USB Connection Problems

Knowledge Base: Troubleshooting
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If RMCTools or RMCLink is having trouble connection to an RMC via USB, here are some possible solutions:

  1. Use Correct RMCTools Version
    Some newer RMCs require a minimum RMCTools version. For details, see RMCTools versions and USB drivers.

  2. Repair the RMC200 USB Driver
    See Repairing the RMC200 USB driver.

  3. Windows 10/11 HVCI (RMC75E and RMC150E)
    RMCTools versions prior to 4.21.0 did not support HVCI on Windows 10 and 11. The preferred solution is to upgrade to a newer RMCTools version. If this is not possible, HVCI can be disabled as described in Enabling the RMC75 / RMC150 USB driver in Windows 10 and 11 with HVCI.

  4. PCs with ARM Processors
    See RMCTools on an ARM Processor.