Get a travel router. Connect both asiair's to the travel router via Ethernet cable.
Now use your phone/ device to connect to the WiFi of the travel router.
(Do this step once) Go to the admin page is the travel router and see what ip addresses have been allocated to each asiair. Configure your travel router so it always assigns the same IP addresses to the ASIAIRs.
Now launch the ASIAIR App. You may have to choose to connect via IP to connect to the each ASIAIR.