What is nature of problem?

What kind of controls are you using for implicit solver?

I hope you are using non-linear implicit solver

Kartikeya Shukla i am trying to simulate the compression of a deformable specimen.

I have used CONTROL Implicit General, Solution, Solver, Auto, Accuracy cards.

And, yes, I have opted for a non-linear solver in CONTROL_IMPLICIT_SOLUTION.

Check for contacts if any try to keep the basic solution to simplest among all. Then, slowly increase the complexity to arrive at your final results (probably, most of us fail to do so)

Arun Patil I have tried the same. No luck.