Suddenly my characters stop following, bob around the screen, are way behind the last few days. Looking closer I am getting these errors:
1)AutoPause halting movement
2)Stick ending from target warping out of BreakDist Range

All they are doing is following. Using Underfoot client and starting to notice its not as smooth as it once was so I not sure if its my end or not, thanks.

server lag can cause this. You are on character A, in reality you are about 100 feet from character B, BUT character B is seeing character A as about 10 feet away and is following waay back because the server hasn't updated client B with the most recent data for A.

Then all of a sudden it gets a good update and A is half a mile away and it breaks. There isn't much that can be done about it (assuming thats the problem).

You might try it out on another server with just 2 toons logged in, out of peak time.