@MadAlex 

Hello,

Thank you very much for your patience.

Could you please help us get to check the following information:

1. If you did not stream on twitch, would the internet still be unstable?
2. Is your streaming device, like computers connected to the router via cable, or Wi-Fi?
3. How to recover the internet when it drops out, reboot the router, or it would come back automatically?
4. When the streaming device kept dropping, would other devices drop the connection too?

Please also refer to the following suggestions:

1. Change the wireless setting on the router, such as channel 11 and channel width 20mhz for 2.4ghz;
2. Change the DNS address to be 8.8.8.8/8.8.4.4 on the router;

Thank you~