The Dr.Web license does not automatically update. When I try to manually update it, the following error is shown:
Unable to assign the license key 'PLSK012345678910' to the node 'apache.example.com': Another 'drweb-unix' license key is already assigned to the node 'apache.example.com'.
This behavior is caused by software issue #PPA-474. The fix is included in MU #7.
Update PA to the latest version: