After upgrading the vSphere environment (ESXi and vCenter), vSphere replication for the VMs may stop working.
On Site Recovery page the below errors may be seen for the replicating VMs:
"VM-name: VM-name replication error: No host can be used to access datastore path '[datastore_name] VM-name/VM-name.vmdk'."VMware vSphere Replication 8.8.X
From the vSphere Replication server's /var/log/vmware/hbrsrv.log the below can be seen:
2025-02-13T05:06:15.877Z error hbrsrv[76717] [Originator@6876 sub=AgentConnection opID=hs-xxxx-xxxxxx] Connection failed to agent host-xx/hostd (x.x.x.x):--> Unexpected element tag "vpStatusCheckSupported" seen-->--> while parsing serialized DataObject of type vim.host.Capability--> error parsing Any with xsiType HostCapability--> at line 7, column 41-->--> while parsing return value of type vim.host.Capability, version <vim.version.unstable, internal, xxxxxxxx>--> at line 7, column 0-->--> while parsing SOAP body--> at line 6, column 0-->--> while parsing SOAP envelope--> at line 2, column 0-->--> while parsing HTTP response for method GetCapability--> on object of type vim.HostSystem--> at line 1, column 0
Upgrade the vSphere Replication to a supported version as per the interoperability matrix.
For instructions on upgrading the vSphere Replication, follow Upgrade vSphere Replication Appliance.