DLink Dir-615 rev.H
Same situation as with the two releases before; no connection to the modem, no connection to the Inet.
Downgrade to 29519 and everything works fine.
Router: D-Link DIR-300 rev. B
Firmware: 29721 - 2016/05/18
Kernel: 3.2.80
Status: some problems
Reset: yes
Errors: NAT does not work
root@DD-WRT:~# iptables -L
iptables v1.3.7: can't initialize iptables table `filter': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
Changed to: 29519 - 2016/04/25, seems to work fine.