Did you check the compatibility matrix for the supported Nutanix versions?

yes and it was supported can you suggest other solutions?

sounds like something cpu core related. ho many cpu cores and sockets does this ahvproxy have? Maybe change this and try update again? Or  Remove Proxy Role and try to deploy again?

how to validate this in ahvproxy or nutanix?

 

here’s what says in the logs

2024-09-16 17:29:09.168 8info    ] 819 8827] AgentController.TestNutanixConnection: TestNutanixConnection: started
2024-09-16 17:29:09.169 1info    ] 819 ]827] NxBackupClient.Initialize: Initialize
2024-09-16 17:29:09.169 9info    ] 819 Â827] NxBackupClient.Initialize: Initialize: using server certificate thumbprint: b3003623409F2BD115CA16B000F2E0280E4CB0792]
2024-09-16 17:29:09.179 :warning ] 819 g827] RestCli.verify_cb: Untrusted chain cert { Thumb: 3003623409F2BD115CA16B000F2E0280E4CB0792, Exp: 2012-12-04, Subj: /C=US/ST=CA/L=San Jose/O=Nutanix Inc./OU=Manageability/CN=*.nutanix.local, Issuer: /C=US/ST=CA/L=San Jose/O=Nutanix Inc./OU=Manageability/CN=*.nutanix.local }. Error: self signed certificate (depth: 0)
2024-09-16 17:29:09.423 :warning ] 819 g827] RestCli.verify_cb: Untrusted chain cert { Thumb: 3003623409F2BD115CA16B000F2E0280E4CB0792, Exp: 2012-02-04, Subj: /C=US/ST=CA/L=San Jose/O=Nutanix Inc./OU=Manageability/CN=*.nutanix.local, Issuer: /C=US/ST=CA/L=San Jose/O=Nutanix Inc./OU=Manageability/CN=*.nutanix.local }. Error: self signed certificate (depth: 0)
2024-09-16 17:29:09.613 :info    ] 819  827] AgentController.TestNutanixConnection: TestNutanixConnection: success. Status: Success. Version: 6.5.5.6
2024-09-16 17:29:09.613 2info    ] 819 827] NxBackupClient.Release: NxBackupClient::Release
2024-09-16 17:29:09.615 7info    ] 819 f827] AgentAPI.TestNutanixConnectionImpl: Leave, duration: 0.4 sec
2024-09-16 17:29:09.615 info    ] 819 i827] NxBackupAgentService.TestNutanixConnection: Leave, duration: 0.4 sec
2024-09-16 17:30:09.613 1info    ] 819 824] NxBackupAgentService.TestNutanixConnection: Enter
2024-09-16 17:30:09.613 9info    ] 819 1824] AgentAPI.TestNutanixConnectionImpl: Enter. proto.agent.ClusterConnectionInfo {
 "server_info": {
  "hostname": "172.17.200.201",
  "port": 9440,
  "username": "admin",
  "password": "******",
  "certificate": "3003623409F2BD115CA16B000F2E0280E4CB0792"
 },
 "nutanix_scsi_target_address": "172.17.200.201"
}

the cores and cpu is both 10 each

Hey
I saw a patch for Veeam Backup for Nutanix AHV Plug-In. Here is the link https://www.veeam.com/kb4654
Your error is not mentioned but it’s maybe linked.

Have you open a support case ?

No other suggestions other than the patch or a support ticket as mentioned.

Review the proxy appliance configuration by edit → right-click the Nutanix AHV backup appliance and select Properties → Next → Virtual Machine → Review the settings and save.  

https://helpcenter.veeam.com/docs/vbahv/userguide/ahv_proxy_troubleshoot.html?ver=6

alternativity, you can try remove the existing appliance and redeploy new proxy appliance.