Thanks for your thoughts Tim - I will investigate some of the things you suggested. However, each system was built at the same time through the same supplier, and each system contains an identical build structure (including patches). All parts, from NIC to routers, cables and UPSs are identical, and they're all running through the same ISP aswell.
On top of that, although some systems are in less-than-perfect environments, it's not a balanced split of systems that experience this problem versus systems that do. Some of my PCs that have 'crashed' are in well ventilated rooms with excellent operating conditions, whilst I have a couple of locations that should be prime candidates for any problems to surface, but they've worked continuously with no interruptions at all. I have yet to access the system logs from one of these PCs, but will upload their details once they become available. Ben > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Tim Drake > Sent: Friday, 27 January 2006 7:19 AM > To: [email protected] > Subject: "The connection closed unexpectedly" > > > Hello Ben - hope I'm not teaching Grandmother to suck eggs! > > Are all XP 5.1 versions patched the same? > Missing/incomplete patches can cause frustrating problems. > > BUT .. Your intermittant problem sounds more likely to be > network hardware trouble. Questions that could be asked > ...... Are all remote systems identical hardware? Same NIC, > router, hubs.... blah blah? Anything common about the ones > with intermittant failures, not common on good systems? > Anything strange about the surrounding environment of the dodgy ones? > > If you want to be a network detective... > Anything odd when packet sniffing your VNC connection protocol? > > Tried and tested methodology - long term and a pain. > Replace "dodgy" connection equipment one bit at a time with > equipment from "good" connection. Including network cables! > Put "dodgy" equipment into "good" connection. I'll leave you > to work out the rest. > > Eg.. Swap (and reconfigure if necessary) NICs - run for a > while Swap and reconfigure routers - run for a while and so > on and don't forget to swap cables! "Eliminate the possible > and whatever remains, however improbable....." > > Win-doh! doesn't respond well to misbehaved NICs and routers. > Another thing - may or may not be relevant.... On computers > with rear power switch and front panel pseudo power switch. > Some NICs do not totally reset with soft boot, or even front > panel switch off/on. Some remain "alive" and have caused me > problems in the past. I've had to do a complete cold boot > from the rear panel power switch to see problems disappear. > > Did I mention swapping network cables? > > Hope you're not monitoring sheep stations in the outback or > suchlike, as this sort of exercise can be very time consuming. > > Tim Drake > "Old hackers never ever die, they only printf("Fade Away!");" _______________________________________________ VNC-List mailing list [email protected] To remove yourself from the list visit: http://www.realvnc.com/mailman/listinfo/vnc-list
