All Solutions

Error: Failed to compute elastoplastic strain variables

Solution Number: 1150 Applies to: Geomechanics Module, Structural Mechanics Module Versions: All versions

Why do I get the error Failed to compute elastoplastic strain variables when using plasticity/concrete/soil plasticity? This happens because the elastoplastic element cannot evaluate a plastic step if the current ...


Error: "Error downloading file" during installation

Solution Number: 1149 Versions: All versions

When installing COMSOL over the Internet, one of the following error(s) occur: Error downloading file. Connect timed out Error downloading file. Connection to download server failed Error Downloading file. Connection ...


How can I see who is currently using a floating network license?

Solution Number: 1142 Versions: All versions

I am working with a floating network license, FNL, of COMSOL. How can I determine who is currently using COMSOL or a specific module? This solution also applies for Class Kit Licenses (CKL). The COMSOL installation ...


Warning: MUMPS Allocation Factor Increased

Solution Number: 1134 Versions: All versions

I get the warning MUMPS allocation factor increased to 1.44 If you get a solution, this warning is nothing to worry about. You can get rid of the warning and possibly get a little shorter solution time by setting the ...


Improving convergence in nonlinear time dependent models

Solution Number: 1127 Versions: All versions

When I look at the Solver Log of a time dependent model, I see that the NLFail column has non-zero entries: Step TimeStepsize Res JacSolOrderTfailNLfailLinErrLinRes 0 0-out 23208e-14 3.5e-15 ...


Error: Error Contacting the Update Server

Solution Number: 1126 Versions: All versions

When updating the COMSOL model library, I get the following message: Error contacting the update server Please check your internet connection. If you think your internet connection is fine, you are maybe connected ...


Error: Failed to Connect to SOLIDWORKS

Solution Number: 1122 Applies to: LiveLink for SOLIDWORKS Versions: All versions

When I try to synchronize the geometry between COMSOL and SOLIDWORKS, the error message Failed to connect to SOLIDWORKS. Please make sure SOLIDWORKS is running. is displayed, and the COMSOL Multiphysics tab in ...


Error: Failed to Connect to AutoCAD

Solution Number: 1123 Versions: All versions

When I synchronize the geometry between AutoCAD LT and COMSOL Multiphysics I get the error message: Failed to connect to AutoCAD. Please make sure AutoCAD is running. AutoCAD LT does not support third party add-ins. ...


Selecting Hardware for Clusters

Solution Number: 1116 Versions: All versions

This knowledge base outlines some hardware recommendations if you plan to set up your own compute cluster for running distributed COMSOL jobs. Depending upon the type of problems that you want to solve you will want to ...


COMSOL Does Not Start with the Latest MATLAB Version

Solution Number: 1113 Versions: All versions

I have installed a new MATLAB version, but running COMSOL with MATLAB keeps opening the older version of MATLAB. You need to manually update the MATLAB root directory path. In the COMSOL Desktop, on Windows® go to the ...