Unable to activate my license key

Answer: In case of activation failure, Hosting Controller has a 15-days grace period, after that it is not functional until it is re-activated. Adding a license key activates the license.
 What are the common reasons of failed license activation?
 Check for the reasons given below, if you get the error "Error: 70900330: License information could not be updated." on saving your serial key in HC panel: 

1. The server is not connected to Internet: Before entering your license key, make sure that the server is connected to the Internet and you can browse any site on your server. 
2. The license key was already activated: If the license key is already activated then you will be notified upon entering the license key in ‘Settings’ utility. You need to contact sales@hostingcontroller.com in this case. 
3. The license key is blocked: If the license key is known to be pirated or cracked then you will be notified upon entering the license key in HC panel. You need to contact sales@hostingcontroller.com in this case. 
4. The license key was not registered: If the license key is not found in central authentication server's database then you will be notified upon entering the license key in HC panel. You need to contact sales@hostingcontroller.com in this case. 
5. The serial key entered is not a valid key: If the serial key entered is an invalid key this means that the License key was not purchased from http://HostingController.com website or from an authorized reseller and it's a fraud license key.   
6. Allowed website limit in license is exceeded: Make sure the existing number of websites created through HC on that server does not exceed the total websites allowed in the serial key. e.g. In case of 100 domains license, the existing number of Any of DNS, Mail Domains, or Databases (MySQL + MSSQL) on that server created through HC shall not exceed 100. If 100 domains license is activated on HC database server, then total number of click and install applications installed on the whole cluster through HC panel shall not exceed 100. 
7. HC remoting service is halted: Restart HC Remoting service from Start :: Run :: Services.msc (Hosting Controller Remoting). 
8. Proxy is enabled : If proxy is enabled to run the internet on the server then the following command should be run from the command prompt on the HC Control Server :
   netsh winhttp import proxy source=ie
   After this run open HC Portal URL in browser on the HC Control Server and then activate HC license.
9. Error : 70900330 : License information could not be updated: This happens when there is a connectivity issue between HC DB (SQL) server and the server (which you are unable to activate). Open the RegisterServer.exe file located at path X:\Program Files\Advanced Communications\Hosting Controller\Applications. Click on Register to make sure it is connected successfully. In case you see an error it means there is a problem with the communication which needs to be fixed by giving correct credentials. To verify credentials and connectivity you may also make a test ODBC DSN. In some cases when SQL is on remote machine SQL server port needs to be mentioned in SQL server name along with instance name i-e SQLServer\SQLEXPRESS,1433 
10. Server status shows ‘Down’: In some cases license key does not get activated due to communication issue among servers within cluster. When Edit Server button under Server Manager is clicked, it throws error Error: 73400260: Unknown exception occurred while communicating with Remote Server in the Cluster. To fix this issue go through the article "Server Status Shows Down". 
11. Linux server status shows ‘Down’: If problem is on Linux server then go through article "Linux Server Showing Down in HC Custer".
12. For Failover Mode ONLY (HC10): If you are running HC panel in a failover mode then follow the below instructions in order to activate your both HC panels with license keys:

• Shutdown HC02 machine and access panel from HC01 https://localhost:8797 and activate HC License
• Shutdown HC01 machine and access panel from HC02 https://localhost:8797 and activate HC License

• Any of the servers added in HC cluster may be showing Down. Make sure that all servers are up and Running
• Any of the servers added in HC cluster may be running a different build of Hosting Controller. Make sure that all servers are on the same build