ESP8266 Community Forum

Posted: **Sat Dec 04, 2021 6:45 am**

Hello, all.
Question from a newbie:
Various documents mention that the maximum number of connections for an ESP is 4.
I guess this limitation is due to the protocol stack implementation (?).
Does it applies also to the UDP protocol, which is connectionless?
Thank you!

Posted: **Sat Dec 04, 2021 8:16 pm**

If the ESP8266 serving up UDP has client enabled, then 3 listeners and that is the max from my experience (successfully tested) with 2-ESP32 receivers and I PC receiver running Processing.

Ray

ESP8266 Community Forum

ESPxxx maximum number of connections in UDP

ESPxxx maximum number of connections in UDP

Re: ESPxxx maximum number of connections in UDP