One step closer, the issue appears to have something to do with SSL redirection in IIS, using the rule below, In the web.config umbracoUseSSL is set to true.

<rule name="Redirect to HTTPS" stopProcessing="true">
          <match url="(.*)" />
          <conditions>
            <add input="{HTTPS}" pattern="^OFF$" />
          </conditions>
          <action type="Redirect" url="https://{HTTP_HOST}/{R:1}" redirectType="Permanent" />
        </rule>

We are getting the same scheduled publish error -- did you resolve it by changing the umbracoUseSSL to true? Ours is False right now.

Could it be related to this issue? http://issues.umbraco.org/issue/U4-5379 - The weird thing though is that it seems the reported issue should have been fixed in 7.1.6 though...

/Jan

@Mark, no I've tried that but that didn't solve it. The value of umbracoUseSSL is set to true.

@Jan, if I turn OFF the urlRewrite rule to force HTTPS, all goes well. It seems to be related to the urlRewrite, although this seems a very common scenario to me.

The odd thing though is, that when I use a System.Net.WebClient from my local development machine to connect to this URL, all goes well and I can watch the resonse.

Following the errormessages in the logs, I scanned the the IIS logs and I can't find any requests to the /umbraco/ping.aspx nor the /umbraco/RestServices/ScheduledPublish/Index

(never mind, replied twice)

Hi Marcelh

Sounds weird indeed - Perhaps you could try to add a comment about it to the issue I linked above? Just to see if some of the much brighter guys who have had a dialogue there may respond?

Could be a bug or because something needs to be setup differently.

/Jan

I'm having a very similar problem where my logs are being filled every minute with these errors:

2014-10-30 12:20:24,139 [7] ERROR Umbraco.Web.Scheduling.KeepAlive - [Thread 55] Error in ping System.Net.WebException: The operation has timed out at System.Net.WebClient.DownloadDataInternal(Uri address, WebRequest& request) at System.Net.WebClient.DownloadString(Uri address) at Umbraco.Web.Scheduling.KeepAlive.Start(Object sender)

2014-10-30 12:20:54,154 [7] ERROR Umbraco.Web.Scheduling.ScheduledPublishing - [Thread 10] An error occurred with the scheduled publishing System.Net.WebException: The operation has timed out at System.Net.WebClient.UploadDataInternal(Uri address, String method, Byte[] data, WebRequest& request) at System.Net.WebClient.UploadString(Uri address, String method, String data) at Umbraco.Web.Scheduling.ScheduledPublishing.Start(ApplicationContext appContext)

I too am running under SSL using rules within IIS but even removing these rules I still receive these errors. Visiting /umbraco/ping.aspx works but /umbraco/RestServices/ScheduledPublish/Index brings back a 404.

Hi Ian, that sounds exactly like the same problem. I noticed /umbraco/RestServices/ScheduledPublish/Index responds with a 404 as well.

I haven't solved it yet, but keep us posted if you do.

Seems like I have the same problem - I had SSL settings in place but removed those now. The error

ERROR Umbraco.Web.Scheduling.KeepAlive - [Thread 55] Error in ping System.Net.WebException: The operation has timed out...

still appears. Also for me /umbraco/RestServices/ScheduledPublish/Index responds with a 404...

Well, interesting enough, you receive "The operation has timed out", I receive "The underlying connection was closed". That sounds different but may have the same root cause.

did you guys solve this issue? I'm experiencing the same issue and have also a SSL redirect rule in place.

Upgrading to Umbraco 7.1.9 solved it for me.

yup... i upgraded too (7.2.1) and the problem is solved..

i still got this issue on a totally new 7.2.1 and its not even using SSL. 

same here. i found a bug report of this problem already. http://issues.umbraco.org/issue/U4-6085

@Rasmus - I have the same problem using 7.2.1 and not even using SSL

Did anyone figure this one out?

I have same issue, that because my VPS, I can open website on the server, maybe because dns problem. My solution is change dns to 8.8.8.8 or add website domain to host file like: 127.0.0.1 domain.com

Hope it help ;)

Did anyone find a solution to this?

Same issue Umbraco 7.4.3

Related Issue

Anyone found a solution?

Running 7.1.5 and SSL

2016-10-18 10:57:27,713 [6] ERROR Umbraco.Web.Scheduling.ScheduledPublishing - [Thread 40] An error occurred with the scheduled publishing
System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a receive. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host
   at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
   at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
   --- End of inner exception stack trace ---
   at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
   at System.Net.PooledStream.Read(Byte[] buffer, Int32 offset, Int32 size)
   at System.Net.Connection.SyncRead(HttpWebRequest request, Boolean userRetrievedStream, Boolean probeRead)
   --- End of inner exception stack trace ---
   at System.Net.WebClient.UploadDataInternal(Uri address, String method, Byte[] data, WebRequest& request)
   at System.Net.WebClient.UploadString(Uri address, String method, String data)
   at System.Net.WebClient.UploadString(String address, String data)
   at Umbraco.Web.Scheduling.ScheduledPublishing.Start(ApplicationContext appContext)

This stops us from being able to save and publish a page.

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