Hi @wildejon.

Welcome, thank you for reaching out to Sonos Community, We appreciate your time and effort in posting your concern here in our community.

Few things you can try to check wifi interference that might cause the application to slowly load in your phone.

Next, I’d also be tempted to do a network refresh, by unplugging all Sonos devices, then rebooting the router. When the router comes back up, plug back in the Sonos devices wait for 1-2 minutes, and test it again.

Let us know if it works. If you need help with any other information, please be sure to let us know.

Thanks for the reply :)

I’ve done all that and also wall mounted the Boost away from anything else.

It took around 7-8s to full load the ‘My Sonos’ page, is that deemed acceptable? I’m not sure what I should really help hoping for :)

Thanks!

Hi @wildejon,

Thank you for reaching back to Sonos Community.

I would like to recommend calling our customer phone support on this so you can be assisted with more thorough and in-depth troubleshooting steps as well as remote diagnostics that can be remotely gathered from your Sonos devices with your permission. 

If you need help with any other information, please be sure to let us know.