RealVNC slowness (WinVNC)
James ''Wez'' Weatherall
Thu Jun 12 13:07:00 2003
> W> When it's not frozen, what
> W> is the VNC session like?
> most of the time:very slow, disconnects every 2-25 min
> (ping is about 300, most of the time)
> sometimes i get a realy fast connection, without trouble,
> but i cannot find any reason why this happens.
This is probably the crux of your problem. A 300ms ping time suggests that
the machine you are connecting to is very far away - it also means that
there is a minimum latency of around 150ms for every packet, which is enough
for you to notice.
Also, just pinging Google from my machine at home, with 130ms ping, I lose
50% of the ping packets!
So it sounds as though the network between the two boxes needs some
> to get the info complete;
> my 'XP box' is a iP4 2ghz with ISDN and 100Mbit lan
> my '98 box' is a iC 1,3ghz with 100Mbit lan
> ISDN line: 64kbit (8kbyte)
> all other systems i manage are running XP,
> and are on CABLE or ADSL
The next thing to check is what the Connection Info in the VNCviewer says
when your connection is misbehaving - does it say ZRLE, 8bpp or Hextile (or
Raw), 16bpp or more?
Dr. James "Wez" Weatherall
RealVNC Ltd. - http://www.realvnc.com - The Home of VNC