To get an extra port to the cable modem, I tried hooking up an unused DSL Modem/Router, but this caused one PC to lose internet connection.
The ORIGINAL LAN diagram (Figure 1) shows our working home configuration. The Trendnet router had 4 ports, all being used. We had a PS3 unit which we would swap in and out with another PC.
Then I found an unused DSL Router Modem - a Westell VersaLink Model 327W
(actually, Model: D90-327W15-06 Rev.D)
I removed the telephone cord, and plugged it in (possibly using wrong ports and/or cables) as shown in Figure 2. All seemed to work for a few hours awhile with some intermittent problems.
Then the Windows 7 PC (on SWITCH1) reported that there was no internet connection. WV1 (Windows Vista), XP1, XP2 were all connected OK).
I removed the power from the Westell unit, and the Windows 7 PC regained connection almost immediately.
I was surprised that only the Windows 7 PC lost connection. Can the Westell DSL Router Modem be used essentially as a switch to give us the extra port that we need? Any idea why just one PC was affected by the configuration in Figure 2?
I can get a switch, but would think that I should be able to hook up the DSL unit to give us the extra port. All the cables in my home are of the same type.
Here is a manual I found online for the Westell unit.
From the manual, it appears that the IP address is (192.168.1.1)
Figure 1: ORIGINAL LAN
Router-Gateway (192.168.0.1) Trendnet TWG-BRF114
^ ^ ^ ^
| | | |
-SWITCH1- WV1 XP1 XP2
^ ^ ^
| | |
XB W7 XP3
All the cables I have are the same.
Figure 2: ATTEMPTED TO ADD PS3 WITH ROUTER
^ ^ ^ ^
| | | |
-SWITCH1- WV1 XP1 DSL_Router_Modem (DSL not used)
^ ^ ^ ^ ^
| | | | |
XB W7 XP3 XP2 PS3
Thanks for your assistance.