Failed Acronis Cyber Cloud O365 mail backup
Hello.
This is a cloud product inquiry.
My client uses Acronis Cyber Cloud to back up O365 mail.
I have had no problems for several months getting my mail backups using Acronis Cyber Cloud.
However, since recently, more than 3 to 10 random mail backups fail every day as the following error message is displayed.
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Thrown .NET exception 'System.Net.WebException': The underlying connection was closed. Send unexpected error. Exception stack trace: Location: System.Web.Services.Protocols.WebClientProtocol.GetWebResponse(WebRequest request) Location: System.Web.Services.Protocols.HttpWebClientProtocol.GetWebResponse(WebRequest request) Location: System.Web.Services.Protocols.SoapHttpClientProtocol. Invoke(String methodName, Object[] parameters) Location: ComEwsAdapter.ExchangeWebService.ExchangeServiceBinding.GetFolder(GetFolderType GetFolder1) Location: MsExchange.Ews.ReTryStrategy.DoTry[TReturn,TArg](TCallDelegate`2 call, TArg arg) Location: MsExchange.Ews.ReTryStrategy.DoTry[TReturn,TArg](TCallDelegate`2 call, TArg arg). Ews.ReTryExchangeServicePoint.GetFolder(GetFolderType getFolder) Location: MsExchange.Ews.ExchangeConnectionEngine.CheckConnection(IExchangeServicePoint service, RootObjectServicesProvider root) Location: MsExchange.Ews.ExchangeServiceFactory.GetService() Location: MsExchangeConnection..ctor() Location: MsExchange.Ews. NetworkCredential user, RootObject root, ConnectionOptions options) Location: MsExchange.Ews.ExchangeConnection..ctor(String url, Credentials user, RootObject root, ConnectionOptions options) Location: MsExchange.Ews.Exchang eClient.ConnectToAsUser(String url, Credentials user, RootObject root, ConnectionOptions options, IExchangeConnection& connection)
Additional information:-----------
Error code: 20250646
Field: {"$module":"service_process_vsa64_27904","CommandID":"8F01AC13-F59E-4851-9204-DE1FD77E36B4"}
Message: TOL: Failed to execute the command. back up
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Error code: 20250646
Field: {"$module":"gtob_backup_command_addon_vsa64_27904","CommandID":"8F01AC13-F59E-4851-9204-DE1FD77E36B4"}
Message: TOL: Failed to execute the command. back up
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Error code: 40829031
Field: {"$module":"arx_agent_fork_vsa64_27904","IsReturnCode":1}
Message: A generic error of Microsoft Exchange backup component.
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Error code: 5963794
Field: {"$module":"arx_agent_fork_vsa64_27904","IsReturnCode":1}
Message: Failed to back up document container.
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Error code: 5964060
Field: {"$module":"arx_agent_fork_vsa64_27904"}
Message: Nothing was backed up. See log for details. Last error:
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Error code: 5963787
Field: {"$module":"arx_agent_fork_vsa64_27904"}
Message: Could not open public folder or mailbox 'example@customer.com'.
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Error code: 1
Field: {"$module":"arx_agent_fork_vsa64_27904","uri":"https-outlook.office365.com-EWS-Exchange.asmx"}
Message: Failed to connect to Microsoft Exchange API using the following URL 'https-outlook.office365.com-EWS-Exchange.asmx'
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Error code: 5966877
Field: {"$module":"arx_agent_fork_vsa64_27904"}
Message: Error within COM EWS adapter.
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Error code: 5966892
Field: {"$module":"arx_agent_fork_vsa64_27904"}
Message: Thrown .NET exception 'System.Net.WebException': The underlying connection was closed. Send unexpected error.
Exception stack trace: Location: System.Web.Services.Protocols.WebClientProtocol.GetWebResponse(WebRequest request)
Location: System.Web.Services.Protocols.HttpWebClientProtocol.GetWebResponse(WebRequest request)
Location: System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
Location: ComEwsAdapter.ExchangeWebService.ExchangeServiceBinding.GetFolder(GetFolderType GetFolder1)
Location: MsExchange.Ews.ReTryStrategy.DoTry[TReturn,TArg](TCallDelegate`2 call, TArg arg)
Location: MsExchange.Ews.ReTryExchangeServicePoint.GetFolder(GetFolderType getFolder)
Location: MsExchange.Ews.ExchangeConnectionEngine.CheckConnection(IExchangeServicePoint service, RootObjectServicesProvider root)
Location: MsExchange.Ews.ExchangeServiceFactory.GetService()
Location: MsExchange.Ews.ExchangeConnection..ctor(String url, NetworkCredential user, RootObject root, ConnectionOptions options)
Location: MsExchange.Ews.ExchangeConnection..ctor(String url, Credentials user, RootObject root, ConnectionOptions options)
Location: MsExchange.Ews.ExchangeClient.ConnectToAsUser(String url, Credentials user, RootObject root, ConnectionOptions options, IExchangeConnection& connection)
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(All forward slashes were changed to hyphens because hyperlinks should not be included in the content.)
I googled the error message, but couldn't find it.
What actions are needed to resolve this issue?
Hello,
As a temporary workaround, we spread the backup window.
(For example, the existing schedule backed up the mail of 90 people at 1 o'clock. Now, the schedule has been changed to backup 30 people at 1 o'clock, 30 people at 2 o'clock, and 30 people at 3 o'clock.)
It's been about 3 days since the change, and so far no issues have occurred.
We will have to wait a few more days to see if the same problem occurs again.
Thank you.
Hello,
When I checked the condition today, I still have the same symptoms.
Thank you.
The same still here - and an increasing number of fails.
Best greetings from Germany
Olaf
I don't know if this is the correct workaround.
However, since October 30, after taking the action, there have been no problems.
I solved the problem by adding below registry value in CMD window. (TLS 1.2 Activation Registry)
> reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client" /v Enabled /t REG_DWORD /d 1 /f > reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\ Protocols\TLS 1.2\Client" /v DisabledByDefault /t REG_DWORD /d 0 /f > reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server" /v Enabled /t REG_DWORD /d 1 /f > reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server" /v DisabledByDefault /t REG_DWORD /d 0 /f
thank you.
The issue had been fixed for a while (I assume on the MS side) but is now back since 24th January for insite backups with Acronis Cyber Backup 15.
Best greetings from Germany
Olaf