Posted: Mon Mar 27, 2017 7:54 Post subject: RT-N66U no ethernet ports active after flashing
I'm new to DD-WRT but have successfully flashed a number of Linksys E900s for my site. I decided to put a better main router in and after researching on the forums bought an Asus RT-N66U.
I have flashed it successfully with:
dd-wrt.v24-29134_NEWD-2_K3.x_mega_RT-N66U.trx
The problem is that after flashing, the ethernet ports are disabled. WiFi works fine and I can connect to the router over WiFi.
I found this solution to the ethernet ports issue in the forums:
Is there any way that this command can be run without opening the router and going the UART route? Or any other way to get the ethernet ports responding?
Joined: 18 Mar 2014 Posts: 12835 Location: Netherlands
Posted: Mon Mar 27, 2017 11:30 Post subject:
I do not have that router so I can only give you general advise.
nvram variables can be set from the command prompt.
For starters telnet to your router and issue:
1,2,3,4 are the LAN ports, 5 is the CPU internal default, so this basically connects the LAN ports tot the switching fabric, for some routers the CPU internal default is indeed 8, and then you can correct this by issueing the following from the command prompt:
Code:
nvram set vlan1ports="1 2 3 4 8*"
nvram commit
Be aware that vlan2ports should probably also be
Code:
0 8u
instead of
Code:
0 5u
.
I am not an expert so wait for confirmation from somebody who has experience with this router.
Which seems to me to be correct, but I'm far from really understanding how this all works...
The output of arp shows me the wireless client connected (that I'm using to SSH in) on br0, and the ethernet client (fixed IP) connected on vlan1.
The ethernet client isn't able to ping the gateway at all, even with a fixed IP, and if I don't fix the IP address it's getting a generic 169.x address as if the DHCP isn't working.
Think it's solved. I was doing a 30-30-30 reset, but it seems this router to reset the NVRAM you hold the WPS button while switching on. After that, I re-flashed and the dd-wrt build worked fine first time.
If anyone finds this thread, the process I went through was:
1) NVRAM reset by switching the router off, holding the WPS switch in, then switching on. Hold WPS for ten seconds to clear the NVRAM.
2) Boot to recovery mode - switch off the router, hold the reset button in, then switch on the router. Hold resent button until the power light goes into a very slow flash. In your web browser, go to 192.168.1.1.
3) upload the dd-wrt .trx file
4) wait for it to reboot on its own and respond to ping on 192.168.1.1