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# Browser Extension login error: invalid_grant

Use case:
You are trying to login and you receive the following error message: 

![Error toast "invalid_grant"](https://storage.crisp.chat/users/helpdesk/website/348acba567d60c00/image_141ocng.png)

### What causes the Salesforce IP restricted error?
This Salesforce OAuth error can happen because of a trusted IP range policy that is in place for your Connected App.

### Resolution
1. First, you can try relaxing your Connected App’s IP policy. On your Salesforce account, go to Apps → Connected Apps → Manage Connected Apps → {{YOUR APP}} → Edit Policies and select Relax IP restrictions under the dropdown in IP Relaxation.

![](https://storage.crisp.chat/users/helpdesk/website/348acba567d60c00/image_9v8vei.png)
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