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SBS2008-vista : connection lost after 10 hours

5 posts in Networking Last posting was on 2010-05-20 09:46:05.0Z
cyclon Posted on 2010-05-13 15:01:56.0Z
Subject: SBS2008-vista : connection lost after 10 hours
From: cyclon <cyclon@base.be.invalid>
Newsgroups: Advantage.Networking
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Hello,

we have an SBS2008 server, and vista professional pc's.

Our ERP program is based on advantage database server from sybase.
This program is completely installed on SBS2008, to start it on a vista
pc, you only have to doubleclick on the start-icon that is on a network
drive. The program then starts on the vista pc. The only requirement
is that there has to a continuous connection between the vista pc and
the sbs2008 server at all time.

Now it occurs that this program crashes, apparently because this
connection is lost briefly somehow. We have determined that this crash
happens 10 hours after the user has logged on to windows on his vista
pc. It doesn't matter when the ERP program is started. If for example
you log your vista pc on to the sbs2008 server at 8:00 AM, the crash
will happen at +/- 18:00. It does not matter if you have started the
ERP program at 8:30 or at 17:55, if it is running at 18:00, it will
crash.

Our ERP program is the only program that has a problem. Outlook has no
problem when it is connected on exchange server. Word, excel, autocad,
all these programs work fine. Internet explorer : no problem.

The connection between the server and the pc must apparently be broken
very shortly, and be restored immediately.

Does anybody have any idea that could explain this? I don't think it
is a problem within advantage, but maybe somebody else has had the same
problem, and knows how to fix this.

Greetings,

Cyclon


"Josh Neider" Posted on 2010-05-13 22:35:44.0Z
From: "Josh Neider" <jneider (at) sybase.com>
Newsgroups: Advantage.Networking
References: <mn.6bfd7da50ae2dbb7.85122@base.be.invalid>
In-Reply-To: <mn.6bfd7da50ae2dbb7.85122@base.be.invalid>
Subject: Re: SBS2008-vista : connection lost after 10 hours
Date: Thu, 13 May 2010 16:35:44 -0600
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Hello Cyclon,

I'm curious if your DHCP server assigns IP's with a lease time of 10 hours?

Josh

"cyclon" <cyclon@base.be.invalid> wrote in message
news:mn.6bfd7da50ae2dbb7.85122@base.be.invalid...
> Hello,
>
> we have an SBS2008 server, and vista professional pc's.
>
> Our ERP program is based on advantage database server from sybase. This
> program is completely installed on SBS2008, to start it on a vista pc, you
> only have to doubleclick on the start-icon that is on a network drive. The
> program then starts on the vista pc. The only requirement is that there
> has to a continuous connection between the vista pc and the sbs2008 server
> at all time.
>
> Now it occurs that this program crashes, apparently because this
> connection is lost briefly somehow. We have determined that this crash
> happens 10 hours after the user has logged on to windows on his vista pc.
> It doesn't matter when the ERP program is started. If for example you log
> your vista pc on to the sbs2008 server at 8:00 AM, the crash will happen
> at +/- 18:00. It does not matter if you have started the ERP program at
> 8:30 or at 17:55, if it is running at 18:00, it will crash.
>
> Our ERP program is the only program that has a problem. Outlook has no
> problem when it is connected on exchange server. Word, excel, autocad, all
> these programs work fine. Internet explorer : no problem.
>
> The connection between the server and the pc must apparently be broken
> very shortly, and be restored immediately.
>
> Does anybody have any idea that could explain this? I don't think it is a
> problem within advantage, but maybe somebody else has had the same
> problem, and knows how to fix this.
>
> Greetings,
>
> Cyclon
>
>


cyclon Posted on 2010-05-14 11:27:15.0Z
Subject: Re: SBS2008-vista : connection lost after 10 hours
From: cyclon <cyclon@base.be.invalid>
References: <mn.6bfd7da50ae2dbb7.85122@base.be.invalid> <4bec7e2a@solutions.advantagedatabase.com>
Newsgroups: Advantage.Networking
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Hello,

I'll have to check this with the company that installed our network.
Somebody else told me this :

10 hours is the default time that a kerberos ticket is issued for in a
windows Active Directory network. That glitch is not the network
dropping, but is the server replying with an explicit access denied to
the client because the ticket is expired. The client automatically
requests a renewal of the ticket, which is granted, so for most network
activities, you never "see" that renegotiation. A network application
should be able to anticipate and accommodate this as this is standard
practice in any network.

