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stephan_vanheld's avatar
stephan_vanheld
Level 5
7 years ago

Web App fails with "Initialization failed" after installing CU 8 for Exchange 2016

We recently insatlled CU 8 for our Exchange 2016. Since then, browser displays "Initialization failed" then clicking the Enterprise Vault shortcut in Outlook on the Web.

Browser console shows:

MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:37.654: Office.initialize() - diagnostics host name - OutlookWebApp
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:37.655: Office.initialize() - navigator user agent - Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:37.656: Office.initialize() - navigator app name - Netscape
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:37.656: startSlowLoadTimer()
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:37.657: Determining EV language support for en-US
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:37.657: Page reload needed
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:37.657: getSettings()
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:37.658: getItemId()
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:37.658: EWSFindAssociatedItem.addRestriction()
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:37.658: EWSFindAssociatedItem.invoke()
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:37.658: EWSRest_EVSettings.getSoapTag()
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:37.658: EWSRest_DistinguishedFolderId.getSoapTag()
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:37.658: Making EWS call to find item with restriction : <t:IsEqualTo><t:FieldURI FieldURI="item:ItemClass" /><t:FieldURIOrConstant><t:Constant Value="IPM.Note.EnterpriseVault.Settings" /></t:FieldURIOrConstant></t:IsEqualTo>
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:38.407: onSlowLoadTimer()
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:38.408: showSlowLoadMessage()
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:38.750: EWSFindAssociatedItem.onEwsRequestComplete()
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:38.750: EWSFindAssociatedItem.onEwsRequestComplete() - no cancel check defined.
MicrosoftAjax.js:5 EVOMA (ERROR) 09:16:38.751: logAndReportFailure: EWSFindAssociatedItem.onEwsRequestComplete ID[ERROR_EWS_ERRORRESULTSTATUS] Err[Failed to send a request to the Exchange Server]  [Result status:failed]
MicrosoftAjax.js:5 EVOMA (ERROR) 09:16:38.751: initializationFailed(): Failed to send a request to the Exchange Server
MicrosoftAjax.js:5 EVOMA (TRACE) 09:16:38.751: cancelSlowLoadTimer()
MicrosoftAjax.js:5 EVOMA (ERROR) 09:16:38.752: displayFailure()
MicrosoftAjax.js:5 EVOMA (ERROR) 09:16:38.752: displayMessage()

Fiddler trace shows this JSON response:

ErrorMessage=Failed to make a request via HttpWebRequest. Exception: Unable to read data from the transport connection: The connection was closed.

Is there anything more we can do or test, or does it just not work with CU 8?

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