The qos the router supplies for itself has been known to slow down your general connection to its lan ports just a tad. But thats generally how qos in these products work.


Your cable modem is (generally) a bridge. That means that your RT31P2 is up against the internet and provided a public IP address from your provider.

Most DSL modems are shipped to also route your network. Thus putting an RT31P2 behind it will yield a natted address (usually 192.168.0.0/24) to its wan port.

Those having issues with dsl should make shure that their dsl modem is in bridge mode and that the RT31P2 is handling the pppoe login...

Since your directly behind a cable modem you should be good to go.