tomars Posted September 8, 2005 Share Posted September 8, 2005 I am using Windows XP Pro on my PC which is connected to a BT Voyager 2000 Router/ADSL modem. 2 other computers are connected by cable and 2 wirelessly (one PC and one Powerbook)Often when I boot up my PC there is no error message and everything is fine. But sometimes I log on to windows and find one of two error messages.First is that "a network cable is unplugged" even though it is not. If I wait for 5 minutes it it disappears and I am connected.The other message I get is that I am not connected to the network and I get "The problem occurred because the network did not assign a network address to the computer." If I click on repair and then wait 2 mins, it repairs fine and I am connected. Both of these errors show an icon in the notification area. Does anybody know what might be wrong?The first error is leading me to believe I have a dodgy network card as its not detecting the cable.The second would lead me to believe the network or router is set up wrong as it has difficulty assigning me an internal network address.What do you think?Thanks Link to comment Share on other sites More sharing options...
chilifrei64 Posted September 8, 2005 Share Posted September 8, 2005 This could be a number of reasons.. Ensure portfast is not enabled on the switchesyou can statically set the port speeds. you can use group policy to force the computer wait for the network connection. Is the Voyager handing out the addresses?If so.. how many devices does it go through to get to the computers..Is this happening on any other computers on the network or just these 2 Link to comment Share on other sites More sharing options...
COERCITAS Posted September 20, 2005 Share Posted September 20, 2005 The only advice I could give you with those informations would be to follow OSI Model checks...I mean start to check hardware / cable and then, climb up every step until you find the problem.For what I can tell, it could be a cable problem, an interface problem, a switch / hub problem, etc...if it isn't, it can be a speed / duplex problem (autonegociation isn't always your best friend ). Link to comment Share on other sites More sharing options...
Pisnaz Posted September 21, 2005 Share Posted September 21, 2005 Just posted a topic that may helphttp://www.msfn.org/board/index.php?showtopic=56396 Link to comment Share on other sites More sharing options...
ukino Posted September 26, 2005 Share Posted September 26, 2005 I think the problem is the line and the jack would be damaged.check the things Link to comment Share on other sites More sharing options...
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