@Dan70bo Make sure QoS is Turned OFF and no devices set on priotised. And use Deco into AP Mode

@Dan70bo So your issue is resolved now? Your Deco is i think (EU) or (UK) version that's why your channels can't go above 100

@Dan70bo You can change channels and channel width on latest deco models and i think you have latest model. Check the link below. https://www.tp-link.com/us/support/faq/4407/

HEY TP-LINK !! Suddenly my Deco M4 start droppin connection idk why i had Deco X20 and still had same problem but the problem fixed automatically on Deco M4 but now the problem started again on Deco...

@therandwick Change your Deco mode to AP Mode and turn OFF Bypass mode in starlink from the App.

@AZUMA Change DNS server to 8.8.8.8 and 8.8.4.4