not sure if I’m posting in the right section ……

Please help. I have a R7350 Nighthawk system with download speed 411.12 Mbps & upload 22.13 Mbps. I have (2) Sonos one SL. The problem is after playing for an hour the music stops. The light on the top of the speaker is white. I have made about 10 calls when submitting diagnostic code. At first I was told to contact my network provider . Changed channel setting still no difference. All speakers show on my network & are on 2.4 GHZ. speakers are about 15-20 feet from router open floor plan. Not to sure what to do at this point. Any assistance would be appreciated. Extremely frustrating when you call and it like they are reading off the same que card. The latest was told to delete everything and reinstall ...yup same result….Please help!!