I recently bought an XX530v V2 from an online store and the first thing I did was upgrading it to the latest firmware (downloaded from TP-Link product support page). I'm currently using it through the EWAN interface because I can't get the PON interface to connect. My ISP requires na GPON SN and an SLID to connect and I can't set SLID anywhere on the XX530v. Is that really an restriction on the equipment or the setting is hidden somewhere hard to find? I would really like to get rid of my old router (I hate it).