Error 41: network connection timed out

Hi,

We have encounter a backup error "Error 41: network connection timed out"   

The clients is linux and not new clients for nbu. All running version 8.2 and the master is clustered.

The type of backup is VM backup with updated version of vmware.

Jul 28, 2021 9:11:02 AM - Error bpbrm (pid=11068) cannot send mail to **********
Jul 28, 2021 9:11:02 AM - Info bpbkar32 (pid=0) done. status: 41: network connection timed out
Jul 28, 2021 9:11:02 AM - end writing; write time: 0:00:14
network connection timed out  (41)

Noticed that when we use the media 2 we encounter the issue but successful backup when we use the media 1.

The hostfile of 2 media's are same and also the bp.conf.

thank you for help.