[WT-support] Network problem, explosion of duplicates

[Bob Wilson, N6TV]

Sorry to hear this report.  This does sound like a serious bug caused by a
bad network connection.  But I don't recall hearing other reports of the
same thing happening anywhere else.

Which version of Win-Test?
All computers running exactly the same version?
All wired Ethernet or were some computers using Wireless (WiFi) or cell
phone modem cards (Huawei)?
Any remote (distant shack) connections via wtTunnel or equivalent?

The text commands SYNC/NOSYNC will enable/disable network synchronization
on any specific computer.

73,
Bob, N6TV

On Fri, Nov 2, 2012 at 7:41 AM, Tõnno Vähk <tonno.vahk at gmail.com> wrote:

> Something strange and very troubling happened at ES9C MS this weekend. I
> was not there so I have tried to put the picture together. Maybe someone
> can figure it out...****
>
> ** **
>
> 5 computers/stations were in the network. At some point error messages
> „Lost UDP packets“ and I guess number 10035 (or 10034?) appeared. Also
> error message „double QSO identified, network will be disabled“. After one
> of those messages at one computer when RELOAD was done to restore network
> the last QSO by that station was multiplied by thousands of times and
> synchronized to other computers!****
>
> ** **
>
> So I believe one QSO appeared over 90 000 (!) times (number of dupes
> exploding thus in summary window) and the whole network and all computers
> got very slow till Win-Test became totally not responsive.****
>
> ** **
>
> In general 100,000 QSOs could be OK in log (I saw 200,000 was ok on Ducie)
> so in addition to just QSO number something else severely loaded the
> network and computers, some continuous syncronization of something or I
> don’t know. It took a while now for QSOs to reach other computers (before
> network totally froze).****
>
> ** **
>
> The only way to get back to normal was to export Cabrillo log, clean it,
> delete the old log and import the cabrillo back!****
>
> ** **
>
> When doing Cabrillo it did not export all the QSOs  - is there a limit on
> 100 000 or so?? Last hour was gone.****
>
> ** **
>
> Also, a new row appeared into Summary window before Band row with big
> numbers. This column has not been shown anywhere in manual.****
>
> ** **
>
> We have had this „double QSO identified, network will be disabled“ often
> before. I would say on average 5 times in every 48 hour multi op operation
> on some computer. But always RELOAD has restored the network and all fine.
> ****
>
> ** **
>
> Can anyone have any idea how this excessive multiplication of one QSO and
> total paralyzing of the network can happen? What can be the reason?? It
> happened two times during this contest and ruined any chances to compete
> for top in EU. The thing is a mess but I tried to write everything I
> heard...****
>
> ** **
>
> tonno
>
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