[Solved] Wan dhcp no internet

Installing and Using OpenWrt Network and Wireless Configuration
1

Hi

I have a netgear wndr3700v4 that has worked well with pppoe connected to an adsl modem in bridged mode.

I have just gotten hfc nbn(in Australia) installed. I changed the wan config to use dhcp instead of pppoe. The wan correctly picks up an ip address and default route, but I cannot access the internet.

Sometimes when applying interface changes ping works for about a second. There is also no interenet access directly from the router(after sshing in).

Any ideas on what is going wrong?

Cheers
Troy

2

Does the device pick a public or a private IP address on the WAN interface?
If it is private, does it collide with the IP address on the LAN interface?

3

The router picks up a public ip, but can't access the internet. It is the same public ip that I get with my laptop plugged directly into the cable modem(internet works in this scenario).

4

What is interesting is that when I click 'CONNECT' on the wan interface from within luci, I have internet access for 9 seconds before it gets cut off.

What does LEDE do when the 'CONNECT' button is pressed?

5

AFAIK, the CONNECT button just drops the connection down, and then pulls it up again.

I cannot think of any reason why your setup should not work:

  1. Have you seen anything interesting in the logs?
  2. Does your laptop have any particular software or configuration?
  3. Perhaps your ISP has a restriction and only allow specific devices to connect?
6

A reboot of the cable modem fixed things...

Thanks for the suggestions eduperez.