Terminal Service session slow on Vista for just one server

[Hassan]

So I am trying to terminal service into this particular host and every click
of the mouse takes like 30 secs. Its like as if it freezes and then wakes up
when i try to navigate through the session.

So here is what I know so far..

On another Vista PC and on XP, it works fine and I can navigate through it
fast.

This behavior is being seen on 2 PCs so far and I dont know if its because
of the Cisco VPN client that we have installed. I uninstalled it as well and
it still works as such.

Infact this behaviour is to only one of the hosts that I terminal service
into and not other hosts. Other hosts work fine.

So it feels like its between my XP and this particular host and dont know
what else is stored on XP to bind that relation between the host. I tried to
connect on different networks, through VPN, without VPN, wireless and the
other in built Ethernet adapter and no luck.

It was working before and dont know whether it was the Cisco client as I
said before and that was the first host I connected to after installing the
client and making a VPN connection.

Really confused and lost here.. Nothing in the logs..

I need to TS into this one particular box on a frequent basis thats slow in
responding now and I dont want to format my Vista and try again.

Seen this ?

I am using Vista Ultimate..

 

[ThePro]

So I am trying to terminal service into this particular host and every
click of the mouse takes like 30 secs. Its like as if it freezes and then
wakes up when i try to navigate through the session.

So here is what I know so far..

See
http://mytechweblog.blogspot.com/2007/06/rdp-from-vista-slow-after-windows-2003.html .

Hope this helps.

ThePro

 

[Hassan]

Before I try that out, how can i test the current settings ?

Its says i need to do the following ...

netsh interface tcp set global rss=disabled
netsh interface tcp set global autotuninglevel=disabled

How can i see if its enabled today ? whats the command for that ? Also is
there a GUI way to see the settings and to enable/disable through the GUI
interface ?

Thanks

 

[ThePro]

See answers inline

ThePro

Before I try that out, how can i test the current settings ?

Its says i need to do the following ...

netsh interface tcp set global rss=disabled
netsh interface tcp set global autotuninglevel=disabled

How can i see if its enabled today ? whats the command for that ?

netsh interface tcp show global

Also is there a GUI way to see the settings and to enable/disable through
the GUI interface ?

None that I know of.

 

[Hassan]

Thanks a bunch.. That worked..Dont know what else will break by disabling
that in return ?

Do you know what those functionalities allow you when they were enabled ?
obviously its disabled now..dont want to break something else in return
which I may bump into down the road that needs those setting enabled

 

[ThePro]

I don't know exactly what these settings do but I know that they are new in
Vista TCP/IP stack.

You should probably re-enable them after your servers are upgraded to
Longhorn (Windows Server 2008).

ThePro

 

[Vera Noest [MVP]]

Here's the documentation:

934430 - Network connectivity may fail when you try to use Windows
Vista behind a firewall device
http://support.microsoft.com/kb/934430

And here's some more background:

TCP Receive Window Auto-Tuning
http://www.microsoft.com/technet/technetmag/issues/2007/01/CableGuy
/default.aspx
_________________________________________________________
Vera Noest
MCSE, CCEA, Microsoft MVP - Terminal Server
TS troubleshooting: http://ts.veranoest.net
___ please respond in newsgroup, NOT by private email ___

 

[Hassan]

So the article talks just about the autotuning feature.

I have also disabled rss i.e.
netsh interface tcp set global rss=disabled

What does RSS do ? Shall I turn it on and if so is it just the enabled
command ?

 

[Vera Noest [MVP]]

rss in this context stands for receive-side scaling.
More information can be found here:

927168 - TCP traffic stops after you enable both receive-side
scaling and Internet Connection Sharing in Windows Vista or in
Windows Server 2003 with Service Pack 1
http://support.microsoft.com/kb/927168

Scalable Networking with RSS
http://www.microsoft.com/whdc/device/network/NDIS_RSS.mspx
_________________________________________________________
Vera Noest
MCSE, CCEA, Microsoft MVP - Terminal Server
TS troubleshooting: http://ts.veranoest.net
___ please respond in newsgroup, NOT by private email ___