Getting error "Read ECONNRESET" when accessing documents stored in MongoDB cfs grid


We have Meteor application which connects to MongoDB and running with below configuration -
Metero version :
MongoDB: 3.2.12

Problem -
Application document attachment functionality is not working after Primary MongodB server got rebooted and secondary MongoDB server became primary.
After server got rebooted, each time when we are trying to attach a new document or access the existing document its failing and we are getting below error logged in API log.

{ [Error: read ECONNRESET]
code: ‘ESTREAM’,
errno: ‘ECONNRESET’,
syscall: ‘read’,
command: ‘API’ }…

We are using cfs gridfs.

The ECONNRESET simple suggest that MongoDB is refusing the connection but other functionality of the application is working as normal.
Any suggestion What is going wrong here ?

Thank you in advance.