Very Slow VDI Client Login Time

Hi,
My environment contains two Hyper-V Servers for DCs, Connection Broker, RD-Web, and two Hyper-V servers as virtualization host to thin clients. All Hyper-V servers are only 35% utilized and all client VMs don't have a performance issue.
After setting up the roles and creating the "Personalized Pools", I open the RD-Web, click on the collection and here it takes a very long time in securing connection part, then a warning message appears for the connection broker self-signed certificate,
I accept it and again a very long time to open the VM.
After searching the internet I figured out that I should install "PFX" certificates for the connection broker (SSO, Publisher). In my environment, we don't use a public certificate from trusted root CAs, however, we have our own "Enterprise
Root CA".
I then figured that I should create a certificate with the following attributes:
Advanced Key Usage: Server Authentication, Client Authentication
Key Usage: Data encipherment, Digital Signature, Key Agreement
I created the certificate and imported it to the RD CB, however, the "securing connection" part was even slower than before, so I duplicated the "Computer" certificate, and configured 1024 bit certificate instead of the old one "2048".
The "securing connection" part is taking half the time now, however it is still very long "+60 seconds" to open the VM.
I still suspect that it is a certificate issue and not sure if I have done the correct certificate.
Would anyone help in this case and providing the correct steps to install a certificate for the RD CB from internal CA.
Thanks.

Hi,
To avoid confusion, let's focus on the same thread.
http://social.technet.microsoft.com/Forums/en-US/17fb24d7-61a7-49be-83b3-35bd9d8b6863/very-slow-vdi-login-time?forum=winserverTS
Thanks.
Jeremy Wu
TechNet Community Support

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Very Slow VDI Login Time

Hi,
My environment contains two Hyper-V Servers for DCs, Connection Broker, RD-Web, and two Hyper-V servers as virtualization host to thin clients. All Hyper-V servers are only 35% utilized and all client VMs don't have a performance issue.
After setting up the roles and creating the "Personalized Pools", I open the RD-Web, click on the collection and here it takes a very long time in securing connection part, then a warning message appears for the connection broker self-signed certificate,
I accept it and again a very long time to open the VM.
After searching the internet I figured out that I should install "PFX" certificates for the connection broker (SSO, Publisher). In my environment, we don't use a public certificate from trusted root CAs, however, we have our own "Enterprise
Root CA".
I then figured that I should create a certificate with the following attributes:
Advanced Key Usage: Server Authentication, Client Authentication
Key Usage: Data encipherment, Digital Signature, Key Agreement
I created the certificate and imported it to the RD CB, however, the "securing connection" part was even slower than before, so I duplicated the "Computer" certificate, and configured 1024 bit certificate instead of the old one "2048".
The "securing connection" part is taking half the time now, however it is still very long "+60 seconds" to open the VM.
I still suspect that it is a certificate issue and not sure if I have done the correct certificate.
Would anyone help in this case and providing the correct steps to install a certificate for the RD CB from internal CA.
Thanks.

Hi,
Thank you for your posting in Windows Server Forum.
Did you receive any particular Error message for your case?
What’s the Server and client version in your environment?
If you are using windows 7 in VDI and have slow logon then please check below article.
Windows 7 Slow Boot / Slow Logon (Why I do what I do) ( Refer Point:
Are you doing VDI and having slow performance? Have you done any of these steps (at a minimum)?)
Apart from this, for installing certificate you can go through beneath article for detail.
Certificate Requirements for Windows 2008 R2 and Windows 2012 Remote Desktop Services
Hope it helps!
Thanks,
Dharmesh

Macbook Pro running Yosemite is running very slow. Takes long time to login and open applications. My Etrecheck report is listed below

Hardware Information:
MacBook Pro (13-inch, Mid 2012)
MacBook Pro - model: MacBookPro9,2
1 2.9 GHz Intel Core i7 CPU: 2 cores
8 GB RAM
Video Information:
Intel HD Graphics 4000 - VRAM: (null)
System Software:
OS X 10.10 (14A389) - Uptime: 0 days 0:12:48
Disk Information:
TOSHIBA MK7559GSXF disk0 : (750.16 GB)
EFI (disk0s1) <not mounted>: 209.7 MB
disk0s2 (disk0s2) <not mounted>: 749.3 GB
Recovery HD (disk0s3) <not mounted>: 650 MB
MATSHITADVD-R   UJ-8A8
USB Information:
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Apple Inc. FaceTime HD Camera (Built-in)
FireWire Information:
Thunderbolt Information:
Apple Inc. thunderbolt_bus
Kernel Extensions:
com.rim.driver.BlackBerryUSBDriverInt (0.0.74)
com.squirrels.driver.AirParrotSpeakers (1.7 - SDK 10.7)
com.squirrels.airparrot.framebuffer (3 - SDK 10.7)
com.avast.PacketForwarder (1.4 - SDK 10.9)
com.avast.AvastFileShield (2.1.0 - SDK 10.9)
Startup Items:
HWNetMgr: Path: /Library/StartupItems/HWNetMgr
HWPortDetect: Path: /Library/StartupItems/HWPortDetect
StartOuc: Path: /Library/StartupItems/StartOuc
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
[loaded] com.adobe.fpsaud.plist 3rd-Party support link
[loaded] com.avamar.avagent.plist 3rd-Party support link
[loaded] com.avast.init.plist 3rd-Party support link
[loaded] com.avast.uninstall.plist 3rd-Party support link
[loaded] com.avast.update.plist 3rd-Party support link
[loaded] com.google.keystone.daemon.plist 3rd-Party support link
[loaded] com.microsoft.office.licensing.helper.plist 3rd-Party support link
[loaded] com.oracle.java.Helper-Tool.plist 3rd-Party support link
[loaded] com.oracle.java.JavaUpdateHelper.plist 3rd-Party support link
[loaded] HWNetMgr.plist 3rd-Party support link
Launch Agents:
[loaded] com.avast.userinit.plist 3rd-Party support link
[loaded] com.google.keystone.agent.plist 3rd-Party support link
[loaded] com.hp.messagecenter.launcher.plist 3rd-Party support link
[loaded] com.oracle.java.Java-Updater.plist 3rd-Party support link
[loaded] HWPortCfg.plist 3rd-Party support link
[failed] ouc.plist 3rd-Party support link
User Launch Agents:
[loaded] com.adobe.ARM.[...].plist 3rd-Party support link
[failed] com.avast.home.userinit.plist 3rd-Party support link
User Login Items:
Quicksilver
Adium
Evernote
IBM Notes
Safari
Microsoft PowerPoint
Dropbox
AvamarClient
Internet Plug-ins:
Flip4Mac WMV Plugin: Version: 3.2.0.16   - SDK 10.8 3rd-Party support link
FlashPlayer-10.6: Version: 15.0.0.189 - SDK 10.6 3rd-Party support link
Default Browser: Version: 600 - SDK 10.10
AdobePDFViewerNPAPI: Version: 11.0.09 - SDK 10.6 3rd-Party support link
AdobePDFViewer: Version: 11.0.09 - SDK 10.6 3rd-Party support link
Flash Player: Version: 15.0.0.189 - SDK 10.6 3rd-Party support link
QuickTime Plugin: Version: 7.7.3
SharePointBrowserPlugin: Version: 14.4.5 - SDK 10.6 3rd-Party support link
Silverlight: Version: 5.1.10411.0 - SDK 10.6 3rd-Party support link
JavaAppletPlugin: Version: Java 7 Update 60 Cannot contact Oracle
Audio Plug-ins:
BluetoothAudioPlugIn: Version: 4.3.0 - SDK 10.10
AirPlay: Version: 2.0 - SDK 10.10
AppleAVBAudio: Version: 300.22 - SDK 10.10
iSightAudio: Version: 7.7.3 - SDK 10.10
User Internet Plug-ins:
WebEx64: Version: 1.0 - SDK 10.6 3rd-Party support link
3rd Party Preference Panes:
Flash Player 3rd-Party support link
Flip4Mac WMV 3rd-Party support link
Java 3rd-Party support link
Bad Fonts:
None
Old Applications:
/Users/tcs/Library/Application Support/WebEx Folder/1524
convertpdf: Version: 1.2 - SDK 10.6 3rd-Party support link
Cisco WebEx Meeting Center: Version: 1409.11.2909.0 - SDK 10.6 3rd-Party support link
asannotation2: Version: 1308.22.2900.0 - SDK 10.6 3rd-Party support link
atmsupload: Version: 1408.13.2909.0 - SDK 10.6 3rd-Party support link
Adobe Flash Player Install Manager: Version: 15.0.0.189 - SDK 10.6 3rd-Party support link
/Applications/Utilities/Adobe Flash Player Install Manager.app
/Users/tcs/Library/Application Support/WebEx Folder/1324
convertpdf: Version: 1.2 - SDK 10.5 3rd-Party support link
Cisco WebEx Meeting Center: Version: 1304.23.2811.0 - SDK 10.5 3rd-Party support link
asannotation2: Version: 1206.25.2804.0 - SDK 10.5 3rd-Party support link
atmsupload: Version: 1209.12.2806.0 - SDK 10.5 3rd-Party support link
Microsoft Language Register: Version: 14.4.5 - SDK 10.5 3rd-Party support link
