This Forum Beta is ONLY for registered owners of D-Link products in the USA for which we have created boards at this time.
How do I log into the modem when the router is connected?
When DSL modems are in bridged mode, accessing the modems web page is no longer accessible in this mode. You'd have to un-bridge it to access the web page and logs.
If the modem is bridged to the 655, then all other devices should be connected to the DIR-655. No disconnections are needed.
It's preferred that if you use a external router and have a bridged modem, let the external router handle any and all PPPoE and DHCP functions and the modem is just the interface between the ISP service and the router which is still required and needed.