NW65sp8(iniciator)---iscssi-->sles11sp1(target)
Create "testvol" in the iscsi.

From the User WS (XP_sp3+nw4.91sp5 client) log in to the Netware and map:
g: = \\grad\workvolume
u:=\\grad\testvol

This is OK.
Run copy large files (*.iso). from g: -> u:
after some times (2...7 min) drive "U:" vanishes from the WS...And need recconect and run copy again...

At this time on the server I do not see any messages on an error.

Please, help me.

This is info aboout my NLM:
TCPIP.NLM 6.82.02 30 Sep 2009
TCP.NLM 6.82.06 23 Dec 2009
WS2_32.NLM 6.24.01 14 Feb 2008
WSPIP.NLM* 6.24 4 Dec 2007
IOCTL.NLM 1.06.05 30 Sep 2008
ISCSIHAM.HAM* 1.06.05 30 Sep 2008
ISCSILIB.NLM 1.06.05 30 Sep 2008
ISCSINIT.NLM 1.06.05 5 Feb 2009
ISCSINRM.NLM* 1.06.05 14 Oct 2008
ISCSIXML.NLM* 1.06.05 30 Sep 2008
NSS.NLM 3.27.03 7 Jun 2010

Serg