topic Re: Using host name in license administrator does not work. IP does. in ArcGIS Desktop Installation Support Questions

Using host name in license administrator does not work. IP does.

JasonRoper — Tue, 03 May 2016 15:34:45 GMT

Hello. I have a user in one of our smaller offices that was suddenly unable to use the normal license host name to connect to the license server. It occur a couple of days ago. People in other offices are fine. We can ping the license server host. When I put the name and port number in the web browser as http://esrilicenseserver01:27004 it does not return a 404 error. Entering the host name return the error "...Invalid host name". When I use the port@ip format, it works. Just wondering why the host name is suddenly not working. Not sure if it's an application error or a network error.

Re: Using host name in license administrator does not work. IP does.

V_StuartFoote — Tue, 03 May 2016 16:27:31 GMT

@Jason, *

The clients may be receiving an IPv6 host name resolution.

At the client, does an nslookup of the host name return the IPv4 or IPv6 address?

If IPv6 rather than IPv4 (or vice versa if you are natively IPv6 on you switches) you'll have to tweak the client Tcpip6 service parameters setting a DisabledComponents DWORD value.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters

See this Microsoft KB: https://support.microsoft.com/en-us/kb/929852

Stuart