Hi! > I have stack 3750G-48TS-S with c3750e-ipbasek9-mz.150-2.SE4 > > After rebooting I got this message > > “Failed to send hrpc non-blocking message” Read this here: https://supportforums.cisco.com/thread/2139626 > just a symptom of some other root cause. Do you have link flapping? Regards, Lukas