rewired network, now got probs!!!

hardc0re_tid · 6 Jan 2007 at 18:17

old network contaning 3 computers was setup with the use of a router and a switch.

router and modem is downstairs with my computer connected directly to the router

switch was upstairs which was connected to the router which was splitting the connection to the 2 upstairs computers.

i have to done away with the switch upstairs and have ran 2 new cables directly from the router to the 2 upstairs computers.

my computer is fine and connects to the internet no problem, but now the other 2 computers wont "connect" to the internet. when i plug the network cables into the computers windows says that "Local Area Connection is now connected" but i cant get acces to the network or the internet?

please help as the other 2 people wont get off my back about it

michael baxter · 6 Jan 2007 at 18:29

You could try 'ping'ing the other computers from your own, you may need to drop any software firewalls you may be running on each PC.

Fire up the command prompt:

ping X.X.X.X (replace the X's with the IP address of the PC you are trying to get working)

If you get a response, your cabling is good.

To find the IP address of a PC, use this command:

ipconfig

If you have made your own cables, you may want to check the wiring.

Regards,

Michael

ste_bla · 6 Jan 2007 at 18:29

What IP address do the non internet PC have?

Have you tried running the network setup again?

Have you tried swapping cable to see if that or pc?

hardc0re_tid · 6 Jan 2007 at 18:38

ports on the router are fine as i have checked them all using my computer.

when i ping the comps (Graham and Multivision) there is no response.

IPs are as follows:

Mine (Thermlaltake) Automatically assigned (just noticed that there now, should have been static :confused:

- 192.168.1.2)
Grahams (Graham) 192.168.1.7
Dads (Multivision) 192.168.1.8

i dont use the network setup, just connect the networks cables and manually assign the IPs to each computer

my wiring has been checked and double checked

EDIT - the lights are even lit on the router but are static (not flashing)

even resetting the router doesnt help

hardc0re_tid · 6 Jan 2007 at 19:25

reterminated cables of both non working computers but still no difference.

both comps are sending but not receiving packets

benjo plz. · 6 Jan 2007 at 19:26

Have you set the DNS, WINS and Gateways on the computers to the router's IP?

michael baxter · 6 Jan 2007 at 19:34

hardc0re_tid said:
reterminated cables of both non working computers but still no difference.

both comps are sending but not receiving packets

Are you certain you have correctly wired the end pieces to the correct colour coding? Have you made crossovers by mistake? Can you try another cable that is known to work?

This is gotta be a cabling issue, as nothing has really changed.

Michael

hardc0re_tid · 6 Jan 2007 at 20:13

michael baxter said:
Are you certain you have correctly wired the end pieces to the correct colour coding? Have you made crossovers by mistake? Can you try another cable that is known to work?

This is gotta be a cabling issue, as nothing has really changed.

Michael

im begining to think otherwise, my laptop (when connected to the router) can see 'Thermaltake' and 'Graham' but when i double click on 'Graham', i get the error '\\Graham is not accessible'

if it was a cable fault i doubt i would see Grahams computer on the network

i have just made the 2 computers search for IPs instead of manually assigning them, Zone Alarm poped up saying that it found a new network, i added the new network to the trusted access group but i still cannot view the network or browse the web.

no no i have made straights, 100% definate.

i did not use the 'correct' colour code for RJ45 but i used the Telecoms one, both ends match

benjo plz. · 6 Jan 2007 at 20:24

Try connecting your laptop to Grahams cable to check if it's a cable or software issue?

hardc0re_tid · 6 Jan 2007 at 20:47

Phnom_Penh said:
Try connecting your laptop to Grahams cable to check if it's a cable or software issue?

did that and i had no connection to the network or internet yet windows says that there has been a network connection connected.

something i have just remembered about telecoms is that you cant run telephone cables parallel with power cables or you will get interference, dont know if its the same with data networks but i have run the CAT5 cable along side (about 6 inshes away) from the main Modem/TV coax that NTL put in, (the black stuff out the outside of the house).... yes the CAT 5 is out the outside and a hole drilled through the wall. would that cause interference?

EDIT - just brought my dads computer down beside mine and used the same network cable used in mine and that works 100%, got connected to the internet and network. so its a definate cable fault with the 2 cables i have spent all day running!!!! :mad:

i have now got a very sore head and will report back tomorrow

bitslice · 6 Jan 2007 at 23:41

hardc0re_tid said:
i did not use the 'correct' colour code for RJ45 but i used the Telecoms one, both ends match

umm, that sounds worrying... :eek:

what do you mean exactly ?

Cat 5 has to be wired in the order it says for a reason, the twisted pairs have to match each other.

.

michael baxter · 7 Jan 2007 at 00:01

I think Bitslice has pointed out the root of your problem!

Here's a link to the 'correct' wiring standards:

http://www.ertyu.org/steven_nikkel/ethernetcables.html

hardc0re_tid · 7 Jan 2007 at 10:06

surely it wont matter, signal in one end out the other or is that not the case?

i have no crimp ends left after reterminating them twice lastnight

i have mine wired:

1. white blue
2. blue
3. white orange
4. orange
5. white green
6. green
7. white brown
8. brown

both ends are identicle

i still have the feeling that it may have something to do with the fact that i have the cables paralell with the NTL mains cable:

this is where the cables come out of the wall from the router, you can see that they are close to the NTL cable.

this is where they come along side the other cables before going up the back of the drainpipe

michael baxter · 7 Jan 2007 at 13:55

Your posts express arrogance, ignorance and a lack of gratitude.

I'm done with helping you!

Exasperated,

Michael

ste_bla · 7 Jan 2007 at 15:52

Did you test the wires before putting them in place?

How long are the wires?

What happens if you try running network set up with DCHP on at the router?

benjo plz. · 7 Jan 2007 at 16:53

hardc0re_tid said:
surely it wont matter, signal in one end out the other or is that not the case?

i still have the feeling that it may have something to do with the fact that i have the cables paralell with the NTL mains cable:

No, you'll need to rewire them properly.

It won't mess them up completely, it just adds a bit of resistance, but shouldn't cause a problem like this.

bitslice · 7 Jan 2007 at 17:22

michael baxter said:
I think Bitslice has pointed out the root of your problem!

nope, I can't take any credit here,
you already pointed out the problem in the very first answer to the OP.

If he wants to ignore you and worse, ignore the informative link you kindly posted then that's his misfortune :-/

.

michael baxter · 7 Jan 2007 at 17:23

Phnom_Penh said:
It won't mess them up completely, it just adds a bit of resistance

That's not quite right, the effect of incorrect wiring won't increase resistance, it will increase crosstalk and reduce resilience to electrical noise.

michael baxter · 7 Jan 2007 at 17:24

bitslice said:
nope, I can't take any credit here,
you already pointed out the problem in the very first answer to the OP.

If he wants to ignore you and worse, ignore the informative link you kindly posted then that's his misfortune :-/

.

Thanks Bitslice

benjo plz. · 7 Jan 2007 at 17:24

michael baxter said:
That's not quite right, the effect of incorrect wiring won't increase resistance, it will increase crosstalk and reduce resilience to electrical noise.

No, I meant having it running parallel to electricity.