I have CenturyLink DSL (two lines "bonded") with an Actiontec c1900a modem.  It is currently in transparency mode and connected to my AC1900 Dual Bank ASUS router.  I wanted to improve my Wi-Fi range thoughout the house so I purchased the Deco BE11000, 3 node package from Costco.  I can't get it connected through the modem.  It seems to get hung up at the PPPoE section.  Do I need to force a specific MAC address?  The modem has its own user name/pw, CenturyLink has its own SSID/network name/passcode, then there is the PPPoE which has its own username/pw.  I finally gave up and reconnected the ASUS so that I could have Wi-Fi during the holiday season.  Any ideas, or is this Deco BE65 not compatible with this modem.  I could upgrade the modem with CenturyLink's newer Zyxel C4000BZ modem.

Thank you