Skip to main content
commvault.com commvault.com

Hello,

I have clientes with commvault agent installed but no register on commcell. When i try register the client with the option “Fetch the configuration information from the client that is already installed in deocupled mode”.

 

from the client's cvfwd.log log file i see that following

6416 07a0 03/11 12:17:10 DT:00043 CN:92536 2COMMSERVER_ID->CLIENT_HOSTNAME:cvd] ERROR: Client connection failed on CLIENT_NAME: No direct tunnel to CLIENT_HOSTNAME


6416 07a0 03/11 12:17:19 DT:00044 CN:92538 2local->COMMSERVER_ID:AppManager netw] Successfully completed client connection {afcbd2b3-ae18-b5a3-2f6e-12e4be337e94}


6416 07a0 03/11 12:17:50 DT:00044 CN:92539 2local->COMMSERVER_ID:AppManager netw] Successfully completed client connection {455e23f1-a693-5152-5a2e-4a1dc262f5f4}

 

the client port 8400 is listening

netstat -ano |findstr 8400
  TCP    0.0.0.0:8400           0.0.0.0:0              LISTENING       1480

 

What could be happening?

 

Regards

 

 

Hi ​@EJIE,

In-order to resolve the 'No direct tunnel to CLIENTNAME' error, could you please check the below :


- Run a cvping test between the client & the CommServe to verify connectivity over port 8400 & 8403.
- Ensure that there are no firewall rules blocking traffic between the client and the server.
- For the de-coupled clients, go to client properties -> Network Configuration > Network Summary and check if there are any predefined routes confirmed from a Client Group to which client is a part (if added).

- Create a persistent tunnel between CommServe and CS using this - Setting Up a One-Way Direct Connection (Server to Client) Using a Predefined Network Topology

- Restart Client Service.

- Attempt to register the client from CommCell Console or Commandline - Registering Client Computers

 

Regards,
Dheeraj

If your client is already installed but won’t register due to connectivity issues, the likely cause is firewall restrictions blocking CommServe’s access.

Quick fix: Create a pseudo client for that machine, and add one-way firewall rule allowing inbound TCP traffic from the CommServe to the client on port 8403 (or your configured tunnel port).

Steps:

  1. Open port 8403 on the client firewall for the CommServe’s IP.

  2. From the CommServe, run cvping -client <client_name> -port 8403 to verify connectivity.

  3. Once connectivity is confirmed, register the client via CommCell Console as usual.

 

Reply


Terms & ConditionsCookie settings