I now have two HP laptops (both 4+ years old) that more or less do not recognize that they are plugged in and eventually the battery discharges even though they are plugged in. My college aged daughter's laptop did this first, and was still just under its extended warranty, so HP replaced the motherboard.
But a year later, it did the same thing. So of course, I blame my kid and the way she treats her laptop!

Then I find out this is a common problem and not just with HP. And many times, the laptop jack can be repaired without replacing the motherboard just by repairing the electrical connections.

How many of you have experienced this issue where your laptop failed to recognize that it was plugged into AC power? And what was the remedy?