How to configure it you can look at Wireless access point with bridged wired ethernet port and wireless client connection. The wifi hotspot and the ethernet port can be bridged so your laptop on wifi and the desktop on wired ethernet are on a common subnet. But as you say that is no problem because you can use routing with different subnets. The client connection cannot be bridged because lack of WDS (wireless distribution system) that is needed for bridging on wireless. But the wifi device on the RasPi has a general limitation. The Raspberry Pi is able to work as a wireless hotspot and simultanous connect to another hotspot as client. You do not need a second wireless adapter. If anyone has managed something like this or can point me to a more recent post please that would be highly appreciated I don't mind if the Rpi 3 is on a different IP Range (eg:192.168.2.x) from the WiFi Modem (eg:192.168.1.x) My aim is to have the internal wifi of the adapter connect to the WiFi modem, the Wireless adapter as a Hotspot and then the ethernet to provide internet to the Switch or Desktop with internet.

The WiFi modem only acts as a hotspot for the Rpi 3 and preferably nothing else all other devices communicate through the Rpi 3ġ6GB Memory card with Raspbian Stretch Lite Installed on it.Desktop with ethernet cable to have internet and possibly communicate with laptops if necessary.

Having my Rpi 3 setup to handle all communication between devices (cellular, laptop and desktop).What I am trying to achieve is the following:

The problem I am encountering is all the tutorials I have come across are mostly outdated or purely just don't work. I have a scenario where I have a cellular Wifi hotspot modem also known as 'MiFi'.

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