Lexicon LXP does not recognize iLok2 in sonar 8.5.3.282 in windows 8 64bit

hello Music friends, Does any of you have success using Lexicon LXP native bundle in sonar 8.5.3.282 in windows 8 (64 bit home)? I don't. the plugins load, but after a few seconds a warning pops up in the systray telling me there is an authorization error. Seconds later the plugin itself shows "This plugin requires a license on the second generation iLok. please save your work, insert the iLok and restart the application." Other plugins that require iLok however work fine. When I log into Ilok.com it does recognize my iLok and the license for LXP is clearly there. It worked previously in windows XP, so something windows 8 seems to be the problem. I have the latest pace and ilok drivers and the latest versions of the LXP bundle. I have already tried running sonar in administrator mode, and also installed the plugins in compatibility mode. I also tried 32- and 64-bit installations. Running out of ideas now I am communicating with lexicon on this issue but since this this did not yet yield anything useful i thought I'd try here too. Thanks