Has there ever been a definitive answer to this mystery?
I bought one of these things from TigerDirect a couple of years back and like so many other buyers could never access the 192.168.1.1 menu. I could get basic setup with the CD, but could never get to do port forwarding or other functions. I needed to do this about six months back and got serious about fixing the problem and found innumerable Google references to it with the WRT120N over several years -- but no solutions. I spent about three days doing all the laborious, time-wasting suggestions in all those threads which no more helped me than they did the persons who originally asked.
I never found an answer, nor did they.
I assumed that the WRT120N was just a defective model, by then well out of 90-day warranty, and chucked it in the junk pile.
Yesterday, I was preparing to throw it out, but on a whim powered it up to give it one last chance. To my amazement, for the first time since I had the unit, 192.168.1.1 brought up the menu and it was fully functional. I updated to the latest firmware, did advanced configuration and repeatedly accessed the menu with no problem. Today I was going to use it with a IP camera and pushed the WPS button on the router to configure the camera's WPS function, and this apparently worked -- but from that moment, the WRT120N's menu can no longer be web-accessed.
I had dimly suspected that some bug in WPS was at the bottom of this problem, but I could never get verification.
It's inconceivable to me that Linksys isn't aware by now of what's really wrong with the WRT120N and its web menu.
What can anyone tell me about this old issue?