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title: I am seeing the error Request not found or Collection not found
description: >-
You are experiencing the following issue I am getting the error message
Request not found or Collection not found . Why? This error usually indicates
an issu...
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## You are experiencing the following issue

I am getting the error message *Request not found* or *Collection not found*.

## Why?

This error usually indicates an issue fetching information from our Postman servers to your device. It is usually caused by VPNs or proxies.

## Unblock yourself

* Ensure you have allowed all the Websockets required for Postman to establish a connection with the Postman servers:
  * The full list can be found here: [Use Postman behind a firewall](/docs/getting-started/installation/installation-and-updates/#use-postman-behind-a-firewall) .

* **Note:** Wildcards only catch subdomains, not more complex patterns, such as the ones used in our websockets.

* In a few cases, the error may only be present on the Desktop application, this may be caused by corrupted files in your local installation.
  * To resolve this, follow the steps highlighted in our Support Article below:
    * [How to remove local data](/help/faqs/troubleshooting/how-to-remove-local-data)

## Still need help?

[Submit a support request](https://support.postman.com/hc/en-us/requests/new/) and include the following information:

* Whether or not you can replicate the issue with another collection or workspace.

* The collection ID  or request ID.

* **Note:** To either find your collection or request ID, select your collection or request and select the Info  button on the right end panel. ![5d8648d2-33aa-4f75-9181-2423b6b73384.png](https://files.buildwithfern.com/postman.docs.buildwithfern.com/8cf791c15a499e4ed1c1375e539b27fa361eea98d55c2a0824a6767944fd1d7f/docs/assets/help/4415445950743.png)

* A copy of your [application logs](/help/faqs/troubleshooting/how-to-open-my-logs-directory) .

* A copy of your [HAR files](/help/faqs/troubleshooting/how-to-get-logs-from-the-postman-web-app) recorded while you are trying to open the collection or the requests.

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Have more questions? [Submit a request](/help/submit-request)

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