As for the MAC address, it has to be hex, exactly 12 characters either separated by dashes every 2 characters or all together.  Casing does not matter.  So, the following are valid:

01-23-45-67-89-ab

0123456789AB

Email me if you keep having problems getting it reactivated.

Sorry about posting to such an old thread, however this is the first time (in a year) that I'm slightly confused and I can't find an answer in your forums (great job).  Any way, I'm trying to get ES running on a server and the machine is hosting multiple websites.  So, as per the instructions I've:

1. Installed and setup the site on the server.  I've created a dns pointer with my isp.

2. i can get the status page up on the server. (Good thing).  But it shows I need a license dll.

3. So I've downloaded and installed the license file. my host name matches my dns record (es.raftecho.com) But it still show's I need to activate (i've placed the file in the es \bin folder)

4. I've triple checked all my settings on the client side and the server side.  They all match perfectly (however I'll check again).

So here's my questions:

1. Since the es site in is a virtual directory will this prevent the license dll from being properly created because it is based upon the host header name or should I use the server's name and directory?

2. On my activation page the license ip is 127.0.0.1 (which, I assume is a default setting) should this matter or should it be the public ip address?

thanks for the response and great work guys on the product, been very satisfied with it so far!

Sorry for the multiple posts before a response, but here goes.

So I've determined it's a licensing issue, I must have misconfigured my license file.  So now my question is: If my enterprise server is behind a router that is port forwarding to the server, should the mac of the router be used in the license file or the server's mac address?

 I think this maybe the problem because my host name resolves to the public ip which is located on the router/firewall, which then does the NAT, then it forwards to the server. 

Sorry about being such a pain, but I haven't been able to find any posts in the forums similar to this.

Thanks.