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# How to Fix One-way Audio and Double Login Issue

If you’re experiencing one-way audio or no audio at all during calls on KrispCall.com, one possible cause could be being logged into multiple versions of KrispCall on the same device.

This can occur when users are simultaneously signed into the KrispCall web app and web-based CTI integration (such as HubSpot or Pipedrive) on the same computer, often without being aware of it.

When multiple sessions are active, it can lead to audio conflicts. For example, your headset's input might be connected to the CTI, while the output is linked to the web app, or vice versa. This mismatch often causes one-way audio or completely silent calls.

**How to Fix It:**

* Ensure you are logged into only one KrispCall version at a time on your computer.
* Log out of any other instances running on the same computer.
* If you're unsure whether you’re logged in across multiple versions, or if you're unable to verify it yourself, please reach out to our [__Support Team__](https://krispcall.com/contact-us/). We’ll gladly check for you and help resolve any login conflicts or related issues.