I have a sony vaio laptop vpceg2aen which came with a power adapter VGP-AC19V33.
Since yesterday the adapter is not charging the laptop properly. The led on the adapter is working when connected to the power source, but the laptop is not charging continuously. The battery icon in the system tray is showing that the power is getting connected and disconnected every 1 sec.
I don't know how to explain this. Even though the laptop is showing as charging for the 1st second, but the very next second it is showing as not charging, and this behavior continues.

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