Windows 10: Data trough 4G mobile broadband connection blocked when ethernet connected

It seems like my 4G mobile broadband connection gets completely blocked by Windows somehow when I am simultaneously connected to a regular wired ethernet connection. The 4G connection is online and working fine, and the moment I connect an active ethernet cable to the ethernet port all Internet traffic dies. Windows will still detect an Internet connection on the mobile adapter (it says connected with Internet access) but it won't let any data trough. This is is a major problem as I often need to be connected to wired ethernet networks w/o Internet connection for work purposes, while using my 4G connection for Internet access. This also breaks sharing of the 4G connection to the ethernet adapter which I also use a lot. I've tried changing the routing priority for the adapters (low metric for the 4G connection, higher for the ehternet connection etc), I've tried with different 4G and ethernet adapters and on different computers (DELL & HP) all running Windows 10 ver >1709 and it's the same result. So this seems to be a general issue with Windows 10, possibly since the fall creators update. It works fine on Windows 8 and on Ubuntu.

Any help would be greatly appreciated. Thanks in advance.

:)

 

4g lte mobile broadband usb-dongle recognized as a ethernet cable


4g lte mobile broadband usb-dongle recognized as a ethernet cable. can anyone provide support.

ill gladly answer follow-up q's

 

How to connect Mobile Broadband device to act as internet access for Ethernet hub?

Hi Everyone,

I am trying to give remote access to a vendor to his device by connecting a Mobile broadband device with 4G internet access to an Ethernet hub. I have connected via a micro usb to Ethernet adaptor and the device can be seen.

However I cannot get internet access as it does not recognise the IP address as it says it is invalid

Please help

 

Cellular connection has transformed into an Ethernet connection

Hi Jennifer,

I tried all of the steps listed and none of them worked, including a network reset. The connection has returned again as an Ethernet connection:





This is very frustrating, especially when my mobile broadband connection ran out of data this evening after I again forgot that my laptop had not connected to my home broadband because of this problem.