Hi,

I am using a J-Link EDU with the Remoteserver in Tunnel Mode. I am using the current JLink version V6.12i on Ubuntu 16.04 and Mac OS X 10.9.5.
I have faced some problems during the restart of the server. The error did not occure with version V6.10m.

If I start the Remoteserver in Tunneling mode (-UseTunnel) the frist time, everything works perfectly. I am able to connect with a client and can debug my device.
After I closed the connection, I am not able to restart the Remotserver again. The Remoteserver keeps repeating following message:

JLinkRemoteServer -UseTunnel
SEGGER J-Link Remote Server V6.12i
Compiled Feb 3 2017 15:27:42

'q' to quit '?' for help

Connected to J-Link with S/N 269302065

Resolving host name (jlink.segger.com)... O.K.
Tunnel server IP: 85.114.137.111
Connecting to tunnel server... Error -3. Failed to register at tunnel
server.
Resolving host name (jlink.segger.com)... O.K.
Tunnel server IP: 85.114.137.111
Connecting to tunnel server... Error -3. Failed to register at tunnel
server.Resolving host name (jlink.segger.com)... O.K.
Tunnel server IP: 85.114.137.111

On the Linux computer, it is possible to restart the connection after a few minutes. But the Mac has to be rebooted, to reconnect to the tunnelserver.

Is this an issue from the current build or am I doing something wrong?

Thank you for your help.

Flavio