Successfully completed setting up the floating license client but having trouble contacting the specified License Server (24284). Error: No connection could be made because the target machine actively refused it XXX.XXX.XXX.XXX:XXXXX

Problem:

When attempting to setup the floating license client receive the message “Successfully completed setting up the floating license client but having trouble contacting the specific License Server (24284). Error: No connection could be made because the target machine actively refused it XXX.XXX.XXX.XXX:XXXXX”, where XXX.XXX.XXX.XXX is the IP address of your license server, and XXXXX is the port number, as specified in the License tab of the LP360 License Administrator.

Probable Resolution #1:

The error message is likely caused by the presence of a firewall in place that is stopping the connection between the client machine and the server machine. May also occur when the client on the server machine tries to contact the server machine even though it is on the same machine. The steps below describe how to allow the needed programs and ports through for Windows Firewall only. If there is a separate firewall in place, local IT departments will need to be involved to add the following programs and ports through:

  • LicServer.exe, LicServerProxy.exe and TCP Port assigned to the LP360 License Server during installation of the authorization file (versions 2011.1 or newer);
  • LicServer.exe, LicServerProxy.exe and TCP Port #1234 (versions 2.0 or previous).
  1. From the Start Menu -> Control Panel -> System and Security, select Windows Firewall.
  2. On the side panel select the option Allow a program or feature through Windows Firewall.
  3. Select the Allow another program… button.
  4. Select the browse button and go to:
  • C:\Program Files\Common Files\QCoherent (version 2011.1 and newer).
  • C:\Program Files (x86)\LP360\bin (64-bit machine) or C:\Program Files\Common Files\QCoherent (32 bit machine) (version 2.0 or older).
  1. Select LicServer.exe and click Open.
  2. Choose the Network Location Types… and check the box to indicate which network location to allow the program through.
  3. Select Add.
  4. Select the Allow another program button.
  5. Select the browse button and go to:
  • C:\Program Files (x86)\Common Files\QCoherent (64-bit machine).
  • C:\Program Files\Common Files\QCoherent (32-bit and 64-bit machines)
  1. Select LicServerProxy.exe and click Open.
  2. Choose the Network Location Types and check the box to indicate which network location to allow the program through.
  3. Select Add.
  4. Go back to the main Windows Firewall window.
  5. Select Advanced settings.
  6. Select Inbound Rules.
  7. Right-click and select New Rule.
  8. Under What type of role would you like to create select port and then next.
  9. Select TCP and then type in the port number under Specific local ports and select next:
  • the port specified for the LP360 License Server during installation of the Authorization file (versions 2011.1 or newer), default is “1234”
  • For version 2.0 and earlier, “1234”
  1. Select Allow the connection and then select next.
  2. Select when the rule applies on which networks and/or domains and select next.
  3. Name the rule and click Finish.
  4. Select Outbound Rules.
  5. Right-click and select New Rule.
  6. Under “What type of role would you like to create?” select port and then next.
  7. Select “TCP” and then type in either the default “1234” (versions 2.0), or the port specified for the LP360 License Server (versions 2011.1 or newer) under Specific local ports and select next.
  8. Select “Allow the connection”, and then select next.
  9. Select when the rule applies on which networks and/or domains and select next.
  10. Name the rule and click Finish.
  11. All programs and ports necessary for LP360 have now been allowed through Windows Firewall. Attempt to connect the client through License Administrator.
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