/Applications/Microsoft Office 2011/Additional Tools/Microsoft Language Register/Microsoft Language Register.app
AdBlock: Version: 36.0.1985.143 - SDK 10.6 3rd-Party support link
/Users/tcs/Library/Application Support/Google/Chrome/Default/Web Applications/_crx_gighmmpiobklfepjocnamgkkbiglidom/Default gighmmpiobklfepjocnamgkkbiglidom.app
SLLauncher: Version: 1.0 - SDK 10.5 3rd-Party support link
/Library/Application Support/Microsoft/Silverlight/OutOfBrowser/SLLauncher.app
Google Chrome: Version: 38.0.2125.104 - SDK 10.6 3rd-Party support link
Install Cisco WebEx Add-On: Version: 1.0 - SDK 10.5 3rd-Party support link
Adobe Reader: Version: 11.0.09 - SDK 10.6 3rd-Party support link
HandBrake: Version: 0.9.8 x86_64 - SDK 10.6 3rd-Party support link
iFunBox: Version: 1.0.0777 - SDK 10.6 3rd-Party support link
/Applications/Microsoft Office 2011
Microsoft PowerPoint: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Excel: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Outlook: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Word: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Document Connection: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Google Voice Search Hotword (Beta): Version: 36.0.1985.125 - SDK 10.6 3rd-Party support link
/Users/tcs/Library/Application Support/Google/Chrome/Default/Web Applications/_crx_bepbmhgboaologfdajaanbcjmnhjmhfn/Default bepbmhgboaologfdajaanbcjmnhjmhfn.app
/Applications/Microsoft Office 2011/Office
Open XML for Excel: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Alerts Daemon: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Office365Service: Version: 14.4.5 - SDK 10.6 3rd-Party support link
SyncServicesAgent: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Database Daemon: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Graph: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Database Utility: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Office Reminders: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Upload Center: Version: 14.4.5 - SDK 10.5 3rd-Party support link
My Day: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Chart Converter: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Microsoft Clip Gallery: Version: 14.4.5 - SDK 10.5 3rd-Party support link
Evernote Web Clipper: Version: 36.0.1985.143 - SDK 10.6 3rd-Party support link
/Users/tcs/Library/Application Support/Google/Chrome/Default/Web Applications/_crx_pioclpoplcdbaefihamjohnefbikjilc/Default pioclpoplcdbaefihamjohnefbikjilc.app
Poppit!: Version: 36.0.1985.125 - SDK 10.6 3rd-Party support link
/Users/tcs/Library/Application Support/Google/Chrome/Default/Web Applications/_crx_mcbkbpnkkkipelfledbfocopglifcfmi/Default mcbkbpnkkkipelfledbfocopglifcfmi.app
/Users/tcs/Library/Application Support/WebEx Folder/1224
convertpdf: Version: 1.2 - SDK 10.5 3rd-Party support link
Cisco WebEx Meeting Center: Version: 1207.04.2732.10 - SDK 10.5 3rd-Party support link
asannotation2: Version: 8.25.31.0 - SDK 10.5 3rd-Party support link
atmsupload: Version: 4.14.29.0 - SDK 10.5 3rd-Party support link
Solver: Version: 1.0 - SDK 10.5 3rd-Party support link
/Applications/Microsoft Office 2011/Office/Add-Ins/Solver.app
Microsoft AutoUpdate: Version: 2.3.6 - SDK 10.4 3rd-Party support link
/Library/Application Support/Microsoft/MAU2.0/Microsoft AutoUpdate.app
FastestFox for Chrome: Version: 36.0.1985.125 - SDK 10.6 3rd-Party support link
/Users/tcs/Library/Application Support/Google/Chrome/Default/Web Applications/_crx_mmffncokckfccddfenhkhnllmlobdahm/Default mmffncokckfccddfenhkhnllmlobdahm.app
/Library/Application Support/Microsoft/MERP2.0
Microsoft Error Reporting: Version: 2.2.9 - SDK 10.4 3rd-Party support link
Microsoft Ship Asserts: Version: 1.1.4 - SDK 10.4 3rd-Party support link
Time Machine:
Skip System Files: NO
Mobile backups: OFF
Auto backup: YES
Time Machine not configured!
Top Processes by CPU:
      2% EtreCheck
      2% eclipse
      1% com.avast.daemon
      0% WindowServer
      0% configd
Top Processes by Memory:
319 MB eclipse
195 MB com.apple.WebKit.WebContent
123 MB com.avast.daemon
115 MB Evernote
98 MB Safari
Virtual Memory Information:
2.27 GB Free RAM
3.40 GB Active RAM
1.39 GB Inactive RAM
958 MB Wired RAM
2.59 GB Page-ins
0 B Page-outs

