Hi Russell, I can't say I've ever seen a similar problem, except for when the router itself is sitting at 100% CPU usage. Can you access the device via the web? Could there potentially be a firewall rule that's adding you to a block list? I know dynamic firewall entries are cleared out on reboot. Regards, Ben -----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Russell Hurren Sent: Thursday, 28 September 2017 19:42 To: MikroTik Australia Public List <public@talk.mikrotik.com.au> Subject: [MT-AU Public] Can't connect through Winbox/Dude I have an intermittent problem where some routers stop allowing Winbox or Dude connections. At the moment I have a CCR1009 at a client site that's working perfectly and I can ssh into it, but I can't use Winbox or the Dude. If I reboot it, it'll come good (but I'll have to do that late at night). I've had some x86 routers do the same thing. I can't see anything obvious in the logs or active connections. The problem occurs with multiple different ROS versions. Does anyone have any suggestions for troubleshooting this? Thanks Russell _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au