"This Serial Number is already activated with installation (E158)" error message is displayed when customer is trying to register the analyzer.
When the customer is logged into the Analyzer and have their NSA device chosen in the Global View.
And is on the Firewall Tab under the General | Status page and selects enter he will get the page below (without the error)
Then when they enter the words "ANALYZER" in the serial number section, leaves the authentication code section blank, enters a friendly name and selects submit, they get the actual page below, (with the error message).
When a user uses two different MySonicWall.com accounts.
One to register the SonicWall device and one to register the Analyzer, this error is generated.
Please use only one mysonicwall.com account when registering the SonicWall and the Analyzer.