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Although I've been experiencing this issue since the beginning of my laptop (with Windows 8.1, currently Windows 10), I've decided to lay it down with Microsoft before the support ends.
Before this laptop (Dell Precision M3800) I used and still possesses a desktop computer with Windows 7 and there are no problems with the same cables and different Android phones.
The problem occurs on my laptop with all the usb ports and with different cables as well different phones.
When I connect my phone for usb tethering (which has already been set up in developer settings), the network keeps disconnecting and connecting within a timestamp between 3 to 7 seconds. Wifi hotspots are working fine.
Mostly when I troubleshoot the ethernet adapter, it varies from "There is a problem with the ethernet adapter, an invalid Ip configuration, a driver issue, default gateway not available, to simply 'Troubleshooting couldn't identify the problem'.
When I open the device manager, the list also keeps rolling up so I need to be really quick to select any.
The thing is, is when I'll wait for a while (could be a few minutes or an hour), whether I am running through all the command prompt processes or not, the network is stable, working flawless and the icon right below is staying as a pc screen instead of the 'no internet connection' globe symbol. When unplugging and replugging directly after, the connection stays stable. However, the problem occurs after a few hours or a day when I replug my phone.
I have also checked the Remote NDIS based Internet Sharing Device driver, tried to update it, also within my pc by unchecking compatible software.
I've done the manual IP settings in the Internet Protocol Version Properties and I’ve gone through the power options for both devices.
I also checked the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class{4D36E972-E325-11CE-BFC1-08002BE10318}. However, there already are three DWORDs named "*IfType", "*MediaType", and "*PhysicalMediaType" set to 6, 0, and E for every Remote NDIS based Internet Sharing Device DriverDesc.
I probably forgot more steps that I've tried, basically everything I came across on the internet.
Nevertheless, there could be just 1 simple fix I've never tried before and which could be the solution that fixes the issue permanently, instead for just only 1 day!
Any help is appreciated!
Note: Above it says that I'm using an Acer Extensa, but in my profile I can see the Dell Precision M3800.
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Hi Acer_Extensa5235
We haven't heard from you, so we assume that your issue has already been addressed. We will not be monitoring this thread moving forward so, if you need further assistance, please create a new thread to discuss these concerns by clicking this link: Create a new question (microsoft.com)
Thank you for understanding.
Regards,
Lonex P.
Microsoft Moderator
Hi Acer_Extensa5235
Thank you for the reply.
You're very welcome! I really appreciate your patience and persistence in troubleshooting this.
About the Missing 'RNDISMP' Registry Entry
Since RNDISMP is missing from HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services, it’s worth checking if the Remote NDIS based Internet Sharing Device driver is properly installed:
Open Device Manager (Win + X > Device Manager).
Locate Network adapters and check if the Remote NDIS adapter appears.
If missing, try:
Manually reinstalling the driver via Add Legacy Hardware.
Using pnputil (pnputil /enum-drivers) to confirm if it’s installed.
Installing the latest USB tethering driver for your Android phone.
USB Tethering vs. MTP Mode
Yes, I was referring to Developer Settings > USB Standard Configuration, where you can set USB behavior permanently.
Since File Transfer (MTP) disrupts tethering, switching back manually in the notification panel may still be necessary each time you connect your phone.
Some phones allow "Always use USB tethering" as a standard mode—if yours doesn’t, manually toggling might be the only way.
IPv6 Disabling—A Good Move
Your logic makes perfect sense! IPv6 showing ‘No Network Access’ could indicate conflicts with USB tethering, especially if IPv4 and DHCP aren’t working properly. Hopefully, disabling IPv6 resolves the random disconnects.
Repair In-Place Upgrade as a Final Step
If nothing else works, an in-place upgrade could refresh Windows without losing your files. It’s great to keep this option in mind if tethering still misbehaves.
Definitely let me know how it goes
Best Regards,
Lonex P.
Microsoft Moderator
Hi Lonex P,
Thank you for your quick reply and providing me with possible solutions!
There are a few options I already tried, like the power management uncheck, the manual set of a static IP address and several usb controllers which either didn't work with the previous operating system. However, I haven't tried a USB hub yet, so it might be worthed to buy one.
According to the other options;
I've been trying to find the provided link into registry editor, but the 'RNDISMP' seems to be missing when navigating to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
Please see below a screenshot of the registry.
Hi Acer_Extensa5235
Thank you for posting in Microsoft Community.
Here are a few additional things that might help:
> Disable "Selective Suspend" for USB Ports
Windows sometimes suspends USB ports to save power, which could be interrupting your tethering.
Open Device Manager (Win + X > Device Manager).
Expand Universal Serial Bus controllers.
Right-click each USB Root Hub > Properties > Power Management.
Uncheck "Allow the computer to turn off this device to save power."
Restart and see if the connection stabilizes.
>Adjust Remote NDIS Settings in Registry
Since you've already checked the registry, let’s try forcing a stable connection:
Open Registry Editor (Win + R, type regedit, press Enter).
Navigate to:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RNDISMP
Look for the DWORD value EnableDhcp and set it to 1 (if it doesn’t exist, create it).
Restart your system.
> Set USB Connection to Always Use MTP Mode
Unlock your Android phone, connect it via USB, and swipe down.
Tap USB options and ensure File Transfer (MTP) is selected instead of "Charging."
Some tethering issues occur when the phone defaults back to charging mode.
> Force a Static IP Instead of DHCP
If your IP keeps resetting, manually set a static IP address:
Open Network and Sharing Center (Win + R, type ncpa.cpl, press Enter).
Right-click your tethered network adapter > Properties.
Select Internet Protocol Version 4 (TCP/IPv4) > Properties.
Use:
IP Address: 192.168.42.100
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.42.129
Preferred DNS Server: 8.8.8.8
Click OK, restart, and test.
> Try Disabling IPv6
Go to Network Adapter Settings (Win + X > Network Connections).
Right-click the tethered network > Properties.
Uncheck IPv6, apply changes, and restart.
> Test with a Different USB Controller
Since your laptop had a motherboard replacement, some USB controller settings may be different now.
Open Device Manager, find your USB controller, and try rolling back the driver.
Alternatively, test with a USB hub or adapter to see if the behavior changes.
Perform Repair in-place upgrade: This will reinstall your Operating System and will keep your files and apps. This will take some time depending on the computer performance and internet speed. You can follow the steps from this link: How to do a Windows 10 Repair Upgrade - Microsoft Community
Let me know if this helps.
Best Regards,
Lonex P.
Microsoft Moderator
