Warmup scripts

Question

Hello,
I have many warmup scipts in powershell for SP 2010, but none of them seems to work, at least i could not make them work.
I just wish to let you know the particular code fragment which ultimately fails:
    $wc = new-object net.webclient;
    $wc.credentials = [System.Net.CredentialCache]::DefaultCredentials;
    $pageContents = $wc.DownloadString("http://mywebapp/default.aspx");
--OR--
    $wc = new-object net.webclient;
    $wc.Credentials = New-Object System.Net.NetworkCredential("domainuser", "password", "mydomain");
    $pageContents = $wc.DownloadString("http://mywebapp/default.aspx");
What i get with both is:
Exception calling "DownloadString" with "1" argument(s): "The remote server returned an error: (401) Unauthorized."
The user i used is actually Primary Site Collection Administrator, which has all rights over all the sites.
The MOSS 2010 farm is recently installed, with default configuration.
I also allowed the anonym access within the webapp.
Does anybody have any idea what could be the issue ?
Thank you

Answer 1

Dear Leonid Lyublinski,
no luck :(, i have logged in to the server as FarmAdmin,
and tried, still get the Unauthorized access.
Each time i run the script my FarmAdmin account appears in the EventLog,
Audit Failed, see below.
How could it be, my FarmAdmin is a localadmin on the server
+ as far as i know the Initial Config Wizard assign more rights to the FarmAdmin account
(sql db_owner, etc)
Any thoughts ? What should i check about my FarmAdmin account ?
Thank You
Dear Nico,
it does the same, unfortunately, with the same error.
Thank You 
An account failed to log on.
Subject:
    Security ID:        NULL SID
    Account Name:        -
    Account Domain:        -
    Logon ID:        0x0
Logon Type:            3
Account For Which Logon Failed:
    Security ID:        NULL SID
    Account Name:        myFarmAdmin :)
    Account Domain:        myDomain :)
Failure Information:
    Failure Reason:        An Error occured during Logon.
    Status:            0xc000006d
    Sub Status:        0x0
Process Information:
    Caller Process ID:    0x0
    Caller Process Name:    -
Network Information:
    Workstation Name:    SRVMOSS01
    Source Network Address:    (my ip address could not tell:)
    Source Port:        59070
Detailed Authentication Information:
    Logon Process:      
    Authentication Package:    NTLM
    Transited Services:    -
    Package Name (NTLM only):    -
    Key Length:        0
This event is generated when a logon request fails. It is generated on the computer where access was attempted.
The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.
The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).
The Process Information fields indicate which account and process on the system requested the logon.
The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.
The authentication information fields provide detailed information about this specific logon request.
    - Transited services indicate which intermediate services have participated in this logon request.
    - Package name indicates which sub-protocol was used among the NTLM protocols.
    - Key length indicates the length of the generated session key. This will be 0 if no session key was requested.