From: tnp@invalid.invalid   
      
   I am passing this along so it might be somwhere searchable if anyone has   
   the same problem,   
      
   Basically my PICO Ws were not reconnecting to the Wifi after loss of   
   Wifi access point.   
      
   This, however seems to work   
      
   int main()   
   	{   
   	int ret;   
   	struct tcp_pcb *connection;   
   	char buf[2048];   
   	stdio_init_all();   	   
            initialise_adc();   
           if (cyw43_arch_init_with_country(CYW43_COUNTRY_UK))   
   		{   
                      printf("Wi-Fi init failed");   
                     return -1;   
   		}   
   	cyw43_arch_enable_sta_mode();   
   	set_hostname(hostname);   
   	sleep_ms(20);   
   	printf("THERMOMETER FOR %s\n",hostname);   
           while (TRUE)   
   		{   
   // *check wifi is up and connect/reconnect as necessary*..   
   		while((cyw43_tcpip_link_status(&cyw43_state,CYW43_ITF_STA)) !=   
   CYW43_LINK_UP)   
   			cyw43_arch_wifi_connect_timeout_ms(ssid, password,   
   CYW43_AUTH_WPA2_AES_PSK, 20000);   
   // do your stuff here...   
            sleep_ms(6000);   
   // rinse and repeat..   
   		}   
   	}   
      
   The key issue is that   
   cyw43_tcpip_link_status(&cyw43_state,CYW43_ITF_STA); will not return   
   CYW43_LINK_UP until *everything* is sorted out including DHCP assignment   
   of an IP address...   
      
   Fingers crossed this is now reasonably bullet proof.   
      
      
   --   
   New Socialism consists essentially in being seen to have your heart in   
   the right place whilst your head is in the clouds and your hand is in   
   someone else's pocket.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)