ESP8266 Community Forum

I can ping the esp from other wifi units. And I can ping other wifi units from the esp.
But units on my lan can not ping the esp and the esp can not ping the lan units.

A wifi connected PC on the same wifi can ping the other lan and wifi units.
And the lan units can ping the wifi units. (except the esp).

If I connect the esp to an another wifi router I can ping lan units on this router and the lan units can ping the esp.

So I guess something in the first router block or are not compatible with the esp.
(Since it is limited more the other wifi units). No rule on the router should be present for this.
Its all DHPC.

Any work a round or explanation on this ?

I think your wifi devices are not on the same network than the lan devices.

Try to check IP adresses to see