Howto cancel a scheduled test that seems to hang on a client

[c.monty]

Hello!

How can I cancel a scheduled test (pts/stream-1.3.1) that seems to hang on a single client?
The test was scheduled for a group that includes 2 clients, and it finished successfully on client A but hangs on client B, but client B is still communicating to Phoromatic server.

THX

[Michael]

If you navigate to the page for that system, should be able to just click 'reboot system'

[c.monty]

Thanks.
This confirms my assumption and actually this is what I have exected to stop a hanging test.
However this is not my favourite solution.

[Michael]

Thanks.
This confirms my assumption and actually this is what I have exected to stop a hanging test.
However this is not my favourite solution.

What would you see as your preferred solution?