A useful new option in 2.15 is *CONTROLS,PARAMETERS=CONTACT which allows you to increase the maximum number of iterations before it gives up. I just used that to get a difficult contact problem to solve which looked like it was converging but wouldn't go past 60 iterations on its own.
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Seems the www.bconverged.com has stopped to provide ccx (last release is 2.10)
can one privide a link to the binaries.