PAC File not working for one site

I have a file called WPAD.DAT in the root web of a IIS6 server in the US.  All sites everywhere are fine with this file around the world except Tokyo.  I have a line in there that defines to "go direct" if they are within a subnet of 192.168.0.0 - which they are.  But it will not work.  Other sites that are in a 192.168.0.0 subnet work fine.  

If I hard code the Proxy in Internet Explorer, all is OK until they take the laptop home which is why I want to use "automatically detect".  

Please help me.  I wish there was a way to debug the PAC file to see where along this file they drop, or if it is pulled in at all.  I am using HTTPWatch basic and WireShark, but do not see anything jumping out at me.  

I also forced the script to point to the PAC file at the IIS server, no joy.  So it is set back to automatic and I am hoping to fix this ASAP.

FYI - I do have a DNS entry tor WPAD, etc so all that is right....

Here is my PAC file

function FindProxyForURL(url,host)
{
var resolved_ip = dnsResolve(host);
var proxy_str = "PROXY 192.168.237.10:8080; DIRECT";

if (
    isInNet(myIpAddress(), "172.35.0.0", "255.255.0.0") ||
      isInNet(myIpAddress(), "172.21.0.0", "255.255.0.0") ||
    isInNet(myIpAddress(), "172.22.0.0", "255.255.0.0")      ||
      isInNet(myIpAddress(), "192.168.25.0", "255.255.255.0")
  ) {
    proxy_str = "PROXY 192.168.178.10:8080; DIRECT";
  }

if (shExpMatch(url,"*ir.mydomain.com*")) return proxy_str;
if (shExpMatch(url,"*images.mydomain.com*")) return proxy_str;
if (dnsDomainIs(host,".mydomain.com")) return "DIRECT";
if (isPlainHostName(host)) return "DIRECT";
if (isInNet(resolved_ip, "10.0.0.0", "255.0.0.0")) return "DIRECT";
if (isInNet(resolved_ip, "172.16.0.0", "255.240.0.0")) return "DIRECT";
if (isInNet(resolved_ip, "192.168.0.0", "255.255.0.0")) return "DIRECT";
if (isInNet(myIpAddress(), "192.168.201.0", "255.255.255.0")) return "DIRECT";
if (isInNet(myIpAddress(), "192.168.177.0", "255.255.255.0")) return "DIRECT";
return proxy_str;
}