@me-no-dev I did a bit of reading and discovered that. Stopping it and restarting solves it. I'm wondering if we can do something about it. The wifiudp class inherits from the class so u can stop all and stop all except. I'm wondering if we can extend that to the udpcontext so that they can be stop started and paused, as there are plenty of libs that role their own udp implementation using just udpcontext and not wifiudp.