Regarding error "ERROR: Cannot download Running config : Connection Refused by"

Hi all,

Hope you are doing good.

I Kaustubh Chavan using Solarwinds ( version  for 7.0.2) for auto backup of network devices on daily basis  but getting below error for few of the devices & else are running perfect.

Error is as follows :

Switch-XXXX (X.X.X.X):

ERROR: Cannot download Running config : Connection Refused by X.X.X.X

As it is getting complicated because same set of other network devices are running good & others are not.

Can someone please help me to get rid off this error.

Additional info : Using SSHv2 to fetch backup from devices

Also let me know how to run test script for particular device to verify.