I bought a new Stratix V advanced development board months before the Intel/Altera merger. I have installed Quartus 18 Standard and attempt to get a license. However, the license form won't accept the serial number (5SGX ....says it is invalid). Trying to open a ticket also fails for the same reason.
I'd appreciate any help suggestions etc., since I am getting very desperate.
P.S. I also created a ticket with sales, asking them to forward the request to tech support -> response = use the methods that always fails because of the "invalid" serial number
Refer the below links & please try at your end,
Refer the Software License Troubleshooter to solve your issue,
Let me know if this has helped resolve the issue you are facing or if you need any further assistance.
(This message was posted on behalf of Intel Corporation)