I am trying to set up a second-hand 1990s era Ascend/Lucent "SuperPipe 155" ISDN router for use with some of my 90s era computers, but I don't know the router's password and the instructions I found for resetting it to the system default are not working. Do any of you remember how this was done on this machine?
I tried the instructions in this thread but they did not work. The NINDY (bootloader) code on my unit seems to be a bit different than described in that thread. The thread references an "EF" (erase flash) command, but that option does not show up in mine. The only similar option on mine is "EP" (menu description: erase program area).
Running EP does seem to erase the OS from the unit's flash memory; typing EF does nothing. After erasing the program area, I can install various versions of the OS using the DF command, but the configuration and password remain in place even after downgrading to 7.4.2 and then upgrading back to 9.1-144.1 or 9.1-144.3 as mentioned in the thread.
Do any of you remember working with these and have any other ideas I could try?