Hi @Gaz61. If you have a dual-band wifi network, try creating a guest network using only the 2.4GHz connection. Verify that the [ports and protocols](https://support.ring.com/hc/en-us/articles/205385394-Protocols-and-Ports-Used-by-Ring-Devices) used by Ring devices are open on your network. We also have a lot of troubleshooting steps for setup failures [here](https://support.ring.com/hc/en-us/articles/217240386-Fixing-Repeated-In-App-Setup-Failures). Once the setup is complete, the Chime Pro should be installed at around a halfway point between your router and the Ring device you're connecting it to. If you are still unable to set up your Chime Pro after following the troubleshooting steps above, please follow up with our support team at one of the numbers available [here.](https://support.ring.com/hc/en-us/articles/360036196372-Contact-Us) If you are outside of the US, please visit [here ](https://support.ring.com/hc/en-gb/articles/213608406)to see how to contact support.