Hi @isabellablumberg, welcome to the Sonos Community!
Sorry to hear that your Play:1 keeps disconnecting. Like @Stanley_4 suggested, we need some more information so we can provide accurate troubleshooting steps.
First, we’ll need to know how you’re playing to your speaker, as the Play:1 can’t directly connect to a computer. Are you using the Desktop Controller or are you streaming via a music service’s direct connection?
If you’ve ‘reset’ as in factory reset, and the Play:1 is your only speaker, then any diagnostic information on the speaker will have been lost and you’ll have to set it up as a new system. Our setup guide will take you through the steps to get your speaker back online.
I hope this information helps!