Then plug in your MiFi. Run ip a – you should see a new interface like usb0 or enp0s20f0u2 .
| Error Symptom | Most Likely Cause | Solution | | :--- | :--- | :--- | | | Windows driver conflict | Uninstall all USB modem software. Use RNDIS_eliminator script. Reinstall only Microsoft's driver. | | Yellow exclamation, Code 28 | Driver not installed | Manually select "Remote NDIS based Internet Sharing Device" as in Method 2. | | No internet despite connected | IP address not received | Run ipconfig /release then ipconfig /renew in CMD. Set DNS to 8.8.8.8. | | Device keeps disconnecting | USB selective suspend | Go to Power Options → Advanced → USB settings → Disable "USB selective suspend." | | RNDIS device only appears for 5 seconds | Device is in charging-only mode | On MiFi’s LCD menu, go to Settings → USB Mode → Change from "Charge only" to "Data + Charge" or "RNDIS." | 4g mifi usb ethernet rndis driver
Once the driver is correctly installed, your 4G MiFi transforms from a simple Wi-Fi broadcaster into a high-performance, low-latency, always-charging USB modem. That is the true power of RNDIS. Then plug in your MiFi
Note: As of macOS Ventura and Sonoma, Apple has tightened security. You may need to boot into Recovery Mode and run spctl --master-disable before installing. Use RNDIS_eliminator script
: While supported on Windows XP through 11, older versions like Windows XP require manual driver installation from the manufacturer's website.
After 10 seconds, your MiFi should appear as a standard Ethernet connection.
| Issue | Solution | |-------|----------| | Device not detected | Try a different USB cable or port (avoid USB hubs). | | Driver error (Code 10/31) | Uninstall the device in Device Manager, unplug, reboot, reconnect. | | No internet after driver install | Check if USB tethering is enabled on the MiFi (web UI: often under ). | | Slow speed over USB | RNDIS is slower than native Ethernet. Ensure USB 2.0/3.0 compatibility. | | macOS driver not loading | Re‑allow system extension in Security & Privacy after reboot. |