Your switches can do FULL Duplex, right? We had a similar problem a while back and we had to have the NIC's set to auto detect. If we forced it to use Full duplex it slowed everything down.
-----Original Message----- From: Andy Grafton [mailto:[EMAIL PROTECTED]] Sent: Wednesday, November 27, 2002 8:31 AM To: Exchange Discussions Subject: RE: Very strange problems occuring Set the speed of the adaptors and switches as described. If they don't work at 100MBit try setting them to 10Mbit and see if that works for reference sake. If 100MBit doesn't work but 10MBit does, check the cabling and associated wiring stuff (patch leads, sockets etc.) the *whole* way from the switch to the PC. Easy way to circumvent this for testing is by using a long Cat 5 patch lead. If your wiring is certified and installed for Category 5 or above then you're OK for 100MBit. If its Cat 3 or Cat 4 you might be getting trouble from there. I've seen some odd behaviour from cable problems with certain net cards (connections start off OK and then degrade until they're unuseable). All the best, Andy -----Original Message----- From: mike dilworth [mailto:[EMAIL PROTECTED]] Sent: 27. november 2002 13:11 To: Exchange Discussions Subject: Re: Very strange problems occuring set NICS and switch ports all to 100Mbps full duplex, mike ----- Original Message ----- From: "David Lloyd" <[EMAIL PROTECTED]> To: "Exchange Discussions" <[EMAIL PROTECTED]> Sent: Wednesday, November 27, 2002 2:04 PM Subject: Very strange problems occuring > Hi people, > We have a very strange problem here with our users. They are working with > exchange client and Exchange server 5.5 in an NT 4 domain. One by one > they seem to be losing their connections to exchange server. When i go > and have a look, i realise they are experiencing packet loss from the ping > tests i've done. > I realise this my be the wrong group to post to, but recently we have > changed > all our switches from 3comm to Extreme. Users have now got 100mb to the > desktop..........this is when we started experiencing these issues. Strange > thing > is though, if i swap the network card with an identical one, the problem > goes > away, mostly..........or if i put them back on to an old 3comm switch > running at > 10mbit. > > Its a long shot...............but has anyone come accross this type of > problem before? > > I'm just about to go and buy some new NICs > > > David > > Sorry if u believe this is the wrong group to send to, but i think there > are some good people > in this list. > > > CONFIDENTIAL NOTICE > This communication contains information which is confidential and may also > be privileged. It is for the exclusive use of the intended recipient(s). If > you are not the intended recipient please note that any distribution, > copying or use of this communication or the information in it is strictly > prohibited. If you received this communication in error, please notify us by > e-mail or by telephone (020 7770 7000) and then delete the e-mail and any > copies of it. > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Archives: http://www.swynk.com/sitesearch/search.asp > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
