This issue may also occur if no product key was entered during installation and then you attempt to activate the system. I dont know what els i can do to fix this. This issue may occur because firewall settings are not configured on the KMS host, or DNS SRV records are out-of-date.

we have a cisco firewall that next to are gateway to the instart net but its not on the local internet for filter only for in come and out going connastion to the internet. we dont have the firewall truned on the server. There is a srv record for the server and we only have one domain with two servers.

Or, make sure that the SRV records point to a valid KMS host. Replace RenewalInterval with a number of minutes. Well-connected zoned LAN, If ports on firewalls can be opened between KMS clients and hosts: Use KMS hosts in core network. sri RenewalInterval: Changes how often a KMS client attempts to renew its activation by contacting a KMS host. Replace ActivationInterval with a number of minutes.

To work around this issue, make sure that the KMS port has access through the firewall on the KMS host. Changes how often a KMS client attempts to activate itself when it cannot find a KMS host. This issue may occur because firewall settings are not configured on the KMS host, or DNS SRV records are out-of-date. When you try to use a KMS client to activate one or more computers, you may receive the following error message: Ok now i am getting this error kms host error code 0x800706BA microsoft says

Kms client firewall settings