Licensing Issues with 1G/10GbE PHY IP Core In Quartus II Releases 12.1 - Licensing Issues with 1G/10GbE PHY IP Core In Quartus II Releases 12.1 Description If your 1G/10 Gbps Ethernet PHY IP Core turns On the Enable automatic speed detection option in version 12.1 of the Quartus II software, you must have licenses for both the 1G/10GbE Ethernet PHY and the 10GBASE-KR PHY IP Cores. Resolution The workaround is to upgrade to version 12.1 SP1 of the Quartus II software where only the 1G/10GbE license is required. Custom Fields values: ['novalue'] Troubleshooting novalue True ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 12.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']