target – something changed. b… |VMware Communities

Kia ora.


I had a working vSphere Replication source to target. Replicating between 2 replication appliances at each end, 8 virtual machines. working fine. (differen’t vCenter and SSO).

I used a fully privileged SSO service account to connect. That was Monday.


I came in on Tuesday and with no other changes implemented in vSphere I suddenly cannot connect from the source site to the target site. it prompts for credentials, with populated values, then simply returns “not Connected” in the Target Sites list.

i hopped onto a source site vREP appliance and could ping the target site vREP appliance fine.


i then logged into the target vCenter, went to the “Target Sites” list and attempted to connect the ‘source site’. Entered privileges for SSO and it worked fine. immediately. i of course don’t want to replicate in this direction lol.


I rebooted the replication server, then appliance at target then source end. no change.

Existing replications, set to RPO of 2 hours, have been running fine in the background. i of course cannot ‘initiate’ a sync.



Is this familiar to anyone? has anyone had this problem occur? would this be related to networking at all despite the successful ping?


of note, around the same time a networking issue ‘was resolved’. that being unable to ping the gateway on the source site, over a stretched network to target site, from a VM on the target site. But could from the source site ping the a target vm on the stretched network. nothing else of ‘note’ has occurred around this setup.

thanks for any assistance.




Using versions below: This is all temporary for purposes of a migration. then it will be stripped/collapsed and ESXi upgraded to 6.7 and put underneath a vCenter 6.7.

Source: VMware ESXi, 5.5.0, 1746018, vCenter Version Build 14020092.

Target: VMware ESXi, 6.5.0, 14320405, vCenter Version Build 14020092.

VMware vSphere Replication


VMWare-vSphere_Replication-6.5.1-14002386.ISO The web link VMware Knowledge Base for vSphere Replication build numbers has missing.

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