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Thread ID: 114581 2010-12-09 01:25:00 loss of internet on one but not the other NZHawk (4093) Press F1
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1160056 2010-12-09 01:25:00 There are two computers hard wired to a wireless router.
The adsl modem is wired to the wireless router.
One of the computers has internet connection – the other not.
It say’s the cable is disconnected
Changing the ports & cables made no difference.
Connecting the adsl modem directly to the computer works.
LAN setting on both computers are identical.

Purchased a new combined adsl/wireless router.
Connected it to the previously unconnected computer
Resulted in the same – no internet connection - say’s the cable is disconnected

Can anyone suggest how to approach resolving this?
The computer is at another location so I won’t be able to implement & report back quickly.

Thank you
NZHawk (4093)
1160057 2010-12-09 01:55:00 It's possible you need a crossover cable, I'd be surprised if that worked though.

You go from ethernet port of a modem to an ethernet port of the wireless router which I assume has 4 or more ports and then from those other free ports you connect two computers once of which doesn't work. Is this correct ? sorry but I'm scratching my head and just wanted to be sure I had it right.

If swapping connection from the working pc to the other doesn't fix it then something weird is going on. Most modern routers / switches auto negotiate and don't need crossover cables but it's possible the ethernet card or router doesn't support this. Bit of a shot in the dark.
dugimodo (138)
1160058 2010-12-09 02:23:00 Connecting the adsl modem directly to the computer works.
LAN setting on both computers are identical.


Does this work on both computers? If one computer says cable disconnected with either the modem, or combined adsl/wireless router, or cross over cable to the other computer, i'd say something is wrong with the cable or the NIC.
utopian201 (6245)
1160059 2010-12-09 02:35:00 I tried a different cable - but still was not recognized.
Plus the same cable worked when I connected the computer direct to the adsl modem
NZHawk (4093)
1160060 2010-12-09 02:41:00 It's possible you need a crossover cable, I'd be surprised if that worked though.
This is a good idea but - the connections all worked a week ago - something had to change.

You go from ethernet port of a modem to an ethernet port of the wireless router which I assume has 4 or more ports and then from those other free ports you connect two computers once of which doesn't work. Is this correct ? sorry but I'm scratching my head and just wanted to be sure I had it right.
This is correct - just to repeat cable from the adsl modem to the internet port on the wireless router - then 4-ports available to cable computers - I tried all of the ports - and the computer in question still showed no connection - but the one that did connect - connected through all the ports????


If swapping connection from the working pc to the other doesn't fix it then something weird is going on. Most modern routers / switches auto negotiate and don't need crossover cables but it's possible the ethernet card or router doesn't support this. Bit of a shot in the dark.
What baffles me is why does a direct connection to the adsl work?
NZHawk (4093)
1160061 2010-12-09 02:45:00 What Firewalls are on the one that doesn't work ? Try turning them off, or uninstalling if a third party FW.

And what OS ?

While this may or may not be the case, I had the exact same problem, and tracked it down to a faulty Router. My PC, and all the workshop PC's worked fine, my sons was intermittent. Over a period of two days slowly they all dropped off. Put in a New router and alls well.
wainuitech (129)
1160062 2010-12-09 02:58:00 What Firewalls are on the one that doesn't work ? Try turning them off, or uninstalling if a third party FW.
N360 - but why did it work before and why does the direct connect work? I will still try this.
And what OS ?
Windows XP Home

While this may or may not be the case, I had the exact same problem, and tracked it down to a faulty Router. My PC, and all the workshop PC's worked fine, my sons was intermittent. Over a period of two days slowly they all dropped off. Put in a New router and alls well.
I tried a brand new combined wirless adsl router - and got the same results.
NZHawk (4093)
1160063 2010-12-09 03:31:00 I tried a different cable - but still was not recognized.
Plus the same cable worked when I connected the computer direct to the adsl modem

Use computer A and B, since it can be confusing which computer you are referring to; A can be the working one, B can be the faulty one.

Please state if you have tried the following since it is not clear from your posts:
1. do -both- computers work when connected directly to the adsl modem? (obviously you can only test one at a time)
2. do the lights on the nic come on when the computers are connected to each other via cross over cable?
3. When A is connected directly to the modem, what kind of cable is it using?
utopian201 (6245)
1160064 2010-12-09 03:50:00 A can be the working one, B can be the faulty one
Please state if you have tried the following since it is not clear from your posts:
1. do -both- computers work when connected directly to the adsl modem? (obviously you can only test one at a time)
yes

2. do the lights on the nic come on when the computers are connected to each other via cross over cable?
Computer A yes; Computer B no

3. When A is connected directly to the modem, what kind of cable is it using?
Cat5
NZHawk (4093)
1160065 2010-12-09 04:16:00 [/I][/FONT][/B]3. When A is connected directly to the modem, what kind of cable is it using?
Cat5

I meant is it a straight through cable, or cross over? Also when the adsl modem is connected directly to A or B, is the same cable used in both cases?

That is strange, that when computer A is connected to computer B, the lights are on for A, but not for B...
utopian201 (6245)
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