Also, are you using a cable provider like Charter for your internet?
I ask because I use Charter.
Charter has an anti-dhcp request mac filter in their network.
Too many requests in a certain time frame will cause them to block/black list your device.
This topic has been discussed in the smallnetbuilder forums. The stock and asusmerlin firmwares have a setting for aggressive dhcp on the wan just because this issue.
To see if this is impacting you, you have to power down your router & modem for 10 minutes (clears the block on charter), then power back up & see if you get internet again.
Posted: Thu Nov 14, 2013 1:08 Post subject: Still needing help
I cleared the default gateway settings.
I know that it is not an ISP thing as my old router works fine, and talking with my ISP, they gave no indication of anything on their end to cause me problems (with this).
I got the tomato fw on the router. I finally got the original cfe.bin file copied, I think. Now I'm trying to get it off of my router.
A problem that I'm having is that everything is written providing that you know Linux. If I didn't rely on Winders as much as I need to, I'd be into Linux myself. However, having limited experience with Linux, this is a bigger pain in the backside than it already is.
Just to make sure that I did it correct, to copy the file, I used "dd if=/dev/mtd/0 of=/tmp/cfe.bin". Is this correct?
How do I use the scp command to copy a file from the router to a winders computer???? Or how do I get the file off of the router onto something else, like a USB drive?
When I get this all working, I'll write a post for winders noobs like myself, if I can remember what I did and used.
Just a heads up - I too have an Asus RT-N66U running DD-WRT.
I was having problems accessing the internet also (a problem not relating to yours).
However, I had been changing the WAN connection type around for over an hour (I couldn't get a PPPoE bridge working to my 'modem'), but then when I changed it back to Automatic Configuration - DHCP, it still wouldn't connect, even though it was working like this before and it had assigned me a WAN address. No other settings had changed but it still wouldn't connect.
I did a 30-30-30 reset to clear the NVRAM (remember its the WPS button!) and as soon as it rebooted - WAN worked fine again!
Maybe a bug? And abit of a pain manually restoring all the settings again, but least it's back up and running.
Posted: Sat Dec 21, 2013 23:55 Post subject: What am I missing?
I'm trying to copy the cfe_n66u.tgz file from my Windows computer with an SSD (C:\Asus\) to my router, without any luck. I'm using the Run command on the router to do this. I'm entering: scp firstname.lastname@example.org:/dev/sda1/Asus/cfe_n66u.tgz . (including the final period.)
This appears to work but nothing shows up to say the results. When I try to tar the file (tar -xzf cfe_n66u.tgz), I get a message stating that there is no such file or directory.
If I try the above scp command without the final period, I'm getting a usage error message.