I suggest that you upgrade the NIC driver. > -----Original Message----- > From: Craig A. Mills [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, November 27, 2002 10:40 AM > To: Exchange Discussions > Subject: RE: Very strange problems occuring > > > Nobody has suggested updating the NIC driver yet. > > Craig A. Mills > Computer Aided Management, Inc. > 371 Oak Pl., Ste. H > Brea, Ca. 92821 > (714) 257-0108 > > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of David Lloyd > Sent: Wednesday, November 27, 2002 5:46 AM > To: Exchange Discussions > Subject: RE: Very strange problems occuring > > > Thanks guys, > Currently all are wiring is certified cat5. I'm now testing > the force all > ends > to 100mb full duplex to c if that makes a difference. > > Thanks again for your advice > > David > > > ---------- > > From: Vincent Avallone[SMTP:[EMAIL PROTECTED]] > > Reply To: Exchange Discussions > > Sent: 27 November 2002 13:41 > > To: Exchange Discussions > > Subject: RE: Very strange problems occuring > > > > 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. 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