From the Net:
"You will find that your ships will just stop moving and stay in the starting port of the trade route, which basically makes the route inactive. Consequently, you will need to delete the route and remake a new route from scratch."
What Xerowing said is incorrect.
Could be that the anchor you dropped was caught by a Seamonster and it's now having a tug of war competition with your boat?
No the ships are still following the trade route - but they no longer collect goods for sale in my home port - but they do collect settlers
Ive tried redoing the trade routes from scratch but that dosent help
Xero could you please post a link to that post - maybe they also discuss this there.
IT was taken from a Review of the game, so no additional Information was given
I would use these forums to ask for help, seems that is what all TEN the other players are doing