Why does a message appear in STEP 7 stating that there is not a license key present even though the relevant license key is installed?
There is a range of possible causes for the occurrence described above. Suitable remedies are recommended in the table below:
- Incompatible time zone set on the computer
- Licenses not displayed in the ALM
- Upgrade license key was transferred to the hard disk during installation of STEP 7
- Automation License Manager Service not started
- Incompatibility of the "Mobile Connect" software of a provider (T-Online, O2 or Vodafone)
|1||Incompatible time zone set on the computer (behavior cleared in Automation License Manager V3.0)|
Please check whether you have one of the following time zones set on your computer:
STEP 7 cannot find any license key in these time zones with a "half" hour.
|2||Licenses not displayed in the ALM|
You have previously used a version of STEP 7 from V5.3 onwards on your computer, and your license key has been approved as error-free up to now. A message now appears indicating that the license key for STEP 7 cannot be found. Furthermore, the licenses are no longer displayed in the ALM. However, if you log in under another user name, the license key is found properly.
STEP 7 creates a file for each license query. If there is a large number of files, the behavior described above occurs after some time.
You can then see the licenses again in the Automation License Manager and you can restart STEP 7.
|3||Upgrade license key was transferred to the hard disk|
If you have transferred the upgrade license key of STEP 7 to your hard disk, then when you start your new version of STEP 7, you get the message stating that the license key is invalid. The cause for this behavior is that you now have two different license keys on your computer, but no valid license key for the new version of STEP 7.
You still have to upgrade the license key. Information about this is available in
Once you have made the upgrade, you can start your new version of STEP 7.
|4||Automation License Manager Service not started|
Check whether the Automation License Manager Service is started in the administration settings of your computer. If the Automation License Manager service is terminated or interrupted, you must restart it.
|5||Incompatibility of the "Mobile Connect" software of a provider (T-Online, O2 or Vodafone)|
Generally, this concerns mobile computers like laptops and field PGs that rely on a mobile Internet connection. "Mobile Connect" software of a provider like T-Online, O2 or Vodafone is installed on these computers. This software includes an optimization component for communication. This optimization component is not compatible with the Windows communications structure, which has the following effect on the Automation License Manager: