Outlook 2010 Slow Network detection

Hi,
Does anyone know the criteria Outlook 2010 uses to decide if it's on a "slow network" in the context of using MAPI or HTTP the Exchange Proxy Setting?
I can find a couple of documents for Outlook 2003 using the reported network adapter speed, and if it's < 1Mbps considering it slow. But I cannot find any documentation for Outlook 2010.
http://www.howto-outlook.com/howto/outlookanywherefastslow.htm#registry
I have done some testing and Outlook 2010 doesn't seem to use the same criteria.... I'm seeing "Slow Network" settings used when the network adapter is reporting a > 1Mbps link speed.
Thanks,
Peter

Hi,
Based on my knowledge it is a slow network when it's 1Mbps or slower. I haven't found the document for Outlook 2010, but even for the latest Outlook 2013, it is still 1Mbps (128 KB):
http://technet.microsoft.com/en-us/library/cc179067.aspx#section4
We can find the information from the "Managing Outlook behavior for perceived slow connections" section in the article above.
Anyway, we can try to modify this limit by creating the slowbitrate registry key:
Important
This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the
registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry,
http://windows.microsoft.com/en-US/windows7/Back-up-the-registry
Key: HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\rpc
Value name: slowbitrate
Value type: REG_DWORD
The value to enter is the minimal bitrate required to consider a network being fast. Anything below this bitrate would be considered slow.
Example: 128KB = 1Mbit = 1024 bit
I hope the information is helpful.
Regards,
Melon Chen
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.

Similar Messages

Outlook 2010 slow on Office 365

We have a network with a mix of Outlook 2007, 2010 and 2013 clients. These were all recently moved from SBS Exchange 2007 to Office 365.
Some but not all Outlook 2010 clients are experiencing slow performance. Sending a mail can take up to one minute. With attachments, the sends can take several minutes. Clicking on a folder can result in Outlook becoming unresponsive
for minutes. This affects users with large and small OST files.
Outlook 2007 and 2013 users don't seem to be affected. We have tried creating new profiles and applying MS Updates with no success

Try to collect the process monitor log when this issue occur.
Additionally, some users found that this issue disappeared if they turn off their security programs, you may also have a try.
Flynn

Outlook 2010 Slow Access to Shared Calendar

We have a small 100 user domain running Exchange server 2010 and outlook 2010 clients. When an admin
opens a shared calender from within Outlook 2010 it often takes 30 seconds or more to display the calender.. When using OWA the calendar display almost instantly so it's not a server issue. We have a gigabit network and NO heavy mail or network users
so it appears to be an Outlook client issue.
I have done some research and it appears this was not a problem with prior versions of Outlook client as many other reported this issue after upgrading from prior versions of Exchange-Outlook.
Anyone seen this issue and know if MS fixed it?

Hi,
Does this issue happen to all shared calendars? If this issue only happen to a certain shared calendar, we may try to delete some unwanted items in the shared calendar and then try opening it again to see the result.
In addition, are you using Outlook with Cached Exchange mode enabled? Do you have the "Download Shared Folders" options enabled? If not, please enable the option and then test the issue again. To enable the option, please go to File > Account
Settings > Account Settings, double click your Exchange account to open the Change Account wizard. Then, click More Settings, switch to Advanced tab and make sure the "Download Shared Folders" option is enabled.
Please let me know the result.
Regards,
Steve Fan
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.

HT204150 Does iCloud make my Outlook 2010 slow?

Afer I fix iCloud to my PC, my Outlook get slow down. Once I open Outlook, it freeze for a while before I can send or receivee mail.Why?How can I fix it?
My PC current with Win7, the Outlook 2010 is one component of Office 2010 Stardard.
During my my Outlook 2010 freezing, it seemd to upload or synchro something. I am wondering why your iCloud alwalse need to synchro something everytime while openning the Outlook 2010.

I've been researching something similar.
In essence there is no "sync" at all. Outlook is configured to show its own default calendar, a representation of the iCloud calendar and an initial merge conflicts calendar.
If you put an entry into the Green calendar from Outlook you are changing the iCloud calendar in the cloud and the changes are propagated to iOS devices etc etc linked to the same iCloud account.
The blue (local outlook) calendar only shows up 'cos it's checked in My Calendars to the left.
Nothing you do in iCloud affects the Outlook default blue calendar, but changes made to the iCloud green calendar via Outlook work as you would expect.
So think of "parallel display of Outlook and Cloud calendar" rather than "synchronisation"

Outlook 2010 slow after itunes update

when i uipdated my itunes today the opening of Outlook 2010 now takes a couple minutes instead of a couple seconds. i tried restoring to a backup point and redoing with the same result?? suggestions? (windows 7 home)

You're welcome!

Outlook 2010 slow(4-5 minutes) to update folders on first open every morning

Recently migrated to Exchange 2013 and now Outlook 2010 clients, when first opened in the morning will not update folders for 4-5 minutes. If, after opening Outlook you close it and then open it again, the folders up and all is fine until they close
outlook at the end of the day. The next morning, same problem. Anyone see this before?We deployed Exchange 2013 CU3, then last week updated to SP1. I'm not sure that this issue existed before SP1.Another issue is if you
go into account settings and select more setting, you receive a pop up window stating "The action cannot be completed" and if you select OK, then everything is fine and you can see all the settings.
Just wondering if anyone else has seen this.
Thanks

Yes. Same issue with Outlook 2013 as well. I found the problem to be public folders.
They were not used on Exchange 2007, so once all the mailboxes were migrated to Exchange 2013, I removed Exchange 2007 and then shutdown the old server. The problem was that the Exchange 2013 databases were set to look at the Exchange 2007 Public folder
Store which now does not exist.
I had to remove it with ADSIEdit
CN=Services -> CN=Microsoft Exchange -> CN=(your organization name) -> CN=Administrative Groups -> CN=Exchange Administrative Group (FYDIBOHF23SPDLT) -> CN=Databases.
Right-click the mailbox database you want to remove the default public folder database from and choose
Properties
Scroll down until you find the msExchHomePublicMDB attribute. Highlight it and then click
Edit
Click the Clear button so that the value changes to “not set”.
Hope this will save someone some time in the future.

EMET Stack Pivot in Outlook 2010 on Windows 7

This error happens w/ AT&T Conferencing Addin for Outlook 2010.
EMET detected StackPivot mitigation and will close the application: OUTLOOK.EXE
StackPivot check failed:
Application : C:\Program Files\Microsoft Office\Office14\OUTLOOK.EXE
User Name : SCI\jjleleux
Session ID : 1
PID : 0x17F8 (6136)
TID : 0x1408 (5128)
API name : kernel32.CreateFileW
ReturnAddress : 0x6774DAC7
CalledAddress : 0x76CDE955
Thread stack area range: [0x1D6FA000..0x1D700000]
StackPtr : 0x1D6F9FAC
The only way to get Outlook to run is to disable StackPivot for Outlook.exe or disable the addin. Please add support for this addin..

Hi,
Firstly, let’s refer to the following article to check the settings of POP3 account:
http://www.emailquestions.com/microsoft-outlook/8548-fix-pop3-imap-settings-yahoo-mail-yahoo-requires-ssl.html
“The current setting (December 2013) is port 587 + TLS (Authentication required).”
Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make
sure that you completely understand the risk before retrieving any suggestions from the above link.
Additionally, you can contact with Yahoo support to confirm it.
Best regards,
Angela Shi
TechNet Community Support

Outlook 2010 performance much slower than 2007 and 2003 when used with POP3 mail provider over slow network connection

When received messages include embedded pictures, Outlook 2010 does not persist those pictures in the .pst file with the message text. Instead, it redownloads the pictures every time the message is rendered for viewing or printing.
Send/Receive to replicate a message with multiple embedded pictures from POP3 mail server (not Exchange server)
Select and view the message - notice all the x placeholders for the embedded pictures
Right-click any x placeholder and select to "download pictures"
After some delay, the pictures are rendered, replacing the placeholders, to form the complete message
Now, select "File" and "Print" -- notice that the preview is not immediately displayed. There is a delay while thos same embedded pictures are downloaded, again. Sometimes there will be a pop-up notification that Outlook is "communicating with
the server"
Eventually the message is fully rendered with all embedded pictures
Now, select a different printer -- notice that the preview disappears and it takes time to .... yes, redownload those same pictures, again.
Finally, click on "Print" -- notice yet another delay for a final download to rerender the message for the printer.
Having done all that, close Outlook, disconnect from the network (turn off wireless or disconnect wire), open Outlook and view that same message. The x placeholders are shown instead of the embedded pictures. Although those embedded pictures
were downloaded multiple times already, they were not persisted locally.
Outlook 2003 and 2007 correct ask for confirmation to save the pictures locally then does so. Printing and viewing is then possible without having to redownload those pictures.
Is there going to be a fix for this Outlook 2010 defect? I've been waiting, applying updates, and waiting.....

Please do not close this thread. The issue remains. I apologize for not checking back sooner. I thought I would get pinged by email when this tread was updated; I did not. I'll monitor more closely in the future.
First, please note that I explicitly set Outlook to NOT download pictures automatically. I want to be prompted to download. However, after confirmed that I want the download, I expect pictures related to the message to be downloaded only once,
immediately after I confirm that I want them downloaded.
I have confirmed many times that the behavior in this area is NOT identical between 2003, 2007 and 2010. In particular, 2007 does download once and store locally (if user confirms to save changes when prompted), as expected, and 2010 downloads each
view/preview/print.
This is quite easy to verify -- simply unplug any network cable, disable wireless, etc. In other words completely detach from the networked world. 2007 will correctly view/preview/etc. from local storage whereas 2010 always reverts to showing
placeholders for any embedded images. This is 100% repeatable.
As an additional verification, simply move the .pst file to another system that is not connected to any network. Open the .pst file with 2007 and any embedded images that were already downloaded (and saved) are there, with 2010 they are not.
With 2010, it is bad enough that embedded images are not saved for viewing when disconnected. Worse than that, the repeated downloads can be a significant disruption to performance. Just get on a really slow wireless connection as is typical
in some hotels. Then try to view and print messages with lots of embedded pictures. Slow takes on a whole new, even slower, meaning.
This 2010 defect has been reproduced. Is there a KB article, Windows Update, hotfix,.... anything available to eliminate this problem of repeated downloads of embedded pictures?

Slow Outlook 2010 Search functionality

Scenario: 20+ RDS 2012, remote application users. Spanning 3 remote locations connected via cloud based firewall for MPLS vpn. Remote users are reporting very slow outlook 2010 search, resulting in freezing and crashing via remote app. Some users have
very large mailboxes some do not. Is there a best practice for outlook via remote app for caching?
How could I increase the search function speed for the remote users?
~SH

Hi,
Initially please check the network speed for your environment?
Have you face this issue before?
Might possible sometime that through VPN tunnel wasnt encapsulating all traffic and thus can face slowness issue and wasn’t passing HTTPS, Outlook, Active Directory and DNS traffic (all of which are encrypted). In addition, you can go through
this article which provide some more insight points for outlook troubleshooting.
- Check for pst-file corruptions
- Disable and then re-enable the file for indexing
- Reset the index
- Reinstall the Windows Search feature
- Check event-viewer for any useful Event ID\error
Hope it helps!
Thanks.
Dharmesh Solanki
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]

Very slow calendar sync with Outlook 2010 users.

Hi guys.
My company is running Office 365 with hosted Exchange. Most clients are using Outlook 2010 and are reporting that when trying to access shared calendars, all operations are incredibly slow and can take up to a few minutes to show any calendar items. I'm one
of the only users on Outlook 2013 and the Outlook 2013 users don't seem to experience as much of an issue, but it is still there. Is there a way I can look into this to fix it?
Having the calendar shared all over again doesn't seem to fix. It's been suggested that I should run the O365 setup from OWA again - is there any ground to this?
Thanks for your help.

Hi,
Please follow the troubleshooting steps below on this issue:
1. Disable the firewall and anti-virus program to test again.
2. We may suspect there’s a 3rd-party add-ins that may be the possible reason, let's run Outlook in Safe Mode, to determine if it is 3rd-party add-ins related.
Press Win + R and type “outlook.exe /safe” in the blank box, then press Enter.
If there’s no problem in Safe Mode, disable the suspicious add-ins to verify which add-ins caused this issue.
3. Go to File tab -> Account Settings ->
Account Settings -> Double clicking on the account name ->
More Settings -> Advanced tab ->
Download shared folders, tick or untick the checkbox to check the result.
4. If the steps above don't help, simply create a new profile to setup the account:
http://support.microsoft.com/kb/829918/en-us
Regards,
Melon Chen
TechNet Community Support

File, Send link doesn't open a new email. Using Firefox 11.0. Outlook 2010 is the Mailto default and W7 default email program. On the About:config page network.protocol-handler.external.mailto is set to regular font (not bold) "default Boolean true".

File, Send link doesn’t open a new email. Running Firefox 11.0. Outlook 2010 is the Mailto default and the W7 default email program. On the About:config page, network.protocol-handler.external.mailto is set to regular font (not bold) “default Boolean true”.

I assume you have tried toggling the setting in Firefox between Outlook and, say, Gmail:
orange Firefox button ''or'' classic Tools menu > Options > Applications
In the search box, type or paste '''mailto''' and pause for the list to filter.
Change the setting and OK to save it, then return to the dialog, change back, and OK again.
You also might want to toggle the setting at the OS level between Microsoft Outlook and the native Windows Mail client in a similar fashion. In Windows XP you could use IE's Options dialog, Programs tab, for this, but I'm not sure in Windows 7.
Since one possibility is a problem in your Firefox settings (including the possibility of interfering add-ons), and another is a problem at the Windows level (e.g., Registry settings), it would be useful to try to identify which one it is. One quick way to distinguish is to create a new Firefox profile. It will start up with all factory settings. You can switch back to your existing profile after testing.
First, I recommend backing up your Firefox settings in case something goes wrong. See [https://support.mozilla.com/en-US/kb/Backing+up+your+information Backing up your information]. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.)
After closing Firefox, start up again in the Profile Manager as described in this article: [http://support.mozilla.com/kb/Managing+profiles Managing profiles].
With the new profile, can Firefox successfully create a message in Outlook?

Outlook 2010 (+ Exchange 2013) works extremely slow

We have a user that works with Outlook 2010 (on a RDS Server) that is connected with cache to Exchange 2013. The response of Outlook is extremely slow and we think because this user has a 15Gb mailbox. However, he refuses to delete any mail for various
reasons. Is there any way to speed up Outlook? The rest of the system works fine, it's just the email.

Hi,
By "connected with cache to Exchange 2013", do you mean the user is using Cached Exchange mode? If not, please help the user switch to Cached Exchange mode to check the result. If the user has any shared folders, also cache those folders to check if it helps.
If we try to start Outlook in safe mode, will this issue persists? To open Outlook in safe mode, press Windows key + R to open the Run box, type
outlook.exe /safe and press Enter. If performance improves, check again to make sure that you disabled any Outlook add-ins that may affect performance.
In addition, please click File tab > Info > section Mailbox Cleanup and check your Exchange Quota information. We can also try to close Outlook,
rename the OST file, and then reopen Outlook to re-create the OST file.
For more troubleshooting steps about slow Outlook performance issue, please refer:
http://support.microsoft.com/kb/2441551/en-us
Hope this helps.
Best Regards,
Steve Fan
TechNet Community Support

Slow connection between outlook 2010 and Windows 2012 R2 DC

I'm having issue that affects all site users, our setup is:
1 x Exchange 2007
2 x Domain contollers, on 2008 R2 and one 2012 R2
Outlook 2010;
We have been experiencing issue's with users when they have a connection to the 2012 DC via outlook, were when they send an email it takes approx. 20 seconds for the email to be sent to the outbox. What will happen is an 'hour-glass' will appear and a bubble
appears from the outlook icon in the system tray stating that outlook is trying to establish a connection to the 2012 DC.
The users that are connected to the 2008 DC do not have this issue and the same email gets sent straight away.
We have now put in an exclusion on exchange to prevent outlook clients from connecting to the 2012 server, which has temporary resolved this issue.
as soon as we lift the exclusion the issue reappears.
I've performed PerfMon and NetMon captures of both DC's while this issue occurs but without obvious conclusion.
Has anyone come across this or able to provide with some suggestions.
thanks.
John.

