I'm not able to connect to a service running on Ubuntu 15.10. The system-provided BlueZ version is 5.35. I can reproduce it using the test scripts. On Ubuntu: ./test-profile -s -u b85280dd-b78a-4a45-be4b-b6fec4abd86f -n "Test Server" -C 5 sdptool shows the service: Service Name: Test Server Service RecHandle: 0x10009 Service Class ID List: UUID 128: b85280dd-b78a-4a45-be4b-b6fec4abd86f Protocol Descriptor List: "L2CAP" (0x0100) "RFCOMM" (0x0003) Channel: 5 On a different host (this one running Fedora 22 with BlueZ 5.29), I start a client: ./test-profile -u b85280dd-b78a-4a45-be4b-b6fec4abd86f -c and then ./test-device connect <ubuntu-addr> b85280dd-b78a-4a45-be4b-b6fec4abd86f Traceback (most recent call last): File "./test-device", line 104, in <module> device.ConnectProfile(args[2]) File "/usr/lib64/python2.7/site-packages/dbus/proxies.py", line 70, in __call__ return self._proxy_method(*args, **keywords) File "/usr/lib64/python2.7/site-packages/dbus/proxies.py", line 145, in __call__ **keywords) File "/usr/lib64/python2.7/site-packages/dbus/connection.py", line 651, in call_blocking message, timeout) dbus.exceptions.DBusException: org.bluez.Error.Failed: Connection refused Other times I will get: dbus.exceptions.DBusException: org.bluez.Error.Failed: Resource temporarily unavailable These hosts are already paired. Things work fine when both hosts are using Fedora 22. Any suggestions on how I can diagnose this further? Thanks, Mark -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html