Ecp 400 Error
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/owa/auth.owa Bad Request
> cmd > net use * /DELETE all commands came visible and i could make changes i want. Thanks all! Marked as answer by mrPsycho Thursday, June 13, 2013 8:54 AM Thursday, June 13, 2013 8:54 AM Reply | Quote All replies 1 Sign in to vote Is theaccount that you are using mail enabled on a previous version of Exchange? It looks likeit is re-directing to a previous version of Exchange which does not have ECP. There are 2 resolutions for this 1. Disconnect the mailbox from theaccount 2. Move the mailbox to Exchange 2013 Proposed as answer by Kevin Rowlands Friday, June 07, 2013 10:00 AM Unproposed as answer by mrPsycho Monday, June 10, 2013 8:31 AM Friday, June 07, 2013 9:57 AM Reply | Quote 0 Sign in to vote i aleady did step 2. all my accounts under 2013. also i've tried to run Remove-EcpVirtualDirectory to create it again - but no luck. i have this: [PS] C:\Windows\system32>Remove-EcpVirtualDirectory Remove-EcpVirtualDirectory : The term 'Remove-EcpVirtualDirectory' is not recognized as th
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Exchange 2013 Delivery Report 400 Outlook Web App Options
Fatal error: Uncaught Error: Call to undefined function xml_parser_create()4oo4 on PHP Fatal 400 outlook web app options exchange 2016 error: Uncaught Error: Call to undefined function xml_parser_create()Richard on Storage Spaces and Parity - Slow write speedsden on owa bad request after login Installing Disk Cleanup (cleanmgr.exe) Server 2008 and Server 2012bviktor on Storage Spaces and Parity - Slow write speedsArchives September 2016 August 2016 June 2016 April 2016 January 2016 December 2015 https://social.technet.microsoft.com/Forums/exchange/en-US/908220c2-2a6f-473d-bf6b-23c4d42b0981/exchange-2013-ecp-error-400-bad-request?forum=exchangesvradmin November 2015 September 2015 July 2015 June 2015 March 2015 November 2014 October 2014 August 2014 July 2014 April 2014 January 2014 September 2013 August 2013 July 2013 May 2013 April 2013 March 2013 February 2013 June 2012 April 2012 March 2012 November 2011 June 2011 May 2011 April 2010 March 2010 September 2009 April 2009 March 2009 February 2009 Categories http://www.tecfused.com/2013/09/exchange-2013-ecp-double-login-error-400/ Backup Cisco copyright Exchange Fixes Games Google IBM IIS ISA/TMG Layer3 Lenovo Licensing Microsoft Networking News Office Outlook Programming Recovery Reviews SBS Security Server Sharepoint Sophos Storage Tips Uncategorized Veeam Virtualization VMWare Windows Wordpress Meta Log in Entries RSS Comments RSS WordPress.org Exchange 2013: ECP double login, error 400 After an upgrade of Exchange 2013 from CU1 to CU2 we could no longer access the ECP part of Exchange. OWA worked fine. We got a blank screen with bad request, error 400. After a lot of searching, it looks like the upgrade for Exchange wipes out the web.config file which has all the settings for authentication on ECP. See the following: Be aware that this is incorrect after an upgrade. Set the authentication of basic to true again to ensure the setting is correct (note form based authentication is turned off because we use TMG). Also make sure your internal and external url for the ECP directory is reset, as this is also wiped. This is a known bug. See KB2871485. Share this:Click to share on Twitter (Opens in new wind
over the past months & most recently this past week with a customer. Luckily there's a fairly simple fix to the issue published by Microsoft, but realizing not everyone remembers every https://exchangemaster.wordpress.com/tag/http-400-bad-request/ Microsoft KB that gets released I thought I'd shine a spotlight on this one. Scenario As part of the migration process, when customers move their namespace from either Exchange 2007 or 2010 to 2013, http://msexchangeguru.com/2013/10/30/http-redirect-owa-ecp/ HTTP connections start proxying through 2013 to the legacy Exchange Servers and some users will experience failures. The potential affected workloads are: AutoDiscover Exchange Web Services (Free/Busy) ActiveSync OWA Outlook Test or new mailboxes exchange 2013 may not be affected. Resolution The cause of this is the age old problem of Token Bloat. Users being members of too many groups or having large tokens. The fix is to implement the changes in the below Microsoft KB article "HTTP 400 Bad Request" error when proxying HTTP requests from Exchange Server 2013 to a previous version of Exchange Server https://support.microsoft.com/en-us/kb/2988444 The interesting thing in 400 outlook web this scenario is that the issue was not experienced in the legacy version of Exchange & even if you look at the tokens themselves, they may not seem overly large. It seems that the process of proxying Exchange traffic is much more sensitive to this issue. Also, in a recent case that went to Microsoft, even if you increase the recommended values to a value higher than your current headers it may not have the desired effect. In our case we had to set the MaxRequestBytes & MaxFieldLength values to exactly match the values in the Microsoft KB (65536 (Decimal)). For further reading, please see the below articles. Complimentary Articles "HTTP 400 - Bad Request (Request Header too long)" error in Internet Information Services (IIS) https://support.microsoft.com/en-us/kb/2020943 How to use Group Policy to add the MaxTokenSize registry entry to multiple computers https://support.microsoft.com/en-us/kb/938118 Additional Note As an FYI, another issue I commonly see when namespaces get transitioned to 2013 is authentication popups when connections proxy to the legacy Exchange Servers. Please see the below KB for that issue Outlook Anywhere users prompted for credentials when they try to connect to Exchange Server 2013 https://support.microsoft.com/en-us/kb/2990117 I also blogged about it here https://exchangemaster.wordpress.com/2014/10/
troubleshooting notes » Exchange 2013: HTTP redirection issues with ECP virtual directory - /owa/ecp When you try to access ECP on Exchange 2013, browser redirects to /owa/ecp and shows "Bad Request" You will see this if HTTP redirection is applied on Default website and those settings got replicated to all Virtual directories underneath. Let's look at How to enable HTTP redirect on Exchange 2013. To enable HTTP to HTTPS redirection on exchange 2013, on IIS VDir highlight Default website and click HTTP Redirect: Change the settings as shown: The issue addressed in this article will happen if the ECP Vdir has an HTTP redirect set on it: Let's recap the SSL Settings and HTTP redirect settings for all Virtual directories in Exchange 2013 and ensure it is set properly: Vitual Directory SSL enabled HTTP Redirect Default website NO Yes aspnet_client Yes NO Autodiscover Yes NO ecp Yes NO EWS Yes NO owa Yes NO Microsoft-Server-ActiveSync Yes NO OAB Yes NO PowerShell NO NO Rpc Yes NO Ratish Nair Microsoft MVP | Exchange Server Team @MSExchangeGuru Keywords: Exchange server 2013 owa redirection issue, exchange 2013 ECP redirects to /owa/ecp Posted October 30th, 2013 under CAS, Exchange 2013. RSS 2.0 feed. Leave a response, or trackback. 15 Responses to "Exchange 2013: HTTP redirection issues with ECP virtual directory - /owa/ecp" Mali stane Says: March 2nd, 2014 at 4:53 pm Exchange 2013 Sp1 Coexistence with Exchange 2010 SP3 CU5 HTTP 500 I`m trying to make working OWA coexistence between Exchange 2013 SP1 and Exchange 2010 SP3 CU5. When user login in to OWA where his mailbox is located on Exchange 2013 server it logon successful and owa opened. When i try to login to the same url with user whose mailbox is located on Exchange 2010 server i get Error http 50 The website cannot display the page : HTTP 500 »https://URLEXCHANGE2013/owa/auth.owa« The same is, when i use https:// URLEXCHANGE2013/ecp?ExchClientVer=14 URL on Exchange 2013 are different as fro Exchange 2010. I even tried to setup Internal URL for Exchange 2010 to bi set to »null ,Saem error Exchange server 2013 Sp1 is installed on Windows server 2012 R2. Prabhat Nigam Says: March 11th, 2014 at 3:35 pm 2013 and 2010 urls should be same and both should be in the same AD forest. you can also keep same internal url. With SP1 we have fixed all redirection issue. Let us know how does it go. Pedro Branco Says: July 20th, 2014 at 10:54 am W