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Zoom Troubleshooting


If you run into issues while using or attempting to use Zoom, please review these common troubleshooting steps or solutions.

Table of Contents

Zoom Quick Checklist

  1. Is your Zoom client software up-to-date? If your Zoom client is out of date, some features may not work. Also, if your Zoom client is too old, you will not be able to connect to some Pepperdine meetings. Check for Zoom updates and then try again.
  2. Are you registered for and signed in with the correct Zoom account (in both the Zoom app and the web)?
    • Are you a 2PEP Online Program student or faculty member? Please use the 2PEP/2U Zoom account and log into that separate Zoom service. Contact 2PEP Support if needed.
    • Are you using your official Pepperdine University Zoom account? For non-2PEP programs, all students, faculty, and staff should use their Pepperdine Zoom account instead of a personal Zoom account. Register or sign in to Pepperdine Zoom.
    • Have multiple Zoom accounts? Nowadays, we may have a personal Zoom account, school Zoom account, and work Zoom account, to name a few. After you finish a Zoom meeting, develop the good habit of always signing out of the Zoom app (computer or mobile). This way, you can always sign back in with the correct Zoom account for the intended meeting.
  3. Does your web browser allow pop-ups? When you attempt to open Zoom meeting links, your browser will need to open a new tab or window for the meeting request. Be sure that you allow pop-ups for the sites or services in question.
  4. Did you try a different web browser? Some web browsers may block features that are necessary for Zoom to launch the client application. Try another web browser (e.g. Google Chrome or Mozilla Firefox) and see if the problem is resolved. If it works in another browser, then you can explore what setting, add-in, or security option is preventing Zoom from working properly in your preferred browser.
  5. Have you cleared your web browser cache and cookies? Sometimes our browsing data can become corrupt or new updates require that we clean out the old browsing history to allow the new web pages and features to run correctly. Clear your browser cache and cookies and see if this resolves the issue.

Common Issues and Fixes

Cannot assign someone as an "alternate host" in a Zoom meeting or grant scheduling privileges

Issue: A community member wants to add a colleague as an "alternate host" for a Pepperdine Zoom meeting but is receiving the error, "Unable to assign '[the intended email address]' as an alternative host because the user cannot be selected at this time." Or they are attempting to grant someone scheduling privileges, but cannot do so.

Requirements: You may only add someone who has already registered for an official Pepperdine Zoom account. You cannot add someone from outside of the organization, and you cannot add someone who hasn't already registered for an official Pepperdine Zoom account.

Solution: Speak with the person you wish to add and ensure they register for an official Pepperdine Zoom account. This process should take the person 1-2 minutes. After they have successfully created their Pepperdine Zoom account, then you may add them as an alternate host to a meeting.

Important! The person should not go to the main Zoom website and sign up for a basic Zoom account with their Pepperdine email address. This will not work. Only registering by visiting, selecting "Sign In," and logging in successfully with Pepperdine CAS will generate the appropriate account. If the Pepperdine community member needs help, please direct them to the Pepperdine Zoom registration instructions or have them contact Tech Central at 310.506.4357.

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After a name or email change, I can't see past meetings or recordings

Issue: Zoom accounts are based on email address, not campus-wide ID (CWID) or NetworkID (username). When a name changes, this may change the primary account email address. If that happens, then when the person logs into Pepperdine Zoom, a new (blank) account will be created with the brand new email address.

Solution: The impacted person should contact Tech Central at 310.506.4357 or submit an online support request. Explain that a name or email address change has happened and the older Zoom account (old email address) needs to be transferred to the new Zoom account (new email address). The IT department will confirm the change and then follow the Zoom process to remove the old account and transfer its meetings and recordings to the new account.

Important: The new Zoom account must exist before a transfer can happen. The person should log into and Sign In to the Pepperdine Zoom web portal before submitting a request to Tech Central.

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Courses Zoom Pro tool and "Instructor's Email is Invalid"

Issue: A professor attempts to use the Zoom Pro tool and receives a message that says that the instructor's email is invalid. This is because the professor has not registered their official Pepperdine Zoom account.

Requirements: The professor must have an official Pepperdine University email address and an active network account. The professor must have already created their Pepperdine Zoom account.