I'll have to check this too. I'll keep you informed.

Greetings,

cyclon



Josh Neider schreef op 14/05/2010 het volgende :

> Hello Cyclon,
>
> I'm curious if your DHCP server assigns IP's with a lease time of 10 hours?
>
>>
>> we have an SBS2008 server, and vista professional pc's.
>>
>> Our ERP program is based on advantage database server from sybase. This
>> program is completely installed on SBS2008, to start it on a vista pc, you
>> only have to doubleclick on the start-icon that is on a network drive. The
>> program then starts on the vista pc. The only requirement is that there
>> has to a continuous connection between the vista pc and the sbs2008 server
>> at all time.
>>
>> Now it occurs that this program crashes, apparently because this connection
>> is lost briefly somehow. We have determined that this crash happens 10
>> hours after the user has logged on to windows on his vista pc. It doesn't
>> matter when the ERP program is started. If for example you log your vista
>> pc on to the sbs2008 server at 8:00 AM, the crash will happen at +/- 18:00.
>> It does not matter if you have started the ERP program at 8:30 or at
>> 17:55, if it is running at 18:00, it will crash.
>>
>> Our ERP program is the only program that has a problem. Outlook has no
>> problem when it is connected on exchange server. Word, excel, autocad, all
>> these programs work fine. Internet explorer : no problem.
>>
>> The connection between the server and the pc must apparently be broken very
>> shortly, and be restored immediately.
>>
>> Does anybody have any idea that could explain this? I don't think it is a
>> problem within advantage, but maybe somebody else has had the same problem,
>> and knows how to fix this.


Edgar Sherman Posted on 2010-05-14 14:49:08.0Z
Date: Fri, 14 May 2010 08:49:08 -0600
From: Edgar Sherman <no@email.com>
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Subject: Re: SBS2008-vista : connection lost after 10 hours
References: <mn.6bfd7da50ae2dbb7.85122@base.be.invalid> <4bec7e2a@solutions.advantagedatabase.com> <mn.73277da51bfe3c86.85122@base.be.invalid>
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If this is the case, try moving the application to the PC itself. You
will still use client/server since your ADS is still installed on the
server that you connect to. Your description indicated that you run the
program across the network. whereas you run outlook directly on the PC.

Edgar

On 5/14/2010 5:27 AM, cyclon wrote:
> Hello,
>
> I'll have to check this with the company that installed our network.
> Somebody else told me this :
>
> 10 hours is the default time that a kerberos ticket is issued for in a
> windows Active Directory network. That glitch is not the network
> dropping, but is the server replying with an explicit access denied to
> the client because the ticket is expired. The client automatically
> requests a renewal of the ticket, which is granted, so for most network
> activities, you never "see" that renegotiation. A network application
> should be able to anticipate and accommodate this as this is standard
> practice in any network.
>
> I'll have to check this too. I'll keep you informed.
>
> Greetings,
>
> cyclon
>
>
>
> Josh Neider schreef op 14/05/2010 het volgende :
>
>> Hello Cyclon,
>>
>> I'm curious if your DHCP server assigns IP's with a lease time of 10
>> hours?
>>
>>>
>>> we have an SBS2008 server, and vista professional pc's.
>>>
>>> Our ERP program is based on advantage database server from sybase.
>>> This program is completely installed on SBS2008, to start it on a
>>> vista pc, you only have to doubleclick on the start-icon that is on a
>>> network drive. The program then starts on the vista pc. The only
>>> requirement is that there has to a continuous connection between the
>>> vista pc and the sbs2008 server at all time.
>>>
>>> Now it occurs that this program crashes, apparently because this
>>> connection is lost briefly somehow. We have determined that this
>>> crash happens 10 hours after the user has logged on to windows on his
>>> vista pc. It doesn't matter when the ERP program is started. If for
>>> example you log your vista pc on to the sbs2008 server at 8:00 AM,
>>> the crash will happen at +/- 18:00. It does not matter if you have
>>> started the ERP program at 8:30 or at 17:55, if it is running at
>>> 18:00, it will crash.
>>>
>>> Our ERP program is the only program that has a problem. Outlook has
>>> no problem when it is connected on exchange server. Word, excel,
>>> autocad, all these programs work fine. Internet explorer : no problem.
>>>
>>> The connection between the server and the pc must apparently be
>>> broken very shortly, and be restored immediately.
>>>
>>> Does anybody have any idea that could explain this? I don't think it
>>> is a problem within advantage, but maybe somebody else has had the
>>> same problem, and knows how to fix this.
>
>


