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ESP32 Thing not on network (does not acknowledge ping)

Posted: Mon Jul 02, 2018 7:45 am
by femtosystems
* Updated the Arduino ESP32 libraries via github to the latest and greatest
* Using "HelloServer" sketch (from Examples->WebServer->HelloServer)
* Tested (2) SparkFun ESP32 Things and (1) DFRobot ESP32 FireBeetle using above sketch (i.e. "HelloServer")
* Both ESP32 Things will not answer a generic "ping" request
* FireBeetle respnds to the "ping" request
* RSSI on all three boards between -54 and -56 (checked with WiFi.scanNetworks() in a different sketch

Attached: 3 snapshots: and are ESP32 Things. is a FireBeetle

==> why do the ESP32 Things indicate that they are connected to the network but cannot receive a simple ping?
==> no issues with FireBeetle using identical environment so the finger is pointing towards the ESP32 Thing as the problem


Re: ESP32 Thing not on network (does not acknowledge ping)

Posted: Sat Jul 07, 2018 11:12 am
by paulvha
Ping is (very) low level implementation in the TCP stack. A basic question: did the helloserver.ino displayed the TCP/IP addresses that you use ? what happens if you connect ? did you get the messages ?