Hi: I have a server running kernel 2.2.14-5.0smp on a dual Pentium III 550 Mhz, 512 Mb RAM and three 18.2 Gb SCSI RAID5. NIC is a Kingston card. Around 300 clients use this server for mail and samba services. At about 11:00 am every day, the network slows down so much, that users connected through a router can not even ping the machine. Local in-house users can continue to access the server, albeit much slower. Two other servers, a AS/400 and a RS6000 connected to the same network keep going as usual. Executing a network restart solves the problem. I have investigated on Deja News and it seems other people have reported a similar problem but no concrete solutions. I found an article at http://www.icase.edu/coral/LinuxTCP2.html and they mention a patch for several versions of 2.2.x kernel, including this one. They claim this could solve the problem. I have looked into /var/log/messages and don't see anything unusual, except for a line: Aug 27 08:40:45 gponce -- MARK -- which I don't know what it means. Has anybody had a similar problem, and if so, could you then point the way? Thank you. -- Alfredo J. Cole alfredo@acyc.com Tegucigalpa, D. C., Honduras ------------------------------------------------------- -- Alfredo J. Cole alfredo@acyc.com Tegucigalpa, D. C., Honduras