The free job boards (Monster, Glassdoor.com, indeed, Jobs.com and Jobted) will keep your post active for 120 days. After 120 days, the job will be removed.
The job boards read off the job's creation date within TriNet Applicant Tracking. Therefore, you will need to clone the job for a new creation date to be generated (Cloning a Job Post). After you have cloned the job, the cloned job post will appear on the free job boards within 24-48 hours. Please move the original job post to "Closed" status.
If you need assistance, please contact Customer Support: employees@trinet.com or 800.638.0461.