I configured a U7628-01 using OpenWRT recently. The wifi works fine after the firmware flash/initial configuration. But after a reboot/hard reset it stops working. The SSID is still broadcast, but no IP is assigned by the DHCP after the reboot.
Also, luci displays an error for the wifi after the reboot:
Also, after reboot, logread starts giving me this message:
daemon.warn dnsmasq-dhcp: DHCP packet received on wlan0 which has no address
What is going on?