Re: Disconnections with TSAC

"-=D@n=-" <getbent@xxxxxxxx> wrote on 02 nov 2005 in
microsoft.public.win2000.termserv.clients:

> Vera Noest [MVP] wrote:
>> "-=D@n=-" <getbent@xxxxxxxx> wrote on 02 nov 2005 in
>> microsoft.public.win2000.termserv.clients:
>>
>>> -=D@n=- wrote:
>>>
>>> But they are still getting disconnected randomly. Ok, I would
>>> now say that this is a network problem. Does anyone know of a
>>> tool that I could run at the client end, that would monitor
>>> the connections to our TS here and make a log of
>>> disconnections and perhaps reasons for them?
>>
>> You could start very simple, with a continuous ping (ping -t)
>
> Hmm, I just tried pinging and after eleven successful pings I
> had a 'Request Timed Out'. Is it not the case that RDP should
> be able to deal with the odd dropped 'packet'? Is this where the
> registry changes[1] come into effect? I mentioned earlier, that
> I hadn't rebooted the TS since making these changes. I've
> scheduled a reboot for 23:00 tonight.
>
> I'm also going to run 200 pings and output the results to a text
> file, right now.
>
> Thanks for your support.
>
>
> Dan
>
> [1] http://terminal.servebeer.com/php/flaky_connections.php

The EnableKeepAlive setting puts a "heartbeat" on the connection.
That serves 2 purposes:
a) it can help to keep the connection alive by making sure that
routers always "see" some traffic (avoiding an idle session time-
out on the routers)
b) if the connection is broken, the TS will notice this much
earlier, and will be able to respond to the situation according to
your settings (disconnect or reset the connection).

RDP is *not* very good at dealing with dropped packets (but it
should be able to automatically reconnect if there is a very short
connection problem).

By having your users (or you) run a continuous ping, you get some
statistics about the number of packets dropped. That could help you
to narrow down the problem.
_________________________________________________________
Vera Noest
MCSE, CCEA, Microsoft MVP - Terminal Server
TS troubleshooting: http://ts.veranoest.net
___ please respond in newsgroup, NOT by private email ___
.

Relevant Pages

  • Re:Re: ICMP (Type 8) port
    ... But a ping only checks whether your ... >packets, there is no security risk in this. ... I don't block ICMP echo on my computer. ... >to set up some kind of VPN connection. ...
    (microsoft.public.security)
  • vpnc connects, but does not work
    ... I have installed vpnc to connect to an employer's Cisco VPN ... system, and it seems to make the connection, but after connecting ... I can't ping the tun0 interface nor anything beyond it. ... packets transmitted, 0 packets received, 100% packet loss ...
    (freebsd-questions)
  • Re: possibly bridge related problem
    ... I can't make connection to my desktopfrom my laptop. ... I can't ping and make connection to my laptop from my desktop either. ... packets transmitted, 3 packets received, 0.0% packet loss ...
    (freebsd-net)
  • Re: Ping from PocketPC
    ... ActiveSync isn't a true ethernet connection. ... It doesn't pass all packets, ... and a ping would be one that gets filtered out. ... ActiveSync a reply is not received from any host. ...
    (microsoft.public.pocketpc.developer)
  • Re: possibly bridge related problem
    ... I can't make connection to my desktopfrom my laptop. ... I can't ping and make connection to my laptop from my desktop either. ... packets transmitted, 3 packets received, 0.0% packet loss ...
    (freebsd-net)