Step 1: uninstall Avast See how it is as that is a known culprit
Step 2: Chrome does not play well with OS X and is also sighted as a leading cause
Step 3: DropBox has been a processor or network hog though less so than the above two.
The Community you want(ed): MacBook Pro

Bridge very slow to open each time - CS6

I'm frustrated with how long Bridge takes to start up each time I launch the app. I have a very powerful machine (8-core, 3+ GHz, 24GB RAM, 500GB SSD, etc.); I have set the cache to save in each folder (I am told this should speed up the process, as only the cache associated with the folder I am opening must be read); I have set the 'number of files' option in the Cache slider to a high number (as I have the disk space), etc.
I appears that the app is rebuilding the cache every time I open!! A small black dialog is present on the left saying "Building..." - and it can take 5-6 minutes each time I start the program.. this is terrible performance! I have tried compacting and rebuilding the cache, etc.
What can be done??

hmmmm - you mean a piece of software doesn't always work as expected?? LOL
It seems to me you are a smart person
So I will turn off the "automatically export cache to folders when possible" option, change my cache location from D: drive back to C: drive (the SSD).
Thats what I would do, including to delete (or if you like purge central cache but I prefer the manual delete) the existing cache when it is getting to large. I usually dump it when it gets to 40 GB. You start again with a fresh and empty cache file, but cache on an SSD is building fast, so I usually do this in the evening and start building it again overnight using my main folder in the content window and menu view / show items from subfolders and let t run. On my former system with HDD this could take several hours but the SSD is much faster.
Should I leave the Prefs/Cache item "Keep 100% previews in cache" turned on? I would think so…
That depends on your needs, I don't use 100 % very often (have a 30" screen) and it is set to on. However this means every time you choose to see a 100 % preview it builds a large cache file and stores it in the folder 'full' If you deselect it this folder won't get filled so quickly but every time you visit this file again to look at 100 % it needs to build cache, choose your pick
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Your welcome

