Openmediavault and urbackup gui client

Hello

I have actually installed urbackup client on openmediavault server to enable backup. Urbackup client with gui works perfectly and backup is being done without any problem. The only issue is that sometimes, the network connection hangs when backup is being performed though I removed the DNS, the problem still persist. When the client is shutdown internet connection gets back to normal. Any idea, how can i solve this issue.

Thanks
Ziyaad