V1210-T20BJ, S/N: W7P52G10005, Ethernet card installed, PLC battery appears good. I don't know the year of manufacture, but it's probably 4-5 years old.
Yes, I am able to go online with the PLC (see screen cap above that shows MI 4000 has 2222 for its value). The application appears to be intact through power cycle as you can see the Start-Up Display flash briefly before the PLC goes into Stop Mode with the No INFO Password error.
Yes, the screen cap above indicates the value and I just went into INFO Mode (the password for INFO Mode is still '1111') and checked the value of MI 4000 there and it shows 2222.
Interesting note, I can Reset from the VisiLogic Connection menu that does reset the PLC and results in the same error, but when I click the Run button it comes back with "STATUS: Conflict Run/Stop on the PLC screen, but remains in Stop Mode..
It looks to me like the Set Info Password FB did not execute, but it is in rung 2 of the Main Routine. [Edit to add that I added an Increment FB to the end of the rung and the rung definitely executes.]