Performance Problems with HP EtherTwist EISA Adapter

• Microsoft Windows NT operating system version 3.1
• Microsoft Windows NT Advanced Server version 3.1

SYMPTOMS

Your Windows NT computer with a Hewlett-Packard (HP) EtherTwist 27248a 32- bit EISA network adapter and TCP/IP network protocol exhibits asymmetrical performance problems. That is, you have problems transmitting, but not receiving or vise versa. For example, copying files to a Windows NT computer over the network works, but copying files from a Windows NT computer does not. Your computer can also exhibit slow performance when pinged from a client. You can get no response at all, or responses may take a long time (up to 950ms, for example).

CAUSE

Hewlett-Packard Technical Support is researching this problem.

Resolution:

Hewlett-Packard has released a self-extracting archived file, NT.EXE, containing a new driver, NTEISA.SYS dated 6/94 which corrects the problem in some cases. You can download it from the HP BBS at (916) 785-8275, or from the HP Systems forum on Compuserve. The filename is NT.EXE.

NOTE: This adapter is not listed on the May '94 Hardware Compatibility List (HCL).

STATUS

Microsoft has confirmed this to be a problem in Windows NT and Windows NT Advanced Server version 3.1. We are researching this problem and will post new information in the Microsoft Knowledge Base as it becomes available.

The EtherTwist 27248a is manufactured by Hewlett-Packard Co., a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.