ESP8266 Community Forum

String host_name="ESP3";

WiFi.hostname(host_name);

Doesn't work ???

What do you mean "not working" ?

Does your router shows that ESP3 hostname in the IP leases list ?

Don't expect to be able to do "ping ESP3", it won't work since the DNS doesn't know this hostname.
Use mDNS service on your ESP, install Bonjour on Windows, and then "ESP3.local" will be resolved.

martinayotte wrote:What do you mean "not working" ?

Does your router shows that ESP3 hostname in the IP leases list ?

Don't expect to be able to do "ping ESP3", it won't work since the DNS doesn't know this hostname.
Use mDNS service on your ESP, install Bonjour on Windows, and then "ESP3.local" will be resolved.

The router shows other names. Esp Server and the dns name is ESPxxxxxx. xxxxxx is the end of the mac adress

Are you doing the WiFi.hostname("ESP3") before doing the calls to WiFi.mode(WIFI_STA); and WiFi.begin(ssid, password); ?

For me, it is working fine, notice the name I've choose still contains end of MAC, but this is what I want :



About DNS, as I said earlier, most routers doesn't take care of adding new hostnames, you need to use mDNS with Bonjour to make that work, like mine above with "ping MyESPAP-192B86.local" .