My connection gets cut every once in a while. Usually takes a bout a minute to get back into the game. My Router does support using an LTE stick as fallback method though. That means I could buy such an LTE stick, connect it to the router and set it up so that the same second that my DSL connection gets cut, the router switches over to use the LTE (mobile) connection.
The question is, would that work for eve without the socket closing, so that I can stay inside the game? The problem is probably that my IP would switch from one instant to the other and then switch back after half an hour.