Powershell调用webrequest无法正常工作(Powershell invoke-webrequest not working)

 我有一个Powershell脚本，应该对一个站点运行一个Invoke-WebRequest 。 我想将此脚本与PRTG网络监视器一起使用，以确保Web服务器正常运行。 
 
 目前，该脚本可以在本地计算机上运行，​​也可以在探针服务器上使用我的域凭据运行。 但是，使用PRTG使用的本地管理凭据登录时，它不会运行。 
 
 我把它缩小到一条线， 
 
Invoke-WebRequest $uri -Method POST -Body $body -TimeoutSec 10
 
 看来，无论出于何种原因，使用此帐户时， Invoke-WebRequest将无法运行。 运行该行时，它不会产生任何内容，也不会产生错误，警告或输出。 $uri和$body变量也已定义。 
 
 即使我使用本地管理员PRTG帐户登录探测服务器并以另一个用户身份运行Powershell（使用我自己的凭据），它仍然无法生成任何内容。 
 
 为什么本地管理员帐户无法运行Invoke-WebRequest ？ 这是在带有PSVersion 4.0的Windows Server 2012R2上发生的。 

I have a Powershell script that is supposed to run an Invoke-WebRequest against a site. I want to use this script with PRTG Network Monitor to ensure that a web server is up and running properly.
 
Currently, the script works running from my local machine as well as running with my domain credentials on the probe server. However, it doesn't run when logged in with the local admin credentials which is what PRTG uses.
 
I've narrowed it down to a single line,
 
Invoke-WebRequest $uri -Method POST -Body $body -TimeoutSec 10
 
It appears that for whatever reason, when using this account, Invoke-WebRequest will not work. When running that line, it doesn't produce anything, no error, warning, or output. Both $uri and $body variables are already defined as well.
 
Even if I'm logged into the probe server with the local admin PRTG account and run Powershell as another user (using my own credentials) it still fails to produce anything.
 
Why would a local admin account not be able to run Invoke-WebRequest? This is happening on a Windows Server 2012R2 with PSVersion 4.0.

原文：https://stackoverflow.com/questions/50258933