Microsoft KB Archive/91099

= Upgrading LAN Manager 2.1 to WFWG 3.1 with EtherExpress Card =

Article ID: 91099

Article Last Modified on 10/23/1999

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APPLIES TO


 * Microsoft Windows for Workgroups 3.1

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This article was previously published under Q91099



SYMPTOMS
When upgrading from Microsoft LAN Manager version 2.1 to Windows for Workgroups version 3.1, Setup uses the default settings for the network card. Windows for Workgroups takes the network card settings used by LAN Manager 2.1, and finds that no setting is specified for the IRQ. Windows for Workgroups then uses the default IRQ for the network card. When the system is restarted, the following message is displayed if the default IRQ is not correct for your machine:

Protocol Manager did not accept EtherExpress 16 driver.

NDIS environment invalid, Driver not loaded.



CAUSE
If Setup detects that LAN Manager 2.1 was previously installed, it attempts to take the safest route of using settings from LAN Manager. Unfortunately, some of the settings used in Windows for Workgroups are not required for LAN Manager, particularly for the EtherExpress card.



WORKAROUND
To correct the problem, use the Network option in Control Panel to adjust the IRQ setting for the card to its proper value.

Additional query words: 3.10 lanman

Keywords: KB91099

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