I am having a similar error as ahmedes. I uninstalled and reinstalled DEVICE, but i still have the same issue. The program never worked before.
When I start DEVICE, a window pops up with the following message:
Error: Unknown user
Would you like to reconfigure your license settings?
My license is activated, and in the details section of the license, I have this:
INCREMENT layout_ide LUMERICL 1.0 1-may-2017 1 ISSUER=“Lumerical Solutions” ISSUED=7-jan-2017 NOTICEemail@example.com SN=ID=something;SU=1; START=1-jan-2017 ONE_TS_OK SIGN=“a bunch of things”
I do not get this problem with FDTD solutions or MODE solutions. Both of these work properly.