Modem works in DOS, but not in Windows | Intel PRO/100 instruction

4-58 PRO/100 LAN+Modem PC Card User’s Guide

modem driver (IMENABLE). If they do not match, either there are multiple COMx keywords listed in the file or there are multiple configuration files.

4Run Microsoft Diagnostics (MSD) and see if the COM port shows up. On some machines MSD will not show what COM port was configured for the PRO/100 PC Card. If it doesn’t, try the following command:

ECHO ATDTNNNNNNN > COMX:

where nnnnnnn is a telephone you can hear ring, and x is the COM port number. If the phone rings, this indicates that the COM port is correctly configured and that the modem is able to dial.

5If the COM port does not show up after running MSD, try

changing the x the COMx keyword to a different port value (start with COM4 and try each value in sequence through COM1). Power down the computer between trials.

The modem works in DOS, but not in Windows

A. Verify that there are no communications/fax programs automatically loading on Windows startup or running in the background.

B. If you are using Card and Socket Services, try the following:

1In Windows, select Control Panel, Ports, and under Advanced, set the selected COM port IOADDRESS to default, set the INTER- RUPT LEVEL to the value specified by the INT or INTERRUPT keyword in the LAN configuration file. You should also modify the SYSTEM.INI file as follows: set COMxIRQ=y, where x is the COM port the PRO/100 PC Card is configured as, and y is the interrupt the LAN driver is using (as stated in the NET.CFG or PROTOCOL.INI file).

2If you are using the M16BODI driver and you receive a blue warning screen stating that “A hardware interrupt has occurred,” try

adding the following section to the SYSTEM.INI file:

[VIPX]

VIRTUALIZE IRQX = OFF

where x is the interrupt number (in hexadecimal notation) used by the M16BODI driver.

PRO/100 specifications

The Intel PRO/100 network adapter series, introduced in the mid-1990s, revolutionized networking by providing robust performance and reliability for both desktop and server environments. These adapters were pivotal in enabling fast Ethernet connectivity, helping to establish standards that would be instrumental in the advancement of network technology.

One of the primary features of the Intel PRO/100 series is its support for 10/100 Mbps Ethernet speeds. This dual-speed capability allowed organizations to transition seamlessly from older 10 Mbps networks to faster 100 Mbps connections without the need for a complete hardware overhaul. This adaptability made the PRO/100 cards a flexible choice for various network architectures.

Another significant characteristic of the Intel PRO/100 is its use of advanced bus mastering technology. This feature enhances data throughput by allowing the network adapter to take control of the system's bus when transmitting data. By doing so, it minimizes CPU overhead, which results in better overall system performance and efficient network communication. This was particularly beneficial in environments where network traffic was heavy, allowing the processors to handle other tasks without being bogged down.

The Intel PRO/100 series was also incorporated with Intel’s Plug and Play technology. This innovation simplified the installation process, automatically detecting the hardware and configuring it to work with existing system resources. As a result, system administrators could save time and reduce errors during setup, making it an attractive option for businesses looking to streamline their IT operations.

In terms of compatibility, the PRO/100 adapters supported a variety of network operating systems, including Windows NT, Linux, and Novell NetWare, providing users with a versatile solution for integrating into existing infrastructures. Furthermore, the cards were designed with high-quality, durable components to ensure longevity and reliability even in demanding environments.

Intel also emphasized the importance of network security and management with these adapters. The PRO/100 series featured capabilities for diagnostics and performance monitoring, allowing administrators to quickly identify and resolve network issues. Advanced features like Wake-on-LAN (WoL) provided additional functionality, enabling remote management and maintenance.

In conclusion, the Intel PRO/100 network adapter series represented a significant leap in networking technology during its time. With features such as dual-speed functionality, bus mastering, Plug and Play installation, and extensive compatibility, it laid the foundation for future innovations in network communication, solidifying Intel's reputation as a leader in networking solutions. Whether for small businesses or large enterprises, the PRO/100 series offered the reliability and performance critical to maintaining efficient and effective network operations.

Intel PRO/100 appendix Modem works in DOS, but not in Windows

Models: PRO/100