> 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/support-1/troubleshooting-guides/desktop-client/failed-to-parse-ip-address.md).

# Failed to parse IP address

<figure><img src="/files/t0wIukTFyPWglDNVEYNZ" 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.