> For the complete documentation index, see [llms.txt](https://docs.defguard.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.defguard.net/2.0/support-1/troubleshooting-guides/desktop-client/failed-to-parse-ip-address.md).

# Failed to parse IP address

<figure><img src="https://2426002228-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FqPYuWxfmxFk6sz1LLLwd%2Fuploads%2Fgit-blob-b4a8c48720f41196691d179efc43c41df9484968%2Fimage.png?alt=media" alt=""><figcaption></figcaption></figure>

This error indicates that the desktop client version is too old to communicate with the current core or Edge services. The client receives a response format it does not understand and fails to parse it.

Update the desktop client to the latest stable release: <https://defguard.net/download/>

After updating, retry the connection. No additional configuration changes are needed.