Random Session Disconnects

[Guest legpeg2008]

Hello,

 

Over the last 48hrs we have been getting issues with about 16-26 users being

disconnected from our 6 of our 7 terminal servers. They are not all

disconnected all at the same time- one user will be disconnected another can

then log in. It does not appear to be specific to one server or one

particular branch. It appears to only be affecting our remote sites which

connect via a managed MPLS vpn network (head office appears to be

unaffected). I can see in terminal services manager the 16 or so users with

disconnected sessions. This to me sounds like a licensing issue, but we have

over 300 according to the licensing server - with only 200 users connecting.

I have checked the session timeouts on both the rdp config and the user

config in AD. We use windows 2003 SP2.

 

Any ideas?

 

Thanks

 

Matt

[Guest Vera Noest [MVP]]

Re: Random Session Disconnects

 

Why on earth does this sounds like a licensing issue to you???

A lack of licenses is never specific to certain networks/sites, and

it never causes disconnected sessions, it prevents sessions from

being established alltogether.

 

To me this sounds like a network problem. Have you checked for lost

packets?

Have you checked the EventLog on the server?

Are users disconnected only when they are idle for one or more

minutes, or are they also disconnected when they are actively

working (typing, moving the mouse)?

Do they get any message on screen when they are disconnected?

Are users having trouble establishing new connections? If so, what

error message do they get?

_________________________________________________________

Vera Noest

MCSE, CCEA, Microsoft MVP - Terminal Server

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

*----------- Please reply in newsgroup -------------*

 

"legpeg2008" <mattj@peggonleg.eclipse.co.uk(donotspam)> wrote on

28 maj 2008:

> Hello,

>

> Over the last 48hrs we have been getting issues with about 16-26

> users being disconnected from our 6 of our 7 terminal servers.

> They are not all disconnected all at the same time- one user

> will be disconnected another can then log in. It does not appear

> to be specific to one server or one particular branch. It

> appears to only be affecting our remote sites which connect via

> a managed MPLS vpn network (head office appears to be

> unaffected). I can see in terminal services manager the 16 or so

> users with disconnected sessions. This to me sounds like a

> licensing issue, but we have over 300 according to the licensing

> server - with only 200 users connecting. I have checked the

> session timeouts on both the rdp config and the user config in

> AD. We use windows 2003 SP2.

>

> Any ideas?

>

> Thanks

>

> Matt

[Guest legpeg2008]

Re: Random Session Disconnects

 

OK Point taken. I though it seemed like the first place to start. I've done

some more investigation:-

 

On the MPLS VPN network we are losing packets. We are only losing packets at

the sites that connect into the MPLS via ADSL. We have one site that

connects into this via SDSL which no user has reported problems from. Our

head office connects to the MPLS via a 2mpbs leased line. Our network

provider has said that everything is within limits, and they say the don't

have any problems. All servers are on the lan within a gigabit backbone (at

head office). All remote sites use thin clients. There are no servers at

remote sites all at Head Office.

 

Users are disconnected when they actually are using their terminal. The

session will freeze and then terminal will re-connect back to the logon

screen. No user has reported any error messages and they have not reported

problems when connecting to a new session. Although we have had a few

corrupted profiles lately (which were reported in the eventlog). We don't

use roaming profiles (I have wanted to set these up but time has never

allowed). The corrupted profiles started after a message on the server

saying "Windows - Low on Registry Space the system has reached the maximum

size allowed for the system part of the registry. additional storage

requests will be ignored". We do have UPHC clean running on all TS as well.

 

I have tried setting the group policy setting for keepAlive to see if that

helps.

 

Any suggestion would be very helpful

 

Thanks

 

"Vera Noest [MVP]" <Vera.Noest@remove-this.hem.utfors.se> wrote in message

news:Xns9AAD90FF42BF0veranoesthemutforsse@207.46.248.16...

> Why on earth does this sounds like a licensing issue to you???

> A lack of licenses is never specific to certain networks/sites, and

> it never causes disconnected sessions, it prevents sessions from

> being established alltogether.

>

> To me this sounds like a network problem. Have you checked for lost

> packets?

> Have you checked the EventLog on the server?

> Are users disconnected only when they are idle for one or more

> minutes, or are they also disconnected when they are actively

> working (typing, moving the mouse)?

> Do they get any message on screen when they are disconnected?

> Are users having trouble establishing new connections? If so, what

> error message do they get?

