Hi,

the error from powershell is :

Error creating the Web Proxy specified in the 'system.net/defaultProxy'

-----------------------------update 1

I tried to install "Charles" to figure out the web request, it is amazing that everything go well suddenly, but if I　uninstall  Charles, it stil can not work, do anyone know ?

------------------update 2

I deploy a sharepoint hosted app,the url is <pre>http://app-d6ca8dc432b351.apptestdomain/sites/app/SharePoint_Hosted_Hello_App/Pages/Default.aspx?SPHostUrl=http%3A%2F%2Fpsalab%2Dsp2013%2Fsites%2Fapp&SPLanguage=en%2DUS&SPClientTag=0&SPProductNumber=15%2E0%2E4420%2E1017&SPAppWebUrl=http%3A%2F%2Fapp%2Dd6ca8dc432b351%2EAppTestDomain%2Fsites%2Fapp%2FSharePoint%5FHosted%5FHello%5FApp</pre> if I access from the psalab-sp2013(error machine) it still not find, but I access from another work machine in the same domain with the url, it access the app successfully.

I can enter sharepoint site with the url like:

ps:

But when I enter the url like "http://psalab-sp2013:26531" in another computer which is in the same domain, it works well, what happended to my computer?