Full Back up over to Network failed due to unknown network error 59

I am recently seeing the Unknown Netowrk Error 59 which saves the full back ups to a file share on some of the servers . The back ups happens at different times. Ola Halengren scripts are being used currently and the sql server edition used are 2012, 2014 enterprise edition. I see there are suggestions for to create a DWORD with name ‘Sesstimeout’ and value 360 in HKLM\SYSTEM\CurrentControlSet\Services\lanmanworkstation\parameters. My question is should we create this on the target server (file share) or the server from where the sql server resides