RAM PREVIEW VERY SLOW (FAR FROM REAL TIME) ON NEW MAC PRO

Good afternoon
I have the new mac pro with 8 cores, 64 Gb of Ram and dual AMD 700 graphic card, but the preview on After effects is slower than in the old mac pro (from 2010). I have set the preferences as told in your website and everything stills the same. Could you please advice? is very frustrating to see that a new machine works worse than the older one.
thanks

Attached below you can see some screenshots from the settings I have on AE CC

Safari very slow in L.A. Times blogs

Safari is painfully slow on the L.A. Times blogs. Firefox works well. Here is a link that took at least two minutes to load. http://latimesblogs.latimes.com/lanow/2009/05/judge-halts-teachers-strike.html
Any suggestions on how to speed Safari up for this blog? I do have the latest version of Safari 3.

The link loaded normally for me. Is this the only site you are having problems with? Safari can be fussy about DNS settings. Try using OpenDns. These settings will speed page loading, provide an extra layer of anti-phishing protection and content filtering.

[Mobile Acc.] VERY slow logout when login on network AND logout off network

Hello,
I'm installing a macmini server (10.6.6) and want to use mobile user account.
I thought everything was fine so I tried to login and logout with my macbook pro (Snow Leopard).
Unfortunately I detected a pb :
- When I login on network and logout on network everything is fine
- When I login off network and logout off network everything is fine
- When I login on network and try to logout off network, the login is fine but the logout needs about 20 minutes!
I found in the console that the macbook is waiting to re-connect the afp share points.
How can I avoid that?
Thanks in advance
Extracts from the console :
20/03/11 17:43:00 kernel AirPort: Link Down on en1. Reason 8 (Disassociated because station leaving).
20/03/11 17:43:01 configd[14] network configuration changed.
20/03/11 17:43:01 configd[14] setting hostname to "MacBook-Tom.local"
20/03/11 17:43:05 KernelEventAgent[404] tid 00000000 received event(s) VQ_NOTRESP (1)
20/03/11 17:43:05 KernelEventAgent[404] tid 00000000 type 'afpfs', mounted on '/Volumes/Users', from 'afp_4FLpM10E8KV40NIHSB2mlMQZ-1.2f00000f', not responding
20/03/11 17:43:05 KernelEventAgent[404] tid 00000000 type 'afpfs', mounted on '/Volumes/Groups', from 'afp_4FLpM10E8KV40NIHSB2mlMQZ-2.2f000010', not responding
20/03/11 17:43:05 KernelEventAgent[404] tid 00000000 found 2 filesystem(s) with problem(s)
20/03/11 17:43:05 kernel ASP_TCP Disconnect: triggering reconnect by bumping reconnTrigger from curr value 0 on so 0xbca3e58
20/03/11 17:43:05 kernel AFP_VFS afpfs_DoReconnect started /Volumes/Users prevTrigger 0 currTrigger 1
20/03/11 17:43:05 kernel AFP_VFS afpfs_DoReconnect: doing reconnect on /Volumes/Users
20/03/11 17:43:05 kernel AFP_VFS afpfs_DoReconnect: posting to KEA EINPROGRESS for /Volumes/Users
20/03/11 17:43:05 kernel AFP_VFS afpfs_DoReconnect: Max reconnect time: 600 secs, Connect timeout: 0 secs for /Volumes/Users
20/03/11 17:43:05 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Users
20/03/11 17:43:05 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Users failed 65.
20/03/11 17:43:05 kernel AFP_VFS afpfs_DoReconnect: sleep for 1 seconds and then try again
20/03/11 17:43:05 kernel AFP_VFS afpfs_DoReconnect started /Volumes/Groups prevTrigger 0 currTrigger 1
20/03/11 17:43:05 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:06 KernelEventAgent[404] tid 00000000 type 'afpfs', mounted on '/Volumes/Users', from 'afp_4FLpM10E8KV40NIHSB2mlMQZ-1.2f00000f', not responding
20/03/11 17:43:06 KernelEventAgent[404] tid 00000000 type 'afpfs', mounted on '/Volumes/Groups', from 'afp_4FLpM10E8KV40NIHSB2mlMQZ-2.2f000010', not responding
