Recently my RB2011 has started to randomly power cycle. I’ve attempted to reset the config, I have loaded several different versions of RouterOS but nothing seems to fix the issue. Something strange that I did notice is some of my gigabit ports will not negotiate to 1G. I have tested all the cables and updated all the drivers on the PCs. I am just looking for some additional thoughts and a fresh set of eyes on the issue. Any advice would be greatly appreciated.
If you have a DMM you could test the power supply to verify voltage, but you would have to open the case to easily test the voltage under load.
Update
I took it down to test the power and realized that when the router is normally power cycled it does this series of chirps. So, what I thought was a intermittent power cycle was the wrong description.
So, an accurate description of the issue would be: all the activity lights blink twice, the LCD blinks once, I lose all connectivity and the router logs show all of the interfaces going up and down. So it appears as if the router is power cycling but it doesn’t lose power.
Chirping is usually a sign of a faulty power supply.
I noticed that there is a “Health” window in the RouterOS menus. It indicates 23.9-24.0V and 32C. I tried to google what is considered normal ranges but came up with nothing.
That’s pretty normal, but it’s not going to show you an intermittent problem. I’d replace the power adapter right off, if possible, with one offering slightly more current.
Also, the 2011 has one POE-out port, and a real or illusory power draw on that port may be overtaxing the power adapter.
Thanks for all the input. I have moved the cable out of the POE port and ordered a new power adapter. I will report back once I have the new AC adapter installed and had time to test.
Moving the cable from the POE port did nothing. I disabled it as well without any change. The new power supply did not make any difference either. Further troubleshooting found that whenever a cable is plugged into the second port all the issues start. But I moved the cable to a new port and haven’t had a lick of trouble since. I think the old girl is just dying. I’ve had it for a few years and I guess its time to upgrade/replace.
Are you still getting the chirping sound?
He never got the chirping sound. Read carefully.
I took it down to test the power and realized that when the router is normally power cycled it does this series of chirps.
Read post #3 and understand it.
I know what he said, what I don’t know is if this is normal behavior and if with the new power supply does it still make this noise…
The chirping sound is normal. When you power up the router, it makes a series of chirps.