Article ID: 180931
Article Last Modified on 5/11/2005
APPLIES TO
- Microsoft SNA Server 3.0 Service Pack 4
- Microsoft SNA Server 4.0
- Microsoft SNA Server 3.0 Service Pack 2
- Microsoft SNA Server 4.0
This article was previously published under Q180931
SYMPTOMS
Microsoft SNA Server is trying to dial out too quickly and not giving the MicroGate SDLC adapter and modem time to reset the interface leads. The SDLC link service should implement a hold-down timer after dropping DTR before it raises it. SNA Server will log an event similar to the following when this problem occurs:
STATUS
Microsoft has confirmed this to be a problem in SNA Server versions 3.0, 3.0 SP1, 3.0 SP2, and 4.0.
This problem was corrected in the latest SNA Server versions 3.0 and 4.0 U.S. Service Packs. For information on obtaining these Service Packs, query on the following word in the Microsoft Knowledge Base (without the spaces):
S E R V P A C K
MORE INFORMATION
Once the update is applied, SNA Server will have a default delay of 5,000 ms (5 seconds) once DTR is dropped to allow time for the SDLC adapter and modem to reset the interface leads. To configure this delay:
- Apply the hotfix.
- Start the Windows NT Registry Editor (Regedt32.exe) and find the following key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet \Services\SnaSDLC1\Parameters\
- Add the following entry to this key:
Value Name: DropDTRDelay
Data Type: REG_DWORD
String: <delay in milliseconds>
The MicroGate SDLC adapter is manufactured by MicroGate, a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.
Keywords: kbbug kbfix KB180931
