After consuming course assessment for more than 1hr the session timeout is happening

[sachinb80]

We are using 5.1 version of sunbird
We are facing an issue of session timeout.
After consuming the course assessment for about 1 hr 18 min the session timeout is happening.
And the assessment is starting again.
So we need to know that can we increase the session time? if yes how?
Or how can we resolve this session timeout issue
Here is the Screenshot for reference i have recorded. Please check the last 2 min of the video
@vinukumar-vs @rajeevsathish @rajeshkumaravel @Krishnaj20 @pallakartheekreddy