Wolfram Computation Meets Knowledge

Why do I get an “Unable to connect to http://server:3737/WolframLightweightGrid/Manager” error?

Mathematica generates this error when the published name of the server machine is not visible across the network.

You can resolve this by fixing the network so machines can be found by name, or setting ContactURL in the Server Settings page to the IP address of the server. The Server Settings page is located at http://localhost:3737/WolframLightweightGrid/ServerSettings.

An example ContactURL setting for a server running on a machine with the IP number 12.112.110.16 is http://12.112.110.16:3737/WolframLightweightGrid. You must restart the server for the changes to take effect.

Is this article helpful?
Yes
No

Any comments?

Thank you for your feedback.

Submit

Contact Support

Whether you have a question about billing, activation or something more technical, we are ready to help you.

1-800-WOLFRAM (+1-217-398-0700 for international callers)

Customer Support

Monday–Friday
8am–5pm US Central Time

  • Product registration or activation
  • Pre-sales information and ordering
  • Help with installation and first launch

Advanced Technical Support (for eligible customers)

Monday–Thursday
8am–7pm US Central Time

Friday
8:30–10am & 11am–5pm US Central Time

  • Priority technical support
  • Product assistance from Wolfram experts
  • Help with Wolfram Language programming
  • Advanced installation support