Network problem Mac Powerbook 1.67

I am going to do two things, here.

1.Solve your problem
2.Suggest a program I highly recommend which will prevent your problem's reoccurence, though I have absolutely no financial interest in the latter, but have used it when problems like this occurred and it has proven itself to be the only way I know to properly administer a home network of up to 8 nodes with minimal difficulty.

First, the solution, since your previous addition of a router, which you removed, very likely consumed and still consumes an allocation of memory reserved for it, which your mac PB can no longer address, as it once could.

Start from scratch and rebuild your network, running whatever setup procedures established the relationship between the nodes.

Next: Google Network Magic, download the free version to try out, and if you like it, buy the program which probably currently sells for about $50.00, fully configured. There is also a Mac version which will assist your mixed network needs.