Appendix C: Troubleshooting
Windows NT Version 4.0 and 3.51
The most common problem encountered on Windows NT for Ethernet devices is a mismatch of the port’s speed and media settings to those in use on the network. The most simple check of correct cabling is to observe the status lights on the handle of the card.
Once the card is installed in the system, the software is installed, and the module is wired to your network hub, the LINK light should be illuminated. If LINK fails to light, check that your cable type and media settings are correct. Appendix B provides cable information for all configurations.
If you are connected to a FAST hub, be sure card is set to AUTO1, FAST or FAST Full Duplex, depending on the capability of your hub.
If you are connected to a 10Mb/sec hub, the card should be set to AUTO1, Twisted Pair or Twisted Pair Full Duplex, depending on the capability of your hub.
Cables from the
Cables from the
1TIP: If you are certain your cable type is correct, but you are not seeing LINK, setting the port to match the hub port exactly (ex. FAST, not AUTO). Some hubs have trouble with cards set to AUTO negotiate.
Error messages
The error messages are logged in the Windows NT Error Log and can be seen using the Error Log Viewer (in NT's Administration Tools group).
Each error message has a standard NDIS error code and a driver's additional code. The additional codes are listed in Table 8.
Error Message |
| Code |
DC21X4_ERRMSG_REGISTRY |
| 0x01 |
DC21X4_ERRMSG_ALLOC_MEMORY |
| 0x02 |
DC21X4_ERRMSG_SROM |
| 0x03 |
DC21X4_ERRMSG_MEDIA |
| 0x04 |
DC21X4_ERRMSG_LOAD_CAM |
| 0x05 |
DC21X4_ERRMSG_SYSTEM_ERROR |
| 0x06 |
32