Very slow (20 minutes) log on. Plse help.

Question

Hi,
For months, we are having slow logon-issues on our network. I have googled a lot but have not found the answer yet.
I have already gathered quite some data, so I hope it will be easy for you experts to pinpoint the cause.
- (Virtualized) SBS 2008 SP2 server, windows 7 clients.
- Some users are having slow logon issues. Not all users though. Slow logon does also not happen all the time for the affected users.
- Description of slow logon :
     1. Event ID 6006 : Logon took 1021 seconds
     2. Event ID 1058 : Windows cannot access the file gpt.ini ...
     3. Important : NetBIOS TCP/IP Helper is not running, although is is set as automatic startup. We then start it manually and the network drives are back available.
The issues started when I enabled RRAS on our SBS 2008. Because I know that enabling RRAS could cause DNS-issues, I've edited : DNS-snap-in > Server > Properties > Interfaces > only IP-address of server is ticked (10.0.0.20). Not RRAS-IP (10.0.0.78).
I can't figure out why only on some client and only occassionally (but many times a week), this issue happens.
This is a IPCONFIG/ALL of our server :
Windows IP Configuration
   Host Name . . . . . . . . . . . . : DOMAINSERVER
   Primary Dns Suffix  . . . . . . . : ninix.local
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : Yes
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : ninix.local
Ethernet adapter Local Area Connection 3:
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection
   Physical Address. . . . . . . . . : 00-0C-29-BB-0D-DB
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::6530:8ca7:82be:7bd7%10(Preferred)
   Link-local IPv6 Address . . . . . : fe80::e75c:62cb:b095:c9fe%10(Preferred)
   IPv4 Address. . . . . . . . . . . : 10.0.0.20(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 10.0.0.3
   DHCPv6 IAID . . . . . . . . . . . : 285215785
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-0D-8D-3E-1C-C1-DE-E9-E6-C2
   DNS Servers . . . . . . . . . . . : fe80::e75c:62cb:b095:c9fe%10
                                       10.0.0.20
   NetBIOS over Tcpip. . . . . . . . : Enabled
PPP adapter RAS (Dial In) Interface:
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : RAS (Dial In) Interface
   Physical Address. . . . . . . . . :
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 10.0.0.78(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.255
   Default Gateway . . . . . . . . . :
   NetBIOS over Tcpip. . . . . . . . : Disabled
Tunnel adapter Local Area Connection* 8:
   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : isatap.{F4869352-F4B1-4554-ADE6-41D7C3797
589}
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
Tunnel adapter Local Area Connection* 9:
   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
Thx,
Thomas.

Answer 1

Hi Thomas,
Based on those events, there seems that some issues occurred when access group policy file. Please
check SYSVOL permission settings. Meanwhile, please refer to following articles and check if can help you.
Windows cannot
access the file gpt.ini for GPO CN={31B2F340-016D-11D2-945F-00C04FB984F9}
Windows cannot access the file
gpt.ini for GPO
Event ID 1058 — Group Policy Preprocessing
(Networking)
Back to slow logon issue, please run
SBS BPA and check if find some relevant issues. Meanwhile, please refer to following article and troubleshoot.
The Case of the Slow Logons
à
The issues started when I enabled RRAS on our SBS 2008.
By the way, SBS 2008 is designed to be installed with a single network adapter. As you said, enabling RRAS
on SBS 2008 will cause problems.
Hope this helps.
Best regards,
Justin Gu