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Posted

I thank everyone for their help on this forum. Besides my LPT1: printing

issue, we also have a Serial Port issue. We have a program that monitors

Mocon units (burst testers) that should read the data from the testing unit

and store it into a SQL server database table. The main program is a VB6

app, which hopefully soon, will be converted for a .Net environment.

 

I am having the same issue with the Serial port. We test it on a standard

PC and it works fine. When we plug it into a thin client, nothing happens.

At least with my printing issue, I get a print error 482.

 

Could this be a user policy issue coming from the Terminal Server. I have

not yet looked at the TS event log yet. I will do that next.

 

Also, being new to Terminal Server and thin clients, does anyone have any

recommended books, sites, etc, that I can use for training?

 

Thanks.

  • Replies 6
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Guest Vera Noest [MVP]
Posted

Re: Ports and more

 

Have you enabled COM port redirection on the server and the

clients?

Check here for more info:

 

How can I verify that my local COM ports are redirected?

http://ts.veranoest.net/ts_faq_client_resources.htm#verify_COM_port

s

 

_________________________________________________________

Vera Noest

MCSE, CCEA, Microsoft MVP - Terminal Server

TS troubleshooting: http://ts.veranoest.net

___ please respond in newsgroup, NOT by private email ___

 

=?Utf-8?B?QnJhZA==?= <Brad@discussions.microsoft.com> wrote on 19

mar 2008 in microsoft.public.windows.terminal_services:

> I thank everyone for their help on this forum. Besides my LPT1:

> printing issue, we also have a Serial Port issue. We have a

> program that monitors Mocon units (burst testers) that should

> read the data from the testing unit and store it into a SQL

> server database table. The main program is a VB6 app, which

> hopefully soon, will be converted for a .Net environment.

>

> I am having the same issue with the Serial port. We test it on

> a standard PC and it works fine. When we plug it into a thin

> client, nothing happens. At least with my printing issue, I get

> a print error 482.

>

> Could this be a user policy issue coming from the Terminal

> Server. I have not yet looked at the TS event log yet. I will

> do that next.

>

> Also, being new to Terminal Server and thin clients, does anyone

> have any recommended books, sites, etc, that I can use for

> training?

>

> Thanks.

Posted

Re: Ports and more

 

Vera,

 

We looked at the server output by running the change port /query in the

command window and it does show that the ports are not being redirected. I

think it said something like COM1=\Device\Serial0.

 

But the KB solution (938645 - You cannot communicate with the local device

by using a redirected COM port in a Windows Server 2003-based terminal-server

session) does not provide much help.

 

This article states to resolve this problem immediately to contact Microsoft

Customer Support.

 

I guess I will have to do that unless you know of something else I can check

or do.

 

Thanks.

 

"Vera Noest [MVP]" wrote:

> Have you enabled COM port redirection on the server and the

> clients?

> Check here for more info:

>

> How can I verify that my local COM ports are redirected?

> http://ts.veranoest.net/ts_faq_client_resources.htm#verify_COM_port

> s

>

> _________________________________________________________

> Vera Noest

> MCSE, CCEA, Microsoft MVP - Terminal Server

> TS troubleshooting: http://ts.veranoest.net

> ___ please respond in newsgroup, NOT by private email ___

>

> =?Utf-8?B?QnJhZA==?= <Brad@discussions.microsoft.com> wrote on 19

> mar 2008 in microsoft.public.windows.terminal_services:

>

> > I thank everyone for their help on this forum. Besides my LPT1:

> > printing issue, we also have a Serial Port issue. We have a

> > program that monitors Mocon units (burst testers) that should

> > read the data from the testing unit and store it into a SQL

> > server database table. The main program is a VB6 app, which

> > hopefully soon, will be converted for a .Net environment.

> >

> > I am having the same issue with the Serial port. We test it on

> > a standard PC and it works fine. When we plug it into a thin

> > client, nothing happens. At least with my printing issue, I get

> > a print error 482.

> >

> > Could this be a user policy issue coming from the Terminal

> > Server. I have not yet looked at the TS event log yet. I will

> > do that next.

> >

> > Also, being new to Terminal Server and thin clients, does anyone

> > have any recommended books, sites, etc, that I can use for

> > training?

> >

> > Thanks.

>

Guest Vera Noest [MVP]
Posted

Re: Ports and more

 

But have you made sure that COM port redirection is enabled?

By default, it is disabled.

Check on the server in Terminal Services Configuration - rdp-tcp

connection properties, and on the rdp client - local resources

 

KB938645 is about a situation where the COM port *is* succesfully

redirected, but the application cannot communicate with it.

That's not your situation.

