I'm trying to fetch task details of all the projects in my portal using Zoho rest API v2.0 through a windows service, which was working fine till last week. Now while the service runs, I'm getting error as " The remote server returned an error: (401) Unauthorized.". I have checked my authentication token and hope it might not be the problem. Please let me know what should be done to fix this error.

Anyone please help on this!!

Thanks,

Prasanna Venkatesan J