My MacBook charger suddenly stopped working

Question

Could you please tell me what to do? The charger suddenly stopped working? No accident, no fluids dropped on it, no overheating etc.....The only problem I can think off is that I roll it up to store it.
Can anyone help me through the "trouble shooter" of figuring out what is wrong with it suddenly ???? Using for the moment a friends charger and my computer is charging, so its not the computer that has a problem, just the charger. Thanks for your help!
This is the charger info. It says "not connecting" but the charger is plugged in!
Battery Information:
  Model Information:
  Serial Number:          9G0161CT0E1MA
  Manufacturer:          DP
  Device name:          bq20z451
  Pack Lot Code:          0000
  PCB Lot Code:          0000
  Firmware Version:          0201
  Hardware Revision:          0002
  Cell Revision:          0158
  Charge Information:
  Charge remaining (mAh):          5001
  Fully charged:          No
  Charging:          No
  Full charge capacity (mAh):          5196
  Health Information:
  Cycle count:          210
  Condition:          Normal
  Battery Installed:          Yes
  Amperage (mA):          -529
  Voltage (mV):          12373
System Power Settings:
  AC Power:
  System Sleep Timer (Minutes):          10
  Disk Sleep Timer (Minutes):          10
  Display Sleep Timer (Minutes):          10
  Wake On AC Change:          No
  Wake On Clamshell Open:          Yes
  Wake On LAN:          Yes
  Display Sleep Uses Dim:          Yes
  Battery Power:
  System Sleep Timer (Minutes):          10
  Disk Sleep Timer (Minutes):          10
  Display Sleep Timer (Minutes):          2
  Wake On AC Change:          No
  Wake On Clamshell Open:          Yes
  Current Power Source:          Yes
  Display Sleep Uses Dim:          Yes
  Reduce Brightness:          Yes
Hardware Configuration:
  UPS Installed:          No
AC Charger Information:
  Connected:          No
  Charging:          No

Answer 1

I've had this problem twice now. This is my second MagSafe power adapter and since my first one became strained and frayed I have taken extra care of this one. All of the sudden it stops working today and nothing seems to help.
My other one lasted nearly two years and this one that I've been taken care of has not even lasted six months.
Are they really that poor quality? I feel like something else has to be wrong here.