_________________________________________________________

Vera Noest

MCSE, CCEA, Microsoft MVP - Terminal Server

TS troubleshooting: http://ts.veranoest.net

___ please respond in newsgroup, NOT by private email ___

 

=?Utf-8?B?QnJhZA==?= <Brad@discussions.microsoft.com> wrote on 25

mar 2008 in microsoft.public.windows.terminal_services:

> Vera,

>

> We looked at the server output by running the change port

> /query in the command window and it does show that the ports are

> not being redirected. I think it said something like

> COM1=\Device\Serial0.

>

> But the KB solution (938645 - You cannot communicate with the

> local device by using a redirected COM port in a Windows Server

> 2003-based terminal-server session) does not provide much help.

>

> This article states to resolve this problem immediately to

> contact Microsoft Customer Support.

>

> I guess I will have to do that unless you know of something else

> I can check or do.

>

> Thanks.

>

> "Vera Noest [MVP]" wrote:

>

>> Have you enabled COM port redirection on the server and the

>> clients?

>> Check here for more info:

>>

>> How can I verify that my local COM ports are redirected?

>> http://ts.veranoest.net/ts_faq_client_resources.htm#verify_COM_p

>> ort s

>>

>> _________________________________________________________

>> Vera Noest

>> MCSE, CCEA, Microsoft MVP - Terminal Server

>> TS troubleshooting: http://ts.veranoest.net

>> ___ please respond in newsgroup, NOT by private email ___

>>

>> =?Utf-8?B?QnJhZA==?= <Brad@discussions.microsoft.com> wrote on

>> 19 mar 2008 in microsoft.public.windows.terminal_services:

>>

>> > I thank everyone for their help on this forum. Besides my

>> > LPT1: printing issue, we also have a Serial Port issue. We

>> > have a program that monitors Mocon units (burst testers) that

>> > should read the data from the testing unit and store it into

>> > a SQL server database table. The main program is a VB6 app,

>> > which hopefully soon, will be converted for a .Net

>> > environment.

>> >

>> > I am having the same issue with the Serial port. We test it

>> > on a standard PC and it works fine. When we plug it into a

>> > thin client, nothing happens. At least with my printing

>> > issue, I get a print error 482.

>> >

>> > Could this be a user policy issue coming from the Terminal

>> > Server. I have not yet looked at the TS event log yet. I

>> > will do that next.

>> >

>> > Also, being new to Terminal Server and thin clients, does

>> > anyone have any recommended books, sites, etc, that I can use

>> > for training?

>> >

>> > Thanks.

Posted

RE: Ports and more

 

Vera,

 

I verified on the Terminal Server that the ports are enabled. Now, the thin

client's local resources did NOT have the port enabled. I did this and I am

now coming up with a VB error - "Runtime error 8012 - The Device Is Not open."

 

I still struggle with another error; a printer 482 error, which I tracked

down to be the printer information cannot be found. But I did verify that

the printer driver is installed on the server.

 

Oh, I do still need to look at the Event Log on the server.

 

"Brad" wrote:

> I thank everyone for their help on this forum. Besides my LPT1: printing

> issue, we also have a Serial Port issue. We have a program that monitors

> Mocon units (burst testers) that should read the data from the testing unit

> and store it into a SQL server database table. The main program is a VB6

> app, which hopefully soon, will be converted for a .Net environment.

>

> I am having the same issue with the Serial port. We test it on a standard

> PC and it works fine. When we plug it into a thin client, nothing happens.

> At least with my printing issue, I get a print error 482.

>

> Could this be a user policy issue coming from the Terminal Server. I have

> not yet looked at the TS event log yet. I will do that next.

>

> Also, being new to Terminal Server and thin clients, does anyone have any

> recommended books, sites, etc, that I can use for training?

>

> Thanks.

Guest Vera Noest [MVP]
Posted

RE: Ports and more

 

Seems that your application is suffering from the issue described

in KB 938645. I'd call Microsoft and get the hotfix.

 

About the printer: most likely, the printer driver is not TS

compatible. A lot of 3rd party printer drivers aren't. Which

printer model is this?

Have you tried to remap it to a native printer, using:

 

239088 - Windows 2000 or Windows Server 2003 Terminal Services

server logs events 1111, 1105, and 1106

http://support.microsoft.com/?kbid=239088

_________________________________________________________

Vera Noest

MCSE, CCEA, Microsoft MVP - Terminal Server

TS troubleshooting: http://ts.veranoest.net

___ please respond in newsgroup, NOT by private email ___

 

=?Utf-8?B?QnJhZA==?= <Brad@discussions.microsoft.com> wrote on 26

mar 2008 in microsoft.public.windows.terminal_services:

> Vera,

>

> I verified on the Terminal Server that the ports are enabled.

