Consultor Eletrônico

Status: Verified

SYMPTOM(s):

Windows 2000 Media Sense Will Shutdown AdminServer

FACT(s) (Environment):

Progress 9.x
OpenEdge 10.x
Windows

CAUSE:

Media Sense, a function within all Windows 2000 series operating
systems, can potentially shutdown the AdminServers on those machines.

FIX:

In a true production environment if the network is sensed as down,
chances are that the immediate shutdown of the AdminServer won't
complicate matters since there isn't a network available for it to
interact with. However, in a development environment where the
machine might never be connected to the network, the inability to run
the AdminServer is a significant drawback.
Microsoft published document Q239924 which discusses a modification to
the Registry that will disable the Network Media Sense function and
allow the AdminServer to continue running with or without the network
connected.

NOTE: Please remember to backup your registry and potentially your
machine if you plan on editing the registry.


This modification only applies to TCP/IP since NetBEUI and IPX do not
monitor Media Sense.

1) Use either regedit.exe or regedt32.exe to modify the following
registry key:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters

2) Add the following key within the Parameters section:

DWORD Name DisableDHCPMediaSense
Value 1

3) Reboot the machine.

At this point, if you disconnect your network cable and you check the
network connectivity with ipconfig you will be informed that cable is
disconnected.
Windows 2000 will no longer be wiping the routing table
or performing some of the other tasks which were severing the
AdminServer.

NOTE: If you have multiple NICs and one NIC fails, then all routing
through the disabled NIC will now route through the remaining active
NIC.

There are some other side effects which may be important to some users
(for instance, mobile users).