Windows Networking Problems!

[BCAESE]

I have a 5 computer network 2 of them are running Win98 OS the other 3 are Win2000. I use a 4 port Lynksis router for PC's 1,2,3 and PC's 4,5 are uplinked from the router to a Hub.
PC 1 = 2000
PC 2 = 98
PC 3 = 98
PC 4 = 2000
PC 5 = 2000

PC 1
When viewing other PC's in the Netwok Places it can view all the PC's.
when entering PC 4 and PC 5 it also does that well. The problem starts whe I try to share files. It always fails. After failing I can't enter the PC anymore sometimes I lose my internet connection. I have restart my PC to be enable me to enter PC 4 and PC 5. I cannot enter any of the win98 computers.

PC 4 responds the same, but never loses internet connection

PC 5 responds the same, but never loses internet connection

PC 2 and PC 3 cannot access or view other PC's on the network but I'm not too concerned with them because they will soon be upgraded to win2000, then they will be in the same predicament as PC 4 and PC 5.

I noticed on PC 1 when I right clicked on Network Neighborhood->Properties double clicked on Local Area Network->Properties and there was a General Tab and a sharing tab

PC 4 and PC 5 when I did the same thing I noticed just a General Tab no Sharing Tab?

Could this be cause of my file sharing problems

NOTE: All Win2000 PC's can see each other in Winexplorer and all Win2000 PC's get a reply when I Ping each one.

Just the file sharing problem.

Does anyone have the answer

[Soopafresh]

http://www.practicallynetworked.com/support/troubleshoot_network.htm

[BCAESE]

I'm sorry that link to that site is a mess I can't find an answer to my problem there

They don't let you know what OS they are using, it's all over the place.

Some instuctions or a site with more clairty would be more help

[gummyAvenger]

It's been a while since I had to mess with a 98 or 2000 computer ... I think if you go to into your network connections, then right-click on the connection you're using, then go to properties, you there should be a checkbox that says something like, "enable file and printer sharing". Make sure that box is checked on all the machines. You'll have to reboot the machines after you check the box.