T300RS shall work with S1.
Please answer the following questions as many as possible,
so we can provide better support for you.
1. ReaSnow S1 firmware version/ APP version
2. your console and game
3. When did you purchase this ReaSnow S1?
Does it ever work properly?
4. The color and state(breathing or stable) of the LED indicator on ReaSnow S1 when you are in trouble?
5. Which peripherals are connected to ReaSnow S1? please provide the specific model and producer.
PS: All peripheral should be connected to ReaSnow S1 first, before connecting it to a game console.
6. which config has been activated in ReaSnow S1 when you are facing this trouble?
7. a video to show us your trouble will be better
you can upload the video to youtube or other file-sharing servers, and send us the link.