Is the SMB signing issue with XP PRO sp1 and SBS2k still an issue?
I thought I had the SMB issue fixed until this week. At a client's site, XP
Pro PCs with SP1 were working great with SBS2k.
Until yesterday, several users complained that copying file to the server
was now extremely slow.
I had an open issue with MS and had two patches they gave me, 825760,
826722, that resolved some of my Office 2000 issues with SBS2k/Win2k SP4.
And copies were fast and Word was crashing less often.
Now, the copying is slow again. I went searching, found KB 329170. But
825760 and 826722 have later file dates than 329170.
Yesterday, It would take 20 seconds to copy 200k. Not even a megabyte. But
only from XP Pro PCS. Win2k PCs were fine.
I tried the usual things prior to making the SMB change:
1)checked for spyware, none. Used adaware, Spybot, and Spysweeper
2)checked for viruses - none found. Definitions are the latest.
3)checked for any odd startup files using msconfig
4 )sp1 installed
5)all critical patches installed
6)server is virus free
7)server event viewer is clear of errors
8)hard coded the speed of the NIC but this did not make a difference,
Actually, when I hard coded the NICs at 100/full or 100/half, the copying
was worse
9)Verified in the advanced settings of my network were ok
10)DNS settings were correct in ipconfig /all.
I ended up doing the following. But why of all a sudden was this necessary?
The following resolved the problem, solution from Microsoft.
I did this first.
WORKAROUND
To work around this problem, use Group Policy settings to turn off SMB
signing. To do so, set the Default Domain Controller policy settings to
Disabled:
Click Start, point to Programs, point to Administrative Tools, and then
click Active Directory Users and Computers.
Right-click the Domain Controllers organizational unit, and then click
Properties.
Click the Group Policies tab.
Click Default Domain Controllers Policy, and then click Edit.
Go to the following location:
Computer Configuration\Windows Settings\Security Settings\Local
Policies\Security Options
If any of the following policy settings are set to Enabled, double click the
setting, click to select the Define this policy setting check box, click
Disabled, and then click OK.
NOTE: By default, only one setting is set to Enabled.
Digitally sign client communication (always)
Digitally sign client communication (when possible)
Digitally sign server communication (always)
Digitally sign server communication (when possible)
I looked at my LANMANSERVER and LANMANWORKSTATION registry settings and
enablesecuritysignature and requiresecuritysignature are both 0 for all.
Which they should be after making the SBS server change.
I did this second.
Also, in DNS, changed "allow secure updates only" to "allow dynamic
updates."
I restarted the server twice and all workstations once.
What happened?
The copies are now fast like they were before. I wonder if the last set of
critical updates made things worse?
Is the SMB Issue there with SBS2003?
Thanks, all.
John