If you have never flown your UX11 in 3G and that you are encountering trouble in binding the Tablet and the UX11, APN configuration on the Tablet must be verified:
On Android tablet, go to Settings -> More -> Cellular Networks
enable data roaming on the Delair SIM
click on APN (Access Point Name) to access the list of configured APN's
click on APN with FIELDS ALREADY FILLED, usually called "Movistar.es" or "Telefonica.es" to edit it:
- Rename name (first field) by : Delair
- Rename APN (second field) by : delairtech.telefonica.com
- the screen configuration should look like the file attached (screenshot)
- go to the 3 dots (top right corner of the page) and click save.
when back on the APN list page, select APN "Delair".
Disable any wifi connection and Enable the Mobile/Cellular Data
The tablet should show a cellular connection if a cellular network is available in the area. On certain Android devices a cellular connection indicator is displayed (such as 3G, or H, H+) in the Android status bar (top of the tablet screen). The name of the cellular operator is usually accessible through the relevant Android menu.