Typing can be hard...

I just came across this subreddit and the memories of my time working tech support for a large ISP came flooding back. One day I received a call from a man who was having trouble setting up his new branded modem/router 'starter kit'. I could tell his modem on his DSL line has sync and sever auth attempts had been made from his account but rejected due to an incorrect login password.

Company policy told us to run though the 'install disk' that pushed the login info to the modem, we ran through it several times getting him to type his password in, resetting the password, logging in to the modem and entering the details manually, spelling it out letter by letter with the Phonetic alphabet. Nothing would work, after over an hour of this I was about ready to send out a tech to solve it on site when I tried one more time to get him to enter the password.

> Me: Ok now I need you to follow my instructions step by step and report what happens. (We get to the part that he has to enter the password.)

> Me: Press 'A' on the keyboard.

> Client: I pressed 'A' and it is in the little box that it should be in.

> Me: OK, now press 'L' on the keyboard.

> Client: Ok, 'L' is already there.

> Me: Wait, 'L' is already in the box?

> Client: Yup, I don't have to type in the 'L' in these password things, it is already there.

> Me: Sir, is the 'l' blinking?

The whole time he has been skipping typing L in all the passwords as it was already there blinking away in front of him and every random or custom password we attempted in the nearly two hour troubleshooting just happened to have an 'L' in it...

tl;dr, Almost two hours diagnosing the Blinking 'L' issue.

Edit: Just to clarify, the client was over 90, and never user the 'internet thing' before.