The embodiments herein relate to a method performed by an AAA server (113) for enabling a non-SIM device (101b) to access a first network (100a) via a second network (100b). Based on a request for authorization to the first network (100a) from the non-SIM device (101b), the AAA server (113) obtains an identity associated with the non-SIM device (101b). The AAA server (113) transmits a request for a user profile associated with a user of the non-SIM device (101b) to the subscriber database (110). The request comprises the obtained identity for the non-SIM device (101b). The AAA server (113) receives, from the subscriber database (110), the requested user profile for the non-SIM device (101b). Based on the received user profile, the AAA server (113) authorizes the non-SIM device (101b) to access the first network (100a) via the second network (100b).