Re: Disconnections with TSAC
- From: "-=D@n=-" <getbent@xxxxxxxx>
- Date: Fri, 4 Nov 2005 10:35:03 -0000
-=D@n=- wrote:
> Vera Noest [MVP] wrote:
>> "-=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.
>
> Thanks for your reply Vera. I rebooted the TS last night, so I guess
> we'll see what happens today with this particular client.
>
> Interestingly, I ran some tests[1] from home last night for two hours
> before rebooting the server. I ran an automated test for two hours
> and didn't get disconnected once. I rebooted the server at 23:30, and
> have been running the automated tests since 23:47 until now (9:30)
> and still had no disconnections. I will keep my 'test' login running
> for most of the day and see how we get on.
>
> I'll keep you posted!
>
> Thanks again
>
> Dan
>
> [1] Signing into the TS, running our application, and carrying out
> most of the tasks that the end user would.
Well, the particular user had one disconnection yesterday. So, problem not
solved, but seems to be a lot better. She also did some testing from her
home location last night, and didn't have any disconnections. It's looking
more and more like an issue with her ISP, but I haven't got a clue where to
start if it is. I've emailed the ISP, and they've assured me they don't do
any bandwidth throttling or traffic shaping for non-standard ports. But,
they'll carry out a line test on the ADSL line. I don't expect any results
from that.
Another option we have, we might move the TS outside of the PIX firewall
temporarily to see if that makes a difference.
Dan
.
- References:
- Re: Disconnections with TSAC
- From: Vera Noest [MVP]
- Re: Disconnections with TSAC
- From: -=D@n=-
- Re: Disconnections with TSAC
- From: -=D@n=-
- Re: Disconnections with TSAC
- From: -=D@n=-
- Re: Disconnections with TSAC
- From: -=D@n=-
- Re: Disconnections with TSAC
- From: Vera Noest [MVP]
- Re: Disconnections with TSAC
- From: -=D@n=-
- Re: Disconnections with TSAC
- From: Vera Noest [MVP]
- Re: Disconnections with TSAC
- From: -=D@n=-
- Re: Disconnections with TSAC
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