Hello,
We have a Xilinx VC709 FPGA board (Virtex 7), with a JTAG-STM1 interface. The JTAG programmer no longer shows up in in Vivado (2018.2) Hardware Manager (centos linux)
A KC705 works correctly so it doesn't appear to be driver/SW issue.
We had this VC709 installed in to a PCIe slot on a PC.
We can no longer reprogram FPGA/FLASH.