3.9 HotSpot PC rebooting unexpectedly

I’ve been running a WISP for a few months now, using HotSpot on a PC with RouterOS 3.9 level 5 (3.7 a week ago, and 3.3 a month before)
Today (for the first time) it rebooted all by itself, don’t know why!
There’s no script nor schedule to do that.

It must be related to other thing that’s been happening for some time now: PC disappears from other mikrotiks neighbor list. And after that, you can’t get into the PC via Winbox. Only by Telnet. And then, HotSpot users can’t log in anymore, and some of the logged ones can’t browse the web anymore. If you reboot, everything goes back to normal.

Let me show you parts of its log:


script,info PC dissapeared from neighbor list in 20-May 19:10:52.96 (Have a script checking this from a neighbor)

hotspot,error,info,debug failed to add simple queue for interface BridgeHS: already have such name (6) in 20-May 19:15:33.54

And then many lines like this (different users, nobody can log in fro a while):
hotspot,error,info,debug Chango (192.168.10.23): internal error: login failed: failed to add queue: already have such name (6) in 20-May 19:15:34.87

Then some users CAN log in:
hotspot,info,debug Diego (192.168.10.54): trying to log in by cookie in 20-May 19:16:35.31
hotspot,account,info,debug Diego (192.168.10.54): logged in in 20-May 19:16:35.32

Then SYSTEM CRASHES and reboots by itself:
may/20/2008 19:16:26 system,error,critical router was rebooted without proper shutdown

And then everything is back to normal!


What should I check?
How can I better see what’s happening?

Need more data to help? Please, ask me!

Thanks in advance!

Chofo

Try to generate support output file after reboot. Contact MikroTik support [support@mikrotik.com] with attached file.