RE: XPS 18 Tablet not charging while plugged in??
My variation on the problem was that the computer would charge when connected directly, but when it was sitting in the docking stand, the battery charging icon would indicate "plugged in, not charging." During the first service visit, the technician replaced the screen. That did not solve the problem. Then DELL sent me a replacement docking stand. That did not solve the problem. During the second service visit, the technician replaced the motherboard. That seems to have solved the problem. This was all done under warranty. DELL service was good if a little misdirected. I am wondering what happens next time I encounter this problem (with the new motherboard) and am considering investing in an extension to the warranty.