Can someone point me to right direction with debugging an issue with the guest WLAN setup. I follow the instruction at https://wiki.openwrt.org/doc/recipes/guest-wlan-webinterface. However, when I try to connect to the guest network using my Android phone, I am getting the "Failed to obtain IP address" message. Also, I am seeing this message on the router log.
Sat Feb 4 18:03:20 2017 daemon.warn dnsmasq-dhcp: DHCP packet received on wlan0-2 which has no address
I triple check all the configuration and firewall setting. They seems to be correct. So any idea what I did wrong and how I can fix this problem? I try stopping firewall to see if it's firewall related. That didn't help, same message on the phone and router.
BTW, I also have a WLAN set on the same router for LAN access working fine with radius auth using EPA-TLS. I can get an IP and access the LAN and Internet no problem.
Here's the wlan0-2 interface.
gw:/etc/config# ifconfig wlan0-2
wlan0-2 Link encap:Ethernet HWaddr 86:xx:73:xx:A5:xx UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:126 errors:0 dropped:0 overruns:0 frame:0 TX packets:126 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:17752 (17.3 KiB) TX bytes:20286 (19.8 KiB)
gw:/etc/config# ip addr list wlan0-2
34: wlan0-2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000 link/ether 86:xx:73:xx:a5:xx brd ff:ff:ff:ff:ff:ff