I recently purchased a "new" "open box" "non-returnable" Linksys e8450 reportedly with Linksys v1.2.00.273012 firmware. My intention is to install openwrt.
When the router is started with a cable from my gateway router (192.168.0.254) plugged into the "internet" port, it connects to that router and gets an IP address for the WAN connection (192.168.0.x) from the gateway's DHCP server. I set up an alias IP on my desktop in the 192.168.1.x group, and can ping the router at 2126.96.36.199, but don't get a web interface when trying to use a browser. I don't care if I never see the Linksys interface, but I had to go through it on my other e8450 in order to install openwrt. Is there a way to install the openwrt firmware via tftp?
I did try to reset the router (more than once!). It boots up and gives me the expected blue lights, but I can't access the web interface, so I can't do a "proper" install. That's why I asked the question.
Things weren't quite as bad as they seemed. When I went to the web page in an attempt to install OpenWrt, I got error messages, and the page didn't load. When I finally paid attention the the messages, I found that it was trying to make a secure connection to the router, but if I went ahead and bypassed the warnings I got the the router's web page. I now have OpenWrt on that router, and don't get the warning messages when going to the luci web page.