I could use some help troubleshooting a mystery. I've been trying to help a remote, non-technical coworker replace her stock Linksys router with an Asus running tomatoUSB. I pre-configured the router, shipped it to her, and she got it working right away.
A few months later, after a power outage, she couldn't get back online. We tried the usual troubleshooting: switched to wired ethernet, rebooted both router & modem multiple times. I couldn't ssh in. The unit seemed dead.
She swapped her old router back in (which worked right away) and shipped me the Asus back. I fired it up and it seemed fine. Fearing an intermittent hardware problem, I sent out a brand new Asus. The "bad" one went to family member who's been using it trouble-free ever since.
The exact same sequence repeated a second time. It worked right away but then eventually couldn't reconnect. It was fine when I got it back.
This wouldn't be difficult except that I can't ask her to go poking around on the command line. So I'd like to ask if there are any pitfalls that could explain what's happening. I've occasionally seen a problem with timing of reboots and DHCP assignment between the router & modem. Would putting a static IP on the WAN side of the router help?
Do ISP's still try to lock you to a single MAC address? This is a cable modem from AT&T. Any other likely explanations?
The build I used was tomato-K26-1.28.9054MIPSR2-beta-vpn3.6, the routers were both RT-N12 and the modem is a Motorola Surfboard SB5101.
Thanks for any help with this.