> Now, the thin client's local resources did NOT have the port

> enabled. I did this and I am now coming up with a VB error -

> "Runtime error 8012 - The Device Is Not open."

>

> I still struggle with another error; a printer 482 error, which

> I tracked down to be the printer information cannot be found.

> But I did verify that the printer driver is installed on the

> server.

>

> Oh, I do still need to look at the Event Log on the server.

>

> "Brad" wrote:

>

>> I thank everyone for their help on this forum. Besides my

>> LPT1: printing issue, we also have a Serial Port issue. We

>> have a program that monitors Mocon units (burst testers) that

>> should read the data from the testing unit and store it into a

>> SQL server database table. The main program is a VB6 app,

>> which hopefully soon, will be converted for a .Net environment.

>>

>> I am having the same issue with the Serial port. We test it on

>> a standard PC and it works fine. When we plug it into a thin

>> client, nothing happens. At least with my printing issue, I get

>> a print error 482.

>>

>> Could this be a user policy issue coming from the Terminal

>> Server. I have not yet looked at the TS event log yet. I will

>> do that next.

>>

>> Also, being new to Terminal Server and thin clients, does

>> anyone have any recommended books, sites, etc, that I can use

>> for training?

>>

>> Thanks.

Posted

Re: Ports and more

 

Vera,

 

Also, just to let you know, we just opened a support ticket with Microsoft

so when I find something out from them, I will certainly post it so you know.

 

"Vera Noest [MVP]" wrote:

> But have you made sure that COM port redirection is enabled?

> By default, it is disabled.

> Check on the server in Terminal Services Configuration - rdp-tcp

> connection properties, and on the rdp client - local resources

>

> KB938645 is about a situation where the COM port *is* succesfully

> redirected, but the application cannot communicate with it.

> That's not your situation.

> _________________________________________________________

> Vera Noest

> MCSE, CCEA, Microsoft MVP - Terminal Server

> TS troubleshooting: http://ts.veranoest.net

> ___ please respond in newsgroup, NOT by private email ___

>

> =?Utf-8?B?QnJhZA==?= <Brad@discussions.microsoft.com> wrote on 25

> mar 2008 in microsoft.public.windows.terminal_services:

>

> > Vera,

> >

> > We looked at the server output by running the change port

> > /query in the command window and it does show that the ports are

> > not being redirected. I think it said something like

> > COM1=\Device\Serial0.

> >

> > But the KB solution (938645 - You cannot communicate with the

> > local device by using a redirected COM port in a Windows Server

> > 2003-based terminal-server session) does not provide much help.

> >

> > This article states to resolve this problem immediately to

> > contact Microsoft Customer Support.

> >

> > I guess I will have to do that unless you know of something else

> > I can check or do.

> >

> > Thanks.

> >

> > "Vera Noest [MVP]" wrote:

> >

> >> Have you enabled COM port redirection on the server and the

> >> clients?

> >> Check here for more info:

> >>

> >> How can I verify that my local COM ports are redirected?

> >> http://ts.veranoest.net/ts_faq_client_resources.htm#verify_COM_p

> >> ort s

> >>

> >> _________________________________________________________

> >> Vera Noest

> >> MCSE, CCEA, Microsoft MVP - Terminal Server

> >> TS troubleshooting: http://ts.veranoest.net

> >> ___ please respond in newsgroup, NOT by private email ___

> >>

> >> =?Utf-8?B?QnJhZA==?= <Brad@discussions.microsoft.com> wrote on

> >> 19 mar 2008 in microsoft.public.windows.terminal_services:

> >>

> >> > I thank everyone for their help on this forum. Besides my

> >> > LPT1: printing issue, we also have a Serial Port issue. We

> >> > have a program that monitors Mocon units (burst testers) that

> >> > should read the data from the testing unit and store it into

> >> > a SQL server database table. The main program is a VB6 app,

> >> > which hopefully soon, will be converted for a .Net

> >> > environment.

> >> >

> >> > I am having the same issue with the Serial port. We test it

> >> > on a standard PC and it works fine. When we plug it into a

> >> > thin client, nothing happens. At least with my printing

> >> > issue, I get a print error 482.

> >> >

> >> > Could this be a user policy issue coming from the Terminal

> >> > Server. I have not yet looked at the TS event log yet. I

> >> > will do that next.

> >> >

> >> > Also, being new to Terminal Server and thin clients, does

> >> > anyone have any recommended books, sites, etc, that I can use

> >> > for training?

> >> >

> >> > Thanks.

>


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