Errors "Unable to retrieve pairs from extension server" on Site Recovery window

Products

• VMware Live Recovery

Issue/Introduction

You get the following errors when connecting to the Site Recovery window:

"Unable to retrieve pairs from extension server at https://xxx.xxx.xxx:8043". 

"Unable to retrieve pairs from extension server at https://xxx.xxx.xxx:443/drserver/vcdr/vmomi/sdk".

Environment

VLSR

Cause

You removed the Site Recovery and vSphere Replication appliances without unregistering them first.

Resolution

• Use the Managed Object Browser (MOB) to clean up the old VMware Live Site Recovery registration in Lookup Service after deleting the appliance.
• Verify that you have the credentials of a vSphere administrator.
• If you delete the VMware Live Site Recovery Appliance before you unregister it from the environment, you cannot use the VMware Live Site Recovery virtual appliance management interface (VAMI) to unregister VMware Live Site Recovery from vCenter Server.
• Log in with vCenter Server credentials to https://<vCenter_Server_address>/lookupservice/mob/?moid=ServiceRegistration&method=List&vmodl=1.
• To search for the VMware Live Site Recovery registrations, replace the value in the Value field with the following text and click Invoke Method.
  <filterCriteria>
     <serviceType> 
      <product></product>
      <type>vcDr</type>
     </serviceType>
  </filterCriteria>
• Look for the old VMware Live Site Recovery registration and copy its serviceId value.
• Repeat for type vrUi and com.vmware.vr.vrms
• Navigate to https://<vCenter_Server_address>/lookupservice/mob/?moid=ServiceRegistration&method=Delete.
• To delete the service registration, enter the serviceId value and click Invoke Method.

Additional Information

As documented at Clean up the vCenter Lookup Service