Inspiron 7537 power issues

Hello I have owned my Inspiron 7537 for a while now and I have just recently began having problems with my AC adapter, and then it proceeds to throttle my performance. When I use my adapter on my own laptop I get the error message "plugged in, not charging" and performance isn't choked off. However when I use this adapter on another dell laptop i do not get this error message. This just started today by the way.

I have tried multiple times to fix this, from updating my bios, to taking out the battery and putting it back in, etc. I'm starting to worry that this might be a problem with my motherboard and the power regulation on that.

I would appreciate a rapid response as this is both my school and work machine, and I can't complete my work without it