TCP DSTREAM Connection Fails with Trace Enabled - TCP DSTREAM Connection Fails with Trace Enabled Description If you try to start a DS-5 debug configuration that connects to the target using DSTREAM over Ethernet, and the 4 GB DSTREAM trace buffer is enabled, the connection fails. You see a message similar to the following: Failed to open connection to DSTREAM trace server at <hostname> Resolution Add "TCP:" as a prefix to the host name of the target DSTREAM device. For example, if the host name is device1.example.com , specify the connection target as TCP:device1.example.com . Custom Fields values: ['novalue'] Troubleshooting novalue True ['novalue'] ['FPGA Dev Tools Quartus II Software'] 13.1 13.0 ['Arria® V FPGAs and SoCs', 'Cyclone® V FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']