Help with my home network problem please?

[Excelsior]

http://excelsior.zerobrains.com/untitled.bmp

BAsically that's my network. Problem is, I have f@h on all my comps, but comp 4 can only see comp 3, not 2 or 1. 2 or 1 can ping 4 or 3, but 3 or 4 can't ping 2 or 1. They all are connected to the internet connectiona nd have no problems pinging the router. Also, if I hook the router and switch both in uplink ports together, it won't work. Let me know if anyone can help,

-Excelsior

[MisterEd]

What model router do your have? For my BEFSR41 if I am using the Uplink port then I can't use Port 1. Check your manual to be sure. Your version might be different.

If you are using DHCP then the router should supply IP addresses that are in the right range for all of the computers to see each other.

[overdoze]

your connections seem wrong. I would hook up red #4 to blue "UP" if I were you. If that doesn't work I would connect #4 to #4 together.

[gusgizmo]

everything is right, maybe the cable/port you are using to link the hubs is bad. i would try switching it around. maybe this is an addressing thing, though. can we have ip addresses for all computers?

[overdoze]

I would have to disagree. UPlink is for a hub that hook up to the WAN or the source of the internet provider. In this case the blue box is the client and it needs to uplink all network forward to the router. Anyway, it is safe to hot swap the cable to different ports to try out.

EDIT: that explains why 3 and 4 can not see 1 and 2 while 1 and 2 can see everything because they uplink to both wan and the blue box.

Originally posted by gusgizmo
everything is right, maybe the cable/port you are using to link the hubs is bad. i would try switching it around. maybe this is an addressing thing, though. can we have ip addresses for all computers?

[Excelsior]

K here's what's up.. Made a tiny mistake in drawing. PC1 is hooked up to port 4 not 1. Anyways, I hooked PC 1 into port 1, and then linked red 4 to blue uplink, and internet works but It's still teh same deal, 3 and 4 can't ping 1 or 2 but 1 or 2 can ping 3 or 4.

-Excelsior

P.S. 4 to 4 gives me no connection.

[Mark620]

It may be in the network configurations on each computer. Is the workgroup the same on all computers? Also what OS is running on each machine?

[gusgizmo]

dude, uplink on a hub is the port you use so that you can connect two hubs together without a crossover type cable. you put one plug in an uplink, then another in a normal jack. for a router, the port is usually labeled wan, though i dont use those retail routers, i dont like them much.

[Mark620]

Originally posted by gusgizmo
dude, uplink on a hub is the port you use so that you can connect two hubs together without a crossover type cable. you put one plug in an uplink, then another in a normal jack. for a router, the port is usually labeled wan, though i dont use those retail routers, i dont like them much.

YES, and it does not matter wich way it it done aslong as an uplink port from one goes to a standard port on the other.

[ghouse78]

not that this helps the situation but...
if you only have 4 pc's why not hook all 4 up to the router and be done with it
even better, have you tried to hook all 4 up to the router and see if you can get online and see all the other pc's as well

[Como]

they are probably in different rooms.

i had a similar setup with a 100 base for 2 and a 10 base uplinked ot the 100 for my room ,where i had 4 or 5 computers...and they all shared a dialup connection from the basement computer!

Now.

If you have a router, a router will, in therorey, put all outgoing traffic to a single ip for the internet, yes?

if so, just use static IP's on your computers like i do. (i have dualip so my network ip's dont matter)

for instance, the one that gets online/runs a proxy is something like 192.168.0.1, while my sisters would be .0.2, and mine is .0.3/.0.4 (dual boot)

that wasy i can always ping any computer on my network at any time, knowing its ip off the top of my head...

and when filesharing decides to stop working randomly (and with XP/2000 and 98, it does...believe me) i can set up a simple FTP server to ftp over my network. (i hate how complicated it gets, but it does work.)

once i get DSL i'll end up building a computer as a network storage/router/packet balancer/load balancer...

to
A) store stuff
B) make my internet work on all computers
C) optimise DSL's uplaod/downlaod speed thingy
D) balance between my DSL and a friends RR that i will tap for speed :p

(or build 2-3 computers for that mess...i'm not sure yet)

[TimDgsr]

you have to remember that almost all home/cheap routers/switches share the last port with the uplink port, so if one is being used, the other can't be.

[Excelsior]

All right, I've moved downstairs and now I have not all the computers hooked up, so it gets even simpler... Here's how it is now

Router port 1 is hooked up to a laptop upstairs.

Router port Uplink goes to Switch port 5 (The one with the circle that shares to uplink)

Switch port 2 hooks to a pc downstairs.

LAptop upstairs can ping pc downstairs, pc downstairs can not ping laptop upstairs.

-Excelsior

[TimDgsr]

at that point, they're both on the same subnet, because the laptop can ping the downstairs machine. so at this point, you're looking at an OS configuration problem. What's OS's are on each, do you have any firewalls on either machine(including the default xp one)?

I'm assuming both still have internet access, correct?

[Excelsior]

at that point, they're both on the same subnet, because the laptop can ping the downstairs machine. so at this point, you're looking at an OS configuration problem. What's OS's are on each, do you have any firewalls on either machine(including the default xp one)?

I'm assuming both still have internet access, correct?

XP on downstairs, xp upstairs.

No firewalls, xp firewall disabled.

-Excelsior