20/03/11 17:43:06 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Users
20/03/11 17:43:06 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Users failed 65.
20/03/11 17:43:06 kernel AFP_VFS afpfs_DoReconnect: sleep for 2 seconds and then try again
20/03/11 17:43:06 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:07 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:08 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Users
20/03/11 17:43:08 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Users failed 65.
20/03/11 17:43:08 kernel AFP_VFS afpfs_DoReconnect: sleep for 4 seconds and then try again
20/03/11 17:43:08 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:09 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:10 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:11 KernelEventAgent[404] tid 00000000 received event(s) VQ_NOTRESP (1)
20/03/11 17:43:11 KernelEventAgent[404] tid 00000000 type 'afpfs', mounted on '/Volumes/Users', from 'afp_4FLpM10E8KV40NIHSB2mlMQZ-1.2f00000f', not responding
20/03/11 17:43:11 KernelEventAgent[404] tid 00000000 type 'afpfs', mounted on '/Volumes/Groups', from 'afp_4FLpM10E8KV40NIHSB2mlMQZ-2.2f000010', not responding
20/03/11 17:43:11 KernelEventAgent[404] tid 00000000 found 2 filesystem(s) with problem(s)
20/03/11 17:43:11 [0x0-0xe20e2].com.skype.skype[2793] WirelessAttach: IOServiceOpen error: e00002c7
20/03/11 17:43:11 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:11 kernel AFP_VFS afpfs_DoReconnect: posting to KEA EINPROGRESS for /Volumes/Groups
20/03/11 17:43:12 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Users
20/03/11 17:43:12 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Users failed 65.
20/03/11 17:43:12 kernel AFP_VFS afpfs_DoReconnect: sleep for 8 seconds and then try again
20/03/11 17:43:12 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:13 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:14 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:15 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:16 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:17 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:18 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:19 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:20 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Users
20/03/11 17:43:20 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Users failed 65.
20/03/11 17:43:20 kernel AFP_VFS afpfs_DoReconnect: sleep for 10 seconds and then try again
20/03/11 17:43:20 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
20/03/11 17:43:21 kernel AFP_VFS afpfs_DoReconnect: reconnect already in progress for /Volumes/Groups, going back to wait
*...again and again and again...*
20/03/11 17:53:10 KernelEventAgent[404] tid 00000000 received event(s) VQ_DEAD (32)
20/03/11 17:53:10 KernelEventAgent[404] tid 00000000 type 'afpfs', mounted on '/Volumes/Users', from 'afp_4FLpM10E8KV40NIHSB2mlMQZ-1.2f00000f', dead
20/03/11 17:53:10 KernelEventAgent[404] tid 00000000 found 1 filesystem(s) with problem(s)
20/03/11 17:53:10 KernelEventAgent[404] tid 00000000 type 'afpfs', mounted on '/Volumes/Groups', from 'afp_4FLpM10E8KV40NIHSB2mlMQZ-2.2f000010', not responding
20/03/11 17:53:10 loginwindow[2705] AFP error -1 mapped to EIO
20/03/11 17:53:10 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Users
20/03/11 17:53:10 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Users failed 65.
20/03/11 17:53:10 kernel ]
20/03/11 17:53:10 kernel AFP_VFS afpfs_DoReconnect: posting to KEA to unmount /Volumes/Users
20/03/11 17:53:10 kernel ASP_TCP Disconnect: triggering reconnect by bumping reconnTrigger from curr value 1 on so 0xbca3e58
20/03/11 17:53:10 kernel AFP_VFS afpfs_DoReconnect started /Volumes/Users prevTrigger 1 currTrigger 2
20/03/11 17:53:10 kernel AFP_VFS afpfs_DoReconnect: already in unmount /Volumes/Users
