WebRequest returns 401 Unauthorized

[Dave]

I'm trying to make a webrequest to another server on our webfarm (to synch
the cache as explained in http://www.eggheadcafe.com/articles/20030420.asp)
but I'm getting a 401 unauthorized error.

We are using service accounts for the app to run under which I thought would
work in setting the webrequest's credentials property but with no luck....

HttpWebRequest req = (System.Net.HttpWebRequest)WebRequest.Create(sFull Uri);
req.Method = "POST";
Stream stm = req.GetRequestStream();
stm.Write(dataToSend,0,dataToSend.Length);
stm.Close();
System.Net.WebResponse resp;

string ServiceAcct =
System.Configuration.ConfigurationSettings.AppSett ings["ServiceAcct"];
string ServiceAcctPwd =
System.Configuration.ConfigurationSettings.AppSett ings["ServiceAcctPwd"];

NetworkCredential nc = new NetworkCredential(ServiceAcct, ServiceAcctPwd, "");
req.Credentials = nc;
resp = req.GetResponse(); <!--error below...

"The remote server returned an error: (401) Unauthorized. "

[Bruce Barker]

if your webservice is using ntlm, the service account needs to be a domain
account.

-- bruce (sqlwork.com)
"Dave" <Da**@discussions.microsoft.com> wrote in message
news:A8**********************************@microsof t.com...

I'm trying to make a webrequest to another server on our webfarm (to synch
the cache as explained in
http://www.eggheadcafe.com/articles/20030420.asp)
but I'm getting a 401 unauthorized error.

We are using service accounts for the app to run under which I thought
would
work in setting the webrequest's credentials property but with no luck....

HttpWebRequest req =
(System.Net.HttpWebRequest)WebRequest.Create(sFull Uri);
req.Method = "POST";
Stream stm = req.GetRequestStream();
stm.Write(dataToSend,0,dataToSend.Length);
stm.Close();
System.Net.WebResponse resp;

string ServiceAcct =
System.Configuration.ConfigurationSettings.AppSett ings["ServiceAcct"];
string ServiceAcctPwd =
System.Configuration.ConfigurationSettings.AppSett ings["ServiceAcctPwd"];

NetworkCredential nc = new NetworkCredential(ServiceAcct, ServiceAcctPwd,
"");
req.Credentials = nc;
resp = req.GetResponse(); <!--error below...

"The remote server returned an error: (401) Unauthorized. "