Web Application connection

This week I have a computer that is unable to connect to a web application called Facility Scheduler hosted by ACS Technologies.  At the same time the computer is having problems with iTunes.  Do not know if they are connected, but suspect they are.  Here is the error message I get when the computer tries to run the Facility Scheduler

System.Net.WebException: The underlining connection was closed: Unable to connect to the remote server. --> System.Net.Sockets.SocketException: The parameter is incorrect

at System.Net.Sockets.Socket..ctor(AddressFAmily, SocketType socketType, ProtocolType protocolType)

at System.Net.ServicePoint.Get Connection(PooledStream PooledStream, Object owner, Boolean async, IPAddress& address, Socket& abortSocket 6, Int32 timeout)

atSystem.Net.PooledStream.Activate(Object owingObject, Boolean async, Int32 timeout, General AsyncDelegate asyncCallback)

At System.Net.Connection.CompleteStart Connection(Boolean async, HttpWebRequest)

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

at System.Net.Webclient.DownloadInternal(URI address, Webrequest & request)

at System.Net.WebClient.DownloadString(Uri address)

at AcsTech.Api.ApiHelper.CheckForTimeSkewError()

at AcsTech.Client.Deploy.AcsDeployment.Update(Boolean silent)

at AcsTech.Client.Win.Main.Program.Main (String[] args)


Does anyone have a clue how I can fix this?  I have tried repairing the .Net Framework but that did not do anything.  Something seems to have been corrupted, but I do not know what or how to fix it.  Any help would be appreciated.
Bill2802Asked:
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Duy PhamFreelance IT ConsultantCommented:
There could be several reasons for that error:
Could not connect to the internet
Proxy server is configured and it does blocks the connection to remote server (HTTP requests)
DNS routing fails to redirect requests to the server
You are connecting to an VPN that doesn't support split tunneling
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Bill2802Author Commented:
Thanks
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