Have you ever tested this fence for voltage?
You check it on the opposite end of the fence where the charger connects......each strand of wire, poly or netting. If it is hot on the far end, it's hot from coast to coast. If not hot at the terminal end.....then a tester will help you ID where the break in the action is.
You can buy inexpensive ($15 or so) flashing light testers, but most of those seem to top out at 5k to 7k volts. My preference is the more expensive digital testers, but those can run as high as $75 or more.
A good tester is critical to getting an E fence setup correctly.
BTW, you could take your shoes off and test it that way......my term for that would be the "idiot light method".
(but you gotta admire their dedication!).