Hello, I'm a 2nd year student, and I'm trying to get to know COMSOL. I'm starting off by solving simple problems with the incompressible Navier-Stokes model, but I keep having trouble with the convegence of the solution. I keep getting the following error: "Failed to find a solution: The relative error is greater than the relative tolerance. Returned solution has not converged." I've tried to solve many problems, but it gives me the same error over and over again. I've changed the number of iterations, the tolerance and the DOF by remeshing, but nothing seems to help. If someone here has a usefull advice, I would really appreciate it. Thanks, Yael.