Hi, In some AP router(I'm using AnyGate ..), DSWifi can't get IP Address from the DHCP Server... So, I changed the DHCP source code in "arm9/source/sgIP_DHCP.c". If you any problems, send me feedback .... You can get the changed source code in here . 1. In sgIP_DHCP_Start function, remarks the setting to non-blocking socket .. /* i=1; ioctl(dhcp_socket,FIONBIO,&i); */ 2. In sgIP_DHCP_Update function, use the select function struct timeval tv; fd_set readfds; tv.tv_sec=1; tv.tv_usec=0; FD_ZERO(&readfds); FD_SET(dhcp_socket, &readfds); if(select(dhcp_socket+1, &readfds, NULL, NULL, &tv) <= 0) break; l=recvfrom(dhcp_socket,p,sizeof(sgIP_DHCP_Packet),0,(struct sockaddr *)&sain,&n); if(l==-1) break; Had some trouble with that download link; attached here for convenience. sgip_dhcp_hisona.zip
