Soc EDS fail to connect to usb blaster

Good! Altera Guru, QuaPro and SigTap uses the same libjtag_client.so for work ?

"Failed to load libjtag_client.so" may be on small rights of .so: if need be executable +x ?

May try 3 other versions of SoC EDS ver 13.*, its .so is worked ?

Then will copy good .so to 14.0 directory...

May be extended diagnostic of loading .so in any console with keys ?

P.S. And may use many USB-Blasters and connect to board in round-robin -- if some by work ? :)

In SoC kit present also 2nd USB-Blaster-connector (left-down corner) for external JTAG-device, with connecting to it 1st is automatic off. May try this way.