cyclon Posted on 2010-05-20 09:46:05.0Z
Subject: Re: SBS2008-vista : connection lost after 10 hours
From: cyclon <cyclon@base.be.invalid>
References: <mn.6bfd7da50ae2dbb7.85122@base.be.invalid> <4bec7e2a@solutions.advantagedatabase.com> <mn.73277da51bfe3c86.85122@base.be.invalid>
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Hello,

the problem is solved, it was caused by the kerberos ticket. We
changed the time to 12 hours, and now there is no longer a problem.

greetings,

cyclon



cyclon schreef op 14/05/2010 het volgende :

> Hello,
>
> I'll have to check this with the company that installed our network.
> Somebody else told me this :
>
> 10 hours is the default time that a kerberos ticket is issued for in a
> windows Active Directory network. That glitch is not the network dropping,
> but is the server replying with an explicit access denied to the client
> because the ticket is expired. The client automatically requests a renewal
> of the ticket, which is granted, so for most network activities, you never
> "see" that renegotiation. A network application should be able to anticipate
> and accommodate this as this is standard practice in any network.
>
> I'll have to check this too. I'll keep you informed.
>
> Greetings,
>
> cyclon
>
>
>
> Josh Neider schreef op 14/05/2010 het volgende :
>
>> Hello Cyclon,
>>
>> I'm curious if your DHCP server assigns IP's with a lease time of 10 hours?
>>
>>>
>>> we have an SBS2008 server, and vista professional pc's.
>>>
>>> Our ERP program is based on advantage database server from sybase. This
>>> program is completely installed on SBS2008, to start it on a vista pc, you
>>> only have to doubleclick on the start-icon that is on a network drive. The
>>> program then starts on the vista pc. The only requirement is that there
>>> has to a continuous connection between the vista pc and the sbs2008 server
>>> at all time.
>>>
>>> Now it occurs that this program crashes, apparently because this
>>> connection is lost briefly somehow. We have determined that this crash
>>> happens 10 hours after the user has logged on to windows on his vista pc.
>>> It doesn't matter when the ERP program is started. If for example you log
>>> your vista pc on to the sbs2008 server at 8:00 AM, the crash will happen
>>> at +/- 18:00. It does not matter if you have started the ERP program at
>>> 8:30 or at 17:55, if it is running at 18:00, it will crash.
>>>
>>> Our ERP program is the only program that has a problem. Outlook has no
>>> problem when it is connected on exchange server. Word, excel, autocad, all
>>> these programs work fine. Internet explorer : no problem.
>>>
>>> The connection between the server and the pc must apparently be broken
>>> very shortly, and be restored immediately.
>>>
>>> Does anybody have any idea that could explain this? I don't think it is a
>>> problem within advantage, but maybe somebody else has had the same
>>> problem, and knows how to fix this.