Wifi and Sonos Troubleshooting

I need help troubleshooting my existing Wifi and Sonos system.

Key Issues:
- Trouble with the Mesh system (installed by Naturally Wired)
- Sonos device not connecting

Ideal Skills & Experience:
- Experience with Mesh Wifi systems
- Expertise in Sonos setup and troubleshooting
- Networking knowledge

Looking for a quick and effective resolution.