Laptop (Precision 1350 Workstation) Plugged in not Charging after using it with dell docking station (dell e port plus usb 3.0 replicatior)

Hello so my laptop (Precision 1350 Workstation) with windows 7 which i bought in September 2016 stopped charging after I used it with my docking station . It worked for a week or two prior to this and then I started getting a notification every time I put the laptop on the docking station that said "ac power adapter not recognized , use adapter of 65 watts or above" but the adapter was 130 watts. Even when the laptop was taken off the docking station and the ac adapter was just plugged into the wall it still won't charge at all. I made sure the bios was updated 1.11.4 and even checked for driver to update and ran the online diagnostics there was no problems but it still won't charge. A tech came out last Wednesday and replaced the motherboard and this fixed the problem for about a day but then when I put it back on the docking station the same problem occurred and it still won't charge. I even tried it on a different docking station but the same make and model as mine and the problem persists. Does anyone know what is wrong? The phone tecnicians and the technicians don't seem to know what to do 

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