Log help - what do these entries mean?

this may be a dumb question… can someone help me understand what is happening? The port is a connected to the modem which is not dropping.

Thanks in advance.

Check the cable…

Unplug and re-plug the cable, you’ll see the same message.

thanks for the reply - it seems to happen every 30 mins? Is the interface failing on the router?

It could be a bad cable, some kind of incompatibility between routers, or a bug.

Which routerboard it is? RouterOS version? Firmware version?

Ah - that would have been good info -

RB2011UiAS
ROS - 6.29
Firmware - 3.22

That port is connected to a Charter cable modem. I suppose it could be the modem - I just have never seen it do that kind of thing.

As I check the logs it is still going on. I would suspect it is not the cable, and I would think would either work or not, but stranger things have happened.

Thanks for helping.

Greetings from a fellow Charter Cable user.
Check your modem’s log at http://192.168.100.1/ it may show you what’s going on. There is a chance that you are getting T3/T4 timeouts that are causing the modem to reboot. Most common problems that I’ve seen with cable are Signal Levels out of spec, a failing power supply. If the modem is really hot, it may be signal issues. Hope this helps.

Thanks Dave!