The problem you describe is becoming common in the 4.x versions of FBSD. I have seen these solutions voiced previously in this list.
1. Check the PC's bios, look for a toggle to disable plug-n-play function. 2. Check that your PCI Nic card is not in the first or last PCI expansion slot on the motherboard. 3. There is a problem with autonegotiation of the media settings between your NIC and your switch. The default setting of auto means the Nic card should sense the Lan for the switch or hub and set it's media type to match. There have been reports of the Nic Card media type changing on the fly between 10/100 and halfduplex and fullduplex causing the network to freeze up. To stop this use the "ifconfig" command in the rc.conf file to force the media type. Like this ifconfig_xl0="inet 10.0.10.2 media 100baseTX mediaopt full-duplex" 4 add option PCI_ENABLE_IO_MODES to your kernel source and recompile. See LINT 5. add device puc option PUC_FASTINTR to your kernel source and recompile. See LINT 6. Follow bug fix using this url http://www.freebsd.org/cgi/query-pr.cgi?pr=40636 Try one of the above one at a time until your problem goes away. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Wayne Swart Sent: Wednesday, January 29, 2003 10:12 AM To: FreeBSD Mailing list Subject: disconnecting nic Good day all you smart ppl I seem to have an unsolvable (unsovable only in my small world) problem. i have posted this problem to you guys before but no one was able to help me with it :( i have two network cards in my box (freebsd 4.7), both are accton 1207f (dc type) running at 100baseTX full-duplex. as soon as i send high volumes of data through dc0 to another box on the lan, like for instance over an ftp connection, dc0 looses its connectivity by doing an ifconfig dc0 down, and then up again, it brings the connection back up only to see it fail after a minute or so. if i remove dc1 completely from the box it works fine could this be because of irq conflicts even though dc0 and dc1 are not using the same irq's? please help me kind regards wayne To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-questions" in the body of the message