H003850 - SYSTEM LOSES CONNECTION W/3COM 3C590 ETHERNET CARD SYMPTOM: IBM PC 300 Series 6576 and 6586 systems with a 3Com Etherlink III PCI Bus Master 3C590 Ethernet adapter installed may intermittently lose connection to the LAN. The system intermittently loses connection with the LAN when LAN traffic is heavy. PROBLEM ISOLATION AIDS: The failure reported to IBM involved a PC 300 Series 6576 with a 3Com Etherlink III PCI Bus Master 3C590 Ethernet adapter using v4.1 3Com adapter device drivers. FIX: The failure was resolved by installing a later level of 3Com adapter device drivers. Version 5.1 was installed and the failure no longer occurred. 3Com driver updates may be obtained either from the 3Com BBS at 408-980-8204 or through the Internet at the following URL: http://www.3com.com If failures persists after updating the device drivers, continue normal problem determination to isolate the failing FRU. 3Com Etherlink III 3C590 is a trademark of the 3Com Corporation.