I have 2 groups of people working: Room1 - has 3 PC's A, B and C and all are connected to one network via a ethernet switch, also A shares internet to B and C via a 4g usb dongle Room2 has 3 PC's D, E and F and all are connected to one network via another ethernet switch, also D shares internet to E and F via a 4g usb dongle. As we see we have 2 groups that has their own network. I would like to connect all 6 to the same network, primarily so that all can share files over lan and also internet sharing. The simple way of doing this is to disconnect 1 dongle and allow all users to connect to internet only using one dongle and then join the 2 groups with a ethernet cable so they can access each other. However is there a way in which we keep both the dongles and yet continue sharing internet and yet all 6 PC's are connected to the same network?