Hi there, @Krissie
Thanks for reaching out here about your mobile broadband query!
If your mobile broadband modem is active and on, you will need to go to the device you want to connect it too and search the WiFi list for the Mobile Broadband device name.
Once you find that modem in the list, select it and you may be asked to enter the password or WiFi key. This is often found on the device itself.
If you need further assistance, our Device Guides link can generally talk you through the set up. You will just need to search the modem type and follow the steps from there.