@Sunshine There is no FritzBox as the TP-Link is a modem & router 2-in-1 (X50-DSL).

Has anyone figured how to get the internet going with Germany's 1&1 (1und1) ISP using the Deco X50-DSL? The ISP is auto-detected as "1&1_ADSL" (region is Germany) and I've tried PPPoE using the user...