Yes Im getting something similar. Mines a timeout error but in the same pathway.

Im still searching for a fix.

This is mine.

ERROR Umbraco.Web.Scheduling.ScheduledPublishing - [Thread 24] An error occurred with the scheduled publishing
System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 210.50.3.53:80
   at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
   at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)

same problem here on umbragco 7.1.8 but with me i tink it was because of the ipblock rules to block access to de backend. I have exclude the following paths

/umbraco/ping.aspx /umbraco/RestServices/ScheduledPublish/Index

and now the error don't show.

I'm getting something similar on Umbraco 7.1.9, anyone found something on this. Is it a server issue, Umbraco issue or something intertwined?

2014-12-18 00:00:02,135 [9] ERROR Umbraco.Web.Scheduling.ScheduledPublishing - [Thread 56] An error occurred with the scheduled publishing
System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 195.190.31.159:80
   at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
   at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)
   --- 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 Umbraco.Web.Scheduling.ScheduledPublishing.Run()

On my end it seems to be an ip-error, so seems server related. Tried to ping the ip as well as the domain without succes, this does seem strange though as the site is online. Sorry for taken up the space :-)

I got a similar error yesterday on one Umbraco installation, Running Umbraco 7.2.1 on Azure Website.

ERROR Umbraco.Web.Scheduling.ScheduledPublishing - [Thread 13] An error occurred with the scheduled publishing

System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions 127.0.0.1:80
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)

   --- 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 Umbraco.Web.Scheduling.ScheduledPublishing.Run()

2015-02-03 12:49:15,905 [9] ERROR Umbraco.Web.Scheduling.KeepAlive - [Thread 12] Error in ping

System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: An attempt was made to access a socket in a way forbidden by its access permissions 127.0.0.1:80
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)

 --- End of inner exception stack trace ---

at System.Net.WebClient.DownloadDataInternal(Uri address, WebRequest& request)
at System.Net.WebClient.DownloadString(Uri address)
at Umbraco.Web.Scheduling.KeepAlive.Start(ApplicationContext appContext, IUmbracoSettingsSection settings)

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