I’m running a RB450G. It initially had 3.30 on it, but I upgraded to 4.10 last month and then upgraded to 5.0beta3 this past week.
Ever since the upgrades to 4.10 and 5.0b3 I’ve seen the RB450G simply shut off and restart. With 3.30 I never had this issue at all.
I’ve been scrounging the forums and notice talk relating to it being a possible power supply issue, but I do find it strange that I’ve seen the restarts only after the upgrades. There is even mention in the release notes for 4.x and 5.x that indicate fixing stability issues on the RB400 series.
With that in mind I’d switch back to 3.30 just given the mention of stability issues, but in the past month I’ve also gone and had a kid and this has pushed up electricity usage in the house and power isn’t exactly smooth and clean over here. I can’t therefore ignore a possible power supply issue.
The health check shows voltage of 11.3V.
Has anyone experienced random shutdowns with v4.10 and/or v5.0b3 on the RB450G or is it always just a power supply issue?
Power is always an issue, as it is the starting point for all electron flow through any Electronic Device.
Although 4.