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Mass spectrometer does not show in the console, but ACQUITY modules do - WKB2631

Article number: 2631


  • MS is missing from the console
  • Rebooted everything, but MS still does not show


  • MassLynx reinstalled
  • ICOP
  • QDa with any MS
  • MS Console


MassLynx was removed and reinstalled, but the ICOPs were not modified.

ICS/ICOPs must be uninstalled if MassLynx is reinstalled.


  1. Log on to the PC as an Administrator.
  2. Change the inlet configuration to none.
  3. Remove the ACQUITY modules from control panel Add/remove programs.
  4. Run StopACQUITYProcesses.cmd.
  5. Go to C:\Program Files (x86)\Waters Instruments and rename DHCP.xml to *_old.
  6. If you are unable to rename the file, go to Control Panel > Administrative Tools > Services. Right-click and stop both WatersFileService and Waters DHCP Service. You may need to right-click Waters DHCP Service, select Properties, and then disable (in Startup type) before you can stop it. Then rename the DHCP.xml file.
  7. Reboot the PC.
  8. Configure the inlet and load Instrument Control Software.
  9. Reboot the MS and ACQUITY modules.

If this does not work for some reason:

  1. Perform steps 1 through 4.
  2. Remove MassLynx.
  3. Delete the C:\Program Files (x86)\Micromass Utilities folder.
  4. Restart the PC.
  5. Reinstall MassLynx.
  6. Configure the inlet.

If there are still issues:

  1. Run StopACQUITYProcesses.cmd.
  2. Run C:\Program Files (x86)\Micromass Utilities\ICOP\sources\Support Files\ICSCompanionSetup.exe.
  3. Reboot the PC.



ICS Companion:
A utility that is run at the end of ICS installation to reconcile .NET and other dynamically linked files (DLL) used to control instrumentation.

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