Gustav Brock
Gustav at cactus.dk
Wed Jun 17 10:56:14 CDT 2009
Hi Jim Seems like similar cases, though we don't need a police escort! My colleague will sort this out next week. /gustav >>> accessd at shaw.ca 17-06-2009 17:40 >>> It is lucky that this type of hardware failure is rare. When you posed the question yesterday and said the problem was affecting multiple computers it seemed like it could be the answer... I am glad you discovered the source. I have had similar situations one being a bank and at 5:00AM with some earlier birds (managers, stock-brokers) drifting in... We started checking ports on a switch to find 8 ports on a bank dead. The worse incident was when I was working alone in a casino, clients were starting to pouring in and a couple of monitoring and application stations were refusing to connect... which meant the casino was effectively down... It was discovered that one bank on a switch was going off and on and there was no extra ports. I connected my tester hub to a live port and populated it with links from the defective bank... it worked until a new switch could be acquired... The new switch was rocketed in, with a police escort, in about 15 minutes but that is another story. ;-) Keep your fingers crossed. Jim -----Original Message----- From: dba-tech-bounces at databaseadvisors.com [mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Gustav Brock Sent: Wednesday, June 17, 2009 5:54 AM To: dba-tech at databaseadvisors.com Subject: Re: [dba-Tech] Vista looses frequently LAN connection and can'treconnect via DHCP Hi all, a follow-up We equipped a laptop with a fixed IP address but it still failed so we had to look elsewhere than at the DHCP function for the source of error. Further research revealed that those workstations never failing were connected to the right bank of 8 ports of 3 banks in total on a central Dell switch (not delivered by us) while all those that did fail - including the bridge for the WiFi and the workgroup printer - were connected to the left and center bank of ports. Only 7 nodes were attached; moving these to the right bank of ports seems to solve the issue. Fingers crossed. A new HP switch will be set up next week. /gustav >>> Gustav at cactus.dk 16-06-2009 15:38 >>> Hi all Anyone having trouble with this? We have a client where Vista client laptops frequently pops off and on the wired LAN. Sometimes the new DHCP request fails and the pc stays disconnected. Later you can reestablish connection. We located this: http://en.kioskea.net/forum/affich-45038-internet-disconnects-when-2nd-user- is-on#p45086 with links to these: http://support.microsoft.com/kb/928233 and as the client often use sleep mode for the laptops: http://support.microsoft.com/kb/933872 http://support.microsoft.com/kb/928152 The router is an older Zywall so the KB article may apply haven't check that yet - but I wonder if anyone have some other ideas? /gustav