> _________________________________________________________

> Vera Noest

> MCSE, CCEA, Microsoft MVP - Terminal Server

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

> *----------- Please reply in newsgroup -------------*

>

> "legpeg2008" <mattj@peggonleg.eclipse.co.uk(donotspam)> wrote on

> 28 maj 2008:

>

>> Hello,

>>

>> Over the last 48hrs we have been getting issues with about 16-26

>> users being disconnected from our 6 of our 7 terminal servers.

>> They are not all disconnected all at the same time- one user

>> will be disconnected another can then log in. It does not appear

>> to be specific to one server or one particular branch. It

>> appears to only be affecting our remote sites which connect via

>> a managed MPLS vpn network (head office appears to be

>> unaffected). I can see in terminal services manager the 16 or so

>> users with disconnected sessions. This to me sounds like a

>> licensing issue, but we have over 300 according to the licensing

>> server - with only 200 users connecting. I have checked the

>> session timeouts on both the rdp config and the user config in

>> AD. We use windows 2003 SP2.

>>

>> Any ideas?

>>

>> Thanks

>>

>> Matt

[Guest Vera Noest [MVP]]

Re: Random Session Disconnects

 

OK, that seems to confirm that it is a network problem, not a TS

problem.

I'd post to a networking newsgroup, you'll probably get better help

there.

_________________________________________________________

Vera Noest

MCSE, CCEA, Microsoft MVP - Terminal Server

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

___ please respond in newsgroup, NOT by private email ___

 

"legpeg2008" <mattj@peggonleg.eclipse.co.uk(donotspam)> wrote on

05 jun 2008 in microsoft.public.windows.terminal_services:

> OK Point taken. I though it seemed like the first place to

> start. I've done some more investigation:-

>

> On the MPLS VPN network we are losing packets. We are only

> losing packets at the sites that connect into the MPLS via ADSL.

> We have one site that connects into this via SDSL which no user

> has reported problems from. Our head office connects to the MPLS

> via a 2mpbs leased line. Our network provider has said that

> everything is within limits, and they say the don't have any

> problems. All servers are on the lan within a gigabit backbone

> (at head office). All remote sites use thin clients. There are

> no servers at remote sites all at Head Office.

>

> Users are disconnected when they actually are using their

> terminal. The session will freeze and then terminal will

> re-connect back to the logon screen. No user has reported any

> error messages and they have not reported problems when

> connecting to a new session. Although we have had a few

> corrupted profiles lately (which were reported in the eventlog).

> We don't use roaming profiles (I have wanted to set these up but

> time has never allowed). The corrupted profiles started after a

> message on the server saying "Windows - Low on Registry Space

> the system has reached the maximum size allowed for the system

> part of the registry. additional storage requests will be

> ignored". We do have UPHC clean running on all TS as well.

>

> I have tried setting the group policy setting for keepAlive to

> see if that helps.

>

> Any suggestion would be very helpful

>

> Thanks

>

> "Vera Noest [MVP]" <Vera.Noest@remove-this.hem.utfors.se> wrote

> in message

> news:Xns9AAD90FF42BF0veranoesthemutforsse@207.46.248.16...

>> Why on earth does this sounds like a licensing issue to you???

>> A lack of licenses is never specific to certain networks/sites,

>> and it never causes disconnected sessions, it prevents sessions

>> from being established alltogether.

>>

>> To me this sounds like a network problem. Have you checked for

>> lost packets?

>> Have you checked the EventLog on the server?

>> Are users disconnected only when they are idle for one or more

>> minutes, or are they also disconnected when they are actively

>> working (typing, moving the mouse)?

>> Do they get any message on screen when they are disconnected?

>> Are users having trouble establishing new connections? If so,

>> what error message do they get?

>> _________________________________________________________

>> Vera Noest

>> MCSE, CCEA, Microsoft MVP - Terminal Server

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

>> *----------- Please reply in newsgroup -------------*

>>

>> "legpeg2008" <mattj@peggonleg.eclipse.co.uk(donotspam)> wrote

>> on 28 maj 2008:

>>

>>> Hello,

>>>

>>> Over the last 48hrs we have been getting issues with about

>>> 16-26 users being disconnected from our 6 of our 7 terminal

>>> servers. They are not all disconnected all at the same time-

>>> one user will be disconnected another can then log in. It does

>>> not appear to be specific to one server or one particular

>>> branch. It appears to only be affecting our remote sites which

>>> connect via a managed MPLS vpn network (head office appears to

>>> be unaffected). I can see in terminal services manager the 16

>>> or so users with disconnected sessions. This to me sounds like

>>> a licensing issue, but we have over 300 according to the

>>> licensing server - with only 200 users connecting. I have

>>> checked the session timeouts on both the rdp config and the

>>> user config in AD. We use windows 2003 SP2.

