Problem: i have 2 controllers, one updated fine, updated craft, no problem. tried to update 2nd  controller ran into problems from.... after all the problems i reverted and  finally was able to put usb drive in with version 1.3.0.00 got communications back. Tablet showed all updated except current controller. everytime i tried to update from DJI Go i get the error that internet connection is bad, no way, everything works fine, have plenty of drive space also.
Tried updating through USB, when doing so, I have communications with the craft (able to move camera and when hitting the record button i hear the a tone on the other controller) however i do not get communication with the tablet. Again, tablet works fine with Version 1.3.0.00.

any help on this would be greatly appreciated

What device are you using? Can you try another device? And the 1st controller works fine with the tablet but the 2nd does not?
Both controllers have to be on 1.6 if the aircraft is on 1.8