I ended up re-flashing the WRT and was able to get back into WRT firmware. Once again I changed the PPoE and it locked up, restarted router and I cannot get to router menu. Attached you can see my linksys PPoE settings and where I tried to change it in WRT. It seems WRT crashes every time I select Save and Apply
I have now flashed my router 3 times with "openwrt-20180503.trx" and all three times it freezes when I select "Save and Apply" Any ideas of what I can do to remedy this issue? I need to be able to save my PPoE username and password
As I have been waiting for a reply, I keep finding things I did wrong. I didn't follow these directions below, I just flashed and rebooted. Geesh. Let me try these directions and see what happens.
Instructions for flashing May 3rd build:
Enter CFE prompt and use Serial cable to flash and reboot
flash -noheader 192.168.1.10:/openwrt.trx nflash0.trx
You will see a lot of ECC errors, don't worry, let the router do it's thing until you see log stop moving.
Reboot the router and enter CFE prompt.
Flash using serial cable again and reboot.
When the log stops moving. Run this:
cat /dev/mtd1 > /tmp/nvram && mtd write /tmp/nvram /dev/mtd1
Reboot and you should be all set.