20/03/11 17:53:10 kernel AFP_VFS afpfs_unmount: /Volumes/Users, flags 524288, pid 404
20/03/11 17:53:10 kernel AFP_VFS afpfs_DoReconnect: doing reconnect on /Volumes/Groups
20/03/11 17:53:10 kernel AFP_VFS afpfs_DoReconnect: Max reconnect time: 600 secs, Connect timeout: 0 secs for /Volumes/Groups
20/03/11 17:53:10 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Groups
20/03/11 17:53:10 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Groups failed 65.
20/03/11 17:53:10 kernel AFP_VFS afpfs_DoReconnect: sleep for 1 seconds and then try again
20/03/11 17:53:11 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Groups
20/03/11 17:53:11 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Groups failed 65.
20/03/11 17:53:11 kernel AFP_VFS afpfs_DoReconnect: sleep for 2 seconds and then try again
20/03/11 17:53:13 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Groups
20/03/11 17:53:13 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Groups failed 65.
20/03/11 17:53:13 kernel AFP_VFS afpfs_DoReconnect: sleep for 4 seconds and then try again
20/03/11 17:53:17 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Groups
20/03/11 17:53:17 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Groups failed 65.
20/03/11 17:53:17 kernel AFP_VFS afpfs_DoReconnect: sleep for 8 seconds and then try again
20/03/11 17:53:25 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Groups
20/03/11 17:53:25 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Groups failed 65.
20/03/11 17:53:25 kernel AFP_VFS afpfs_DoReconnect: sleep for 10 seconds and then try again
20/03/11 17:53:35 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Groups
20/03/11 17:53:35 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Groups failed 65.
20/03/11 17:53:35 kernel AFP_VFS afpfs_DoReconnect: sleep for 10 seconds and then try again
*...again and again and again...*
20/03/11 18:03:05 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Groups
20/03/11 18:03:05 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Groups failed 65.
20/03/11 18:03:05 kernel AFP_VFS afpfs_DoReconnect: sleep for 10 seconds and then try again
20/03/11 18:03:15 KernelEventAgent[404] tid 00000000 received event(s) VQ_DEAD (32)
20/03/11 18:03:15 KernelEventAgent[404] tid 00000000 type 'afpfs', mounted on '/Volumes/Groups', from 'afp_4FLpM10E8KV40NIHSB2mlMQZ-2.2f000010', dead
20/03/11 18:03:15 KernelEventAgent[404] tid 00000000 found 1 filesystem(s) with problem(s)
20/03/11 18:03:15 loginwindow[2705] AFP error -1 mapped to EIO
20/03/11 18:03:15 loginwindow[3291] AFP error -1 mapped to EIO
20/03/11 18:03:15 kernel AFP_VFS afpfs_DoReconnect: connect to the server /Volumes/Groups
20/03/11 18:03:15 kernel AFP_VFS afpfs_DoReconnect: connect on /Volumes/Groups failed 65.
20/03/11 18:03:15 kernel ]
20/03/11 18:03:15 kernel AFP_VFS afpfs_DoReconnect: posting to KEA to unmount /Volumes/Groups
20/03/11 18:03:15 kernel ASP_TCP Disconnect: triggering reconnect by bumping reconnTrigger from curr value 2 on so 0xbca3e58
20/03/11 18:03:15 kernel AFP_VFS afpfs_DoReconnect started /Volumes/Groups prevTrigger 2 currTrigger 3
20/03/11 18:03:15 kernel AFP_VFS afpfs_DoReconnect: already in unmount /Volumes/Groups
20/03/11 18:03:15 kernel AFP_VFS afpfs_unmount: /Volumes/Groups, flags 524288, pid 404
20/03/11 18:03:17 /System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow[3713] Login Window Application Started
20/03/11 18:03:17 com.apple.ReportCrash.Root[3706] 2011-03-20 18:03:17.458 ReportCrash[3706:2903] Saved crash report for loginwindow[3291] version ??? (???) to /Library/Logs/DiagnosticReports/loginwindow2011-03-20-180317localhost.crash

Thanks to try but I'm not in this case.
Note that the pb appears only on logout.

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