Note: Troubleshooting articles are only available in English.

Issue description:

You are experiencing a long delay in establishing a Rainbow audio/video communication (WebRTC call) from a DELL computer (may also occur with other PC brands using Realtek High Definition audio chip)

Root cause:

This issue can be linked to the Realtek High Definition audio driver version.

How to fix the issue:

We strongly recommend that you update the Realtek High Definition audio driver. Upgrade can be found at https://www.dell.com/support/home/fr/fr/frdhs1?app=drivers&~ck=mn.

Enter your DELL model (e.g. E5450 or 5450 – model number is usually written on your computer on a label on the back), then download the driver on your machine and launch the setup.