How to Troubleshoot “connection to KMS server failed” error | KMS Server failed [Solved]
The issues described here are related to an error message they got as below. The connection to my KMS server failed! Trying to connect to another one… Please wait… Sorry! Your version is not supported. There are two main causes of this issue. 1. The cause of client First of all, please make sure that Windows Update is enabled and your intenret connection is stable. To check if my KMS servers are blocked or not, please open your internet browser then try going to: http://kms8.msguides.com . If the page is visible, it means this server is not blocked. One other point to note is that you need to run command prompt/batch file with admin rights. Make sure “administrator” is in the title Otherwise, the connection will be denied by UAC system . 2. The cause of server Recently I need to do some experiments in the kms7 server so I changed the default KMS port (1688) to another one. And besides, I upgraded CPU and RAM memory on the kms8 server. Because the number of daily c