LinuxQuestions.org - routing problems with internet/print sharing

I have one box with Linux/FC3 and also a Mac. I also have one router and a DSL modem on the WAN port. The modem contains my ISP info. I used it with both machines prior to installing the router, having to constantly switch the cable. The router has a built-in print server which I need to access from the mac. Unfortunately MacOS does not support TCP/IP printing, so I installed Netatalk and can now print thru the Linux box to the default printer which is on the print server. This works amazingly well. Getting into the internet is also no problem with either machine and I can ping everything successfully. The routing appears to be correct...

so where's my problem?

After a while, depending on activity rather than time, the connection is lost when both machines are running. I can no longer reach the router, which means no internet, no mac-linux connection and therefore no printing. Needless to say, this is very frustrating, because I have to pull the cables and restart the router. It appears that when this has happened and I attempt to reach the router thru my browser, the port lights on the router will blink simultaneously, as if the two machines were talking to each other but not actually reaching the router. Why would the Mac be active when I am connecting to the router/modem from Linux?

Does anyone have a clue why this might be happening?

my hosts file looks like this:

Code:

127.0.0.1              localhost              localhost.localdomain

192.168.1.1            router

192.168.1.3            linux

192.168.1.4            mac

10.0.0.2                modem

all are on subnet 255.255.255.0
sbin/route prints this:

Code:

Kernel IP routing table

Destination    Gateway        Genmask        Flags Metric Ref    Use Iface

192.168.1.0    *              255.255.255.0  U    0      0        0 eth0

169.254.0.0    *              255.255.0.0    U    0      0        0 eth0

default        router          0.0.0.0        UG    0      0        0 eth0

What could be conflicting?