Change from switch to router

[gitmoarhed]

Until recently, I have been using a switch to network two computers via ethernet which did not allow the two to be online at the same time.

I just replaced the switch with a D-Link DI-604 4 port router and have four problems.

Shields Up shows port 113 closed instead of stealthed and I cannot figure out how to block it throught the admin panel of the router. (Bit over my head ) How can I accomplish this?

Occasionally, one of the computers seems to lose the internet connection although the second (i.e., in addition to the lan icon) little network icon (lower right) shows the connection to still be active. Is it timing out or what and how do I fix it?

Thirdly, in the status box, when the aforementioned little icon is clicked on, instead of saying disconnect as it did with the switch, it says disable. What is the difference between disconnect and disable? Is this a clue to the next question?

Finally, the disable button does not seem to accomplish anything, because if I click on it the internet connection remains intact. How do I disconnect from the internet if and when I should want to?

Ta


ADSL through Speedstream gateway (PPPOE)

for both computeRs:
XP home
plenty ram
dhcp

[gitmoarhed]

Moderator, please pull. I will post elsewhere.