ESP8266 Community Forum

- Thu Aug 04, 2016 3:35 pm #52138 BTW, to convert String to char * easily, there are methods provided :

Code: Select allString routername = "Testing123";
wifi_station_set_hostname(routername.c_str());


I'm using the same method in my sketches, and it is working on my side.
So, maybe the problem is on the router side, maybe it have cache an kept the old name used before.
Try to power recycle the router to see if it help.

- Fri Aug 05, 2016 12:32 am #52171

BTW, to convert String to char * easily, there are methods provided :

Code: Select allString routername = "Testing123";
wifi_station_set_hostname(routername.c_str());


I tried that but I got this error

error: invalid conversion from 'const char*' to 'char*' [-fpermissive]

- Fri Aug 05, 2016 12:03 pm #52203 Yes, you are right !
But it need a simple cast to fix the error :

Code: Select allString routername = "Testing123";
wifi_station_set_hostname((char *)routername.c_str());


- Fri Aug 05, 2016 8:35 pm #52250 This compiles, but still does not change the name seen by the router. I powered off/on the router and that made no difference. I am using AP mode, not station mode. Is this this the difference?