Failed to stage application & Polling failed - status 0

[yzzhu]

When I push a .Net application, the log shows that it always encounter error as below:

2015-10-09T15:25:14.95+0800 [API] ERR Encountered error: Staging error: failed to stage application:
2015-10-09T15:25:14.95+0800 [API] ERR Error uploading: (Polling failed - status 0)

somtimes the app can start success after one minute or longer later like this:

2015-10-09T15:25:05.59+0800 [API] OUT Updated app with guid 39073011-3764-44c9-a5d6-ec70867969b3 ({"state"=>"STARTED"})
2015-10-09T15:25:08.15+0800 [STG] OUT Extracted 'C:\IronFoundry\dea_ng\staging\d20151009-864-1edt71c\app.zip' to 'C:\IronFoundry\warden\containers\B092EA38C1694BD2B0\user\tmp\unstaged'
2015-10-09T15:25:14.95+0800 [API] ERR Encountered error: Staging error: failed to stage application:
2015-10-09T15:25:14.95+0800 [API] ERR Error uploading: (Polling failed - status 0)
2015-10-09T15:26:13.33+0800 [DEA] OUT Starting app instance (index 0) with guid 39073011-3764-44c9-a5d6-ec70867969b3
2015-10-09T15:26:17.90+0800 [App/0] OUT 2015-10-09 15:26:16.7219|INFO|1|Program|Port:50108
or
2015-10-09T15:42:24.81+0800 [API] OUT Updated app with guid 60717458-73e7-4203-b32c-99b329ff99e6 ({"state"=>"STARTED"})
2015-10-09T15:42:27.34+0800 [STG] OUT Extracted 'C:\IronFoundry\dea_ng\staging\d20151009-864-k1lsv3\app.zip' to 'C:\IronFoundry\warden\containers\EC5C57E1C9B695F6DD\user\tmp\unstaged'
2015-10-09T15:42:31.46+0800 [API] ERR Encountered error: Staging error: failed to stage application:
2015-10-09T15:42:31.46+0800 [API] ERR Error uploading: (Polling failed - status 0)
2015-10-09T15:44:13.33+0800 [DEA] OUT Starting app instance (index 0) with guid 60717458-73e7-4203-b32c-99b329ff99e6
2015-10-09T15:44:18.78+0800 [App/0] OUT 2015-10-09 15:44:17.0129|INFO|1|Program|Port:50137

Somtimes it stopped here rather than going on the start process, without any log output again.

It's my own IronFoundry test environment, the command I use is "cf push hello -b net -p hello.zip -m 512m -s windows2012", hello.zip is a simple .Net application.

[lotus2015]

hi,
I encountered the same problem,how do you solve this problem?