Hi John,
Did you refer to Milos's suggestion and use the network monitor? Any update?
Would you please let me know whether install any third-party application (such as: some security applications) on the server 2012 r2? In addition, please type outlook.exe /safe in RUN to start Outlook in Safe Mode, then check if this issue still exists.
This will help us to confirm if the issue is caused by Outlook add-ins.
If any update, please feel free to let us know.
Best regards,
Justin Gu
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]

Microsoft Outlook 2010 very slow start up

Hello there,
Whenever I log on to my Computer and open my Outlook - it takes forever to start up, it's always slow on the 'Loading profile' part. Takes about 10 mins sometimes. However this only happens when I first switch on my Computer - if I close down outlook
and open it again then it loads fine, however if I were to shut down my computer and open it again - then the slow load up process would happen all over again. We currently use Microsoft exchange for our emails. And my outlook has two profiles but only uses
one of them. Should I perhaps delete both profiles and create a new one? I've disabled plugins but that doesn't seem to be the problem. Any ideas?
Many thanks,
Michael Peters

Hi Michael,
Please run Outlook under the safe mode to avoid some AVs and add-ins for testing.
If it works under the safe mode, it seems some AVs or add-ins lead this issue. Please disable them properly.
Please re-create profile to refresh the caches for testing.
Also found some similar thread for your reference:
Outlook 2010 is taking forever to open and load,
http://answers.microsoft.com/en-us/office/forum/office_2010-outlook/outlook-2010-is-taking-forever-to-open-and-load/c4efcd45-ed61-4a97-9178-b1f1c02ca1e2
Outlook 2010 stuck on loading profile
http://answers.microsoft.com/en-us/office/forum/office_2010-outlook/outlook-2010-stuck-on-loading-profile/4ae77263-3173-4ac7-9758-e4483b16a45a
Hope it is helpful
Thanks
Mavis
Mavis Huang
TechNet Community Support

Outlook 2010 - Opening attachments are very slow

Recently we have migrated windows XP, Office 2007 to Windows 7 Enterprise edition with Office 2010.
After migration found opening outlook 2010 attachements are very slow.
First time when we click the attachments the orange bar is running for a while in outlook then only the appropriate program getting opened.
Approx. it takes 25sec to open any attachments (word, excel, pdf ...even txt files)
Second time if we open same attachment then able to open immediately, if we leave the outlook for a while then we try to open the same attachement then again it takes 25sec to open.
At the moment when we click the attachment the file getting saved immediately to the outlook temp directory.
It look like only opening appropriate program getting delay for some reason.
I tried to disable all the Add-ins, but still same problem.
Can some one please help?
Parani Dhasarathan.

Hi,
I am Chetan Savade from Symantec Technical Support Team.
Are you using SEP 12.1 RU3 (12.1.3001.165) Prior version? If yes, it's a known issue please upgrade to the latest version of SEP. SEP release details are available here:
http://bit.ly/m0vOJp
Here are more details about known issu:
Attachments in Outlook 2010 take longer to open with Symantec Endpoint Protection installed
Fix ID: 3086057
Symptom: Attachments in Outlook 2010 are slower to open with Symantec Endpoint Protection 12.1 installed and the Outlook Auto-Protect feature enabled. Attachments in Outlook 2007 are not affected.
Solution: Optimized the Outlook Auto-Protect plug-in to avoid processing successive callbacks
Reference: New fixes and features in Symantec Endpoint Protection 12.1.3
http://www.symantec.com/docs/TECH206828
Best Regards,
Chetan

Outlook 2010 Slow Network detection

Similar Messages

Maybe you are looking for