>>>

>>> Any ideas?

>>>

>>> Thanks

>>>

>>> Matt

[Guest legpeg2008]

Re: Random Session Disconnects

 

Thanks for your help

 

We had our network consultant who designed our network come back and give

our network a clean bill of health. His investigations suggest that it is

our MPLS providers problem.

 

 

 

 

"Vera Noest [MVP]" <vera.noest@remove-this.hem.utfors.se> wrote in message

news:Xns9AB593742ACBEveranoesthemutforsse@207.46.248.16...

> OK, that seems to confirm that it is a network problem, not a TS

> problem.

> I'd post to a networking newsgroup, you'll probably get better help

> there.

> _________________________________________________________

> Vera Noest

> MCSE, CCEA, Microsoft MVP - Terminal Server

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

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

>

> "legpeg2008" <mattj@peggonleg.eclipse.co.uk(donotspam)> wrote on

> 05 jun 2008 in microsoft.public.windows.terminal_services:

>

>> OK Point taken. I though it seemed like the first place to

>> start. I've done some more investigation:-

>>

>> On the MPLS VPN network we are losing packets. We are only

>> losing packets at the sites that connect into the MPLS via ADSL.

>> We have one site that connects into this via SDSL which no user

>> has reported problems from. Our head office connects to the MPLS

>> via a 2mpbs leased line. Our network provider has said that

>> everything is within limits, and they say the don't have any

>> problems. All servers are on the lan within a gigabit backbone

>> (at head office). All remote sites use thin clients. There are

>> no servers at remote sites all at Head Office.

>>

>> Users are disconnected when they actually are using their

>> terminal. The session will freeze and then terminal will

>> re-connect back to the logon screen. No user has reported any

>> error messages and they have not reported problems when

>> connecting to a new session. Although we have had a few

>> corrupted profiles lately (which were reported in the eventlog).

>> We don't use roaming profiles (I have wanted to set these up but

>> time has never allowed). The corrupted profiles started after a

>> message on the server saying "Windows - Low on Registry Space

>> the system has reached the maximum size allowed for the system

>> part of the registry. additional storage requests will be

>> ignored". We do have UPHC clean running on all TS as well.

>>

>> I have tried setting the group policy setting for keepAlive to

>> see if that helps.

>>

>> Any suggestion would be very helpful

>>

>> Thanks

>>

>> "Vera Noest [MVP]" <Vera.Noest@remove-this.hem.utfors.se> wrote

>> in message

>> news:Xns9AAD90FF42BF0veranoesthemutforsse@207.46.248.16...

>>> Why on earth does this sounds like a licensing issue to you???

>>> A lack of licenses is never specific to certain networks/sites,

>>> and it never causes disconnected sessions, it prevents sessions

>>> from being established alltogether.

>>>

>>> To me this sounds like a network problem. Have you checked for

>>> lost packets?

>>> Have you checked the EventLog on the server?

>>> Are users disconnected only when they are idle for one or more

>>> minutes, or are they also disconnected when they are actively

>>> working (typing, moving the mouse)?

>>> Do they get any message on screen when they are disconnected?

>>> Are users having trouble establishing new connections? If so,

>>> what error message do they get?

>>> _________________________________________________________

>>> Vera Noest

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

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

>>> *----------- Please reply in newsgroup -------------*

>>>

>>> "legpeg2008" <mattj@peggonleg.eclipse.co.uk(donotspam)> wrote

>>> on 28 maj 2008:

>>>

>>>> Hello,

>>>>

>>>> Over the last 48hrs we have been getting issues with about

>>>> 16-26 users being disconnected from our 6 of our 7 terminal

>>>> servers. They are not all disconnected all at the same time-

>>>> one user will be disconnected another can then log in. It does

>>>> not appear to be specific to one server or one particular

>>>> branch. It appears to only be affecting our remote sites which

>>>> connect via a managed MPLS vpn network (head office appears to

>>>> be unaffected). I can see in terminal services manager the 16

>>>> or so users with disconnected sessions. This to me sounds like

>>>> a licensing issue, but we have over 300 according to the

>>>> licensing server - with only 200 users connecting. I have

>>>> checked the session timeouts on both the rdp config and the

>>>> user config in AD. We use windows 2003 SP2.

>>>>

>>>> Any ideas?

>>>>

>>>> Thanks

>>>>

>>>> Matt