Solution: The professor should create a Pepperdine Zoom account.

  1. Visit
  2. Select "Sign In"
  3. Follow the prompts to authenticate with Pepperdine's Centralized Authentication System (CAS) which will then create the Zoom account.
  4. Sign out of Courses.
  5. Return to Courses and sign in.
  6. Return to the class site and select Zoom Pro.
  7. The tool should now work as expected.

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Courses Zoom Pro tool and the Apple Safari web browser

Issue: You receive a message like "Redirect to Zoom... Cookies are not supported. Please refresh this page." This is happening because the Safari web browser is preventing the necessary cookies so that Courses can communicate with Zoom.

Solution: The community member will need to change their Apple Safari web browser settings.

Apple macOS computer
  1. Open the Safari web browser
  2. Select the "Safari" menu at the top left.
  3. Select "Preferences."
  4. Select the "Privacy" tab.
  5. Make sure that the following options are unchecked or deselected:
    • Prevent cross-site tracking (turn this off)
    • Block all cookies (turn this off)
  6. If necessary, close Safari, reopen it, and then try the Zoom Pro tool again.
Apple iPad
  1. Open the iPad Settings app.
  2. Scroll and select the Safari settings.
  3. Scroll and disable/turn off "Prevent Cross-Site Tracking."
  4. Verify that "Block All Cookies" is disabled/off.
  5. Close/exit the Settings app.
  6. Close Safari and then open Safari again.
  7. Try the Zoom Pro tool again.

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Courses Zoom Pro tool and the Mozilla Firefox web browser

Issue: A professor or student is attempting to Start or Join a Zoom meeting in the Zoom Pro tool of Courses. When the link opens a new window, the Zoom website reports, "Unauthorized. Sorry, your session was expired. Please refresh the page or login again. 401." This is happening because the Firefox web browser is preventing the necessary cookies so that Courses can communicate with Zoom.

Solution: The community member will need to change their Mozilla Firefox web browser settings.

  1. Open the Firefox web browser.
  2. Visit
  3. In the web browser address bar, select the "Shield" icon next to the URL.
  4. Deselect or toggle off the feature "Enhanced Tracking Protection" (When the feature is off, the message should read, "Enhanced Tracking Protection is OFF for this site.")
  5. Sign out of Courses and then sign back in.
  6. Return to the class site and go to the Zoom Pro tool.
  7. Select "Start" or "Join" for the intended meeting.
  8. The Zoom website should now prompt you to open the meeting in your client software as expected.

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Can't sign into Zoom with multiple devices (e.g. two computers)

Issue: Someone is trying to sign into the Zoom client app on two computers or two mobile devices, and Zoom keeps signing out the additional devices.

Solution: This is how Zoom has designed its software to work. Zoom only allows the same account to sign into one computer and one mobile device at the same time. This means that you can sign into one desktop or laptop, plus one smartphone or tablet at the same time, but you cannot sign into two computers or two mobile devices at the same time. If the intent is to monitor your meeting, then launch the meeting on the computer and then monitor the meeting from a mobile device, like a mobile tablet or smartphone.

Please refer to Zoom's support article titled, "Can I use Zoom on multiple devices?"

Tip: If you are using two devices in the same space (e.g. one computer and one smartphone), be sure to mute the audio of the other device to avoid feedback.

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Screen share and no computer audio/sound

Issue: When trying to screen share a video or audio file, the participants say that they cannot hear anything.

Solution: During a meeting when you click the "Share Screen" button, you must select the checkbox at the bottom, left of the share window for "Share Sound." You will also notice a small arrow next to this option which will allow you to switch between "Mono" or "Stereo" audio.

Please refer to Zoom's support article titled, "Sharing computer sound in a screen share."

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I'm having problems with 2U Zoom (aka Digital Campus Zoom, formerly 2PEP Zoom)

Issue: A student or professor is having an issue using the 2U Zoom Service (formerly 2PEP Zoom).

Solution: Please contact 2U Support for any questions about the 2U Digital Campus LMS or 2U Zoom. Only the 2U Support team can help with the separate Zoom service that they manage.

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See Also


Tech Central

Phone: 310.506.4357 (HELP)

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