Hello all we have an 5 month old Basset hound who is a real joy. However recently when we go out for a walk he has suddenly started laying down and refuses to move further. Sometimes we can get him up by using touch (to touch our hand) but not always. I am avoiding using treats to get him up so he doesn't feel rewarded for laying down and focusing a lot on when he is doing loose lead walking giving lots of praise and rewards for this. We are not walking further than 20 mins and this happens within a few minutes some walks and not at all on others. Sometimes when he gets up again he is full of puppy beans and that bundle of puppy activity. I am pretty sure he is not thirsty as I have seen suggested and Also pretty sure he is not in pain.
Is this just something to get past as he ages or what can I do to get him past this?