Technical Support | Broadband | Harmonic
Broadband Technical Support
Need help? Use the Help Center to submit and track support requests. Use the cOS Portal to view your system and manage access.
Get support in four easy steps
Submit and track tickets
Select the relevant
request type
Complete the form and
submit your ticket
Track updates under
"View all requests"
FAQs for technical support
Getting started
How do I access the broadband Help Center?
Sign in using your Harmonic Okta credentials.
I can’t log in. What should I do?
Contact your organization’s Customer Manager (cOS Portal admin). They can help with access and password resets.
How do I reset my password?
Password resets are handled by a Customer Manager in your organization via user management in cOS Portal (reset password).
Account settings
How do I change my security question?
Log in to your Harmonic Okta dashboard, go to settings, and edit the forgotten password question. It’s required for password recovery.
How do I change language or time zone?
In the Help Center, open your profile (top right) → Profile, then update language and time zone preferences.
Support tickets
How do I create a support ticket?
In the Help Center, select the relevant portal, choose the request type, complete the form fields, and submit.
How do I onboard a new user?
A Customer Manager can invite users for your organization in the cOS Portal. Personal email addresses are not allowed (organization email only).
How do I view my open tickets or past requests?
In the Help Center, click View all requests, or open your profile menu → Requests.
Contact support
If you can't access the Help Center or need assistance, contact support:
Phone: +1 (833) 817-7030
Email: cos-support@harmonicinc.com
Take your technical support further
Our teams can support you in many ways.