I think i have solved it. Will know for certain in a bit more then a
Apparently aiccu goes off the track when the system time is more then a
certain amount of seconds off. At least with the clock off more then 145
seconds it will refuse to start.
When the situation occurs while it is running, it apparently kills the
IPv6 routing. As my network is dual-stack and a lot of workstations are
indeed dual stack, this causes significant delay on any browsing, as it
needs for IPv6 to time out.
I've now added an ntp server to the setup.
What bugs me is that a reboot would solve it. So apparently the hardware
clock remains OK, and only the system time goes off.
Now if this behaviour were somewhere documented... Once you know what
the problem is, you can find it.
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