set Response_Redirect Question

Your current iRule does not do anything besides consuming memory. Are you sure you've pasted everything?

Try something as below:

when HTTP_REQUEST {

    switch -glob [HTTP::uri] {
      "*/wp-admin" -
      "*/wp-login.php" {
        HTTP::respond 302 location "http://www.asite.com/"
        event disable
        TCP::close
         Forces a temp redirect to a given location (non-cacheable). Instructs F5 to stop processing the HTTPrequest event. The TCP connection record will be removed from the connections table.
      } default {
        pool Pool_Live_newsroom_HTTP80
         Instructs F5 to select a pool specified. Assuming this is the same as your VS default pool, this section can be removed from the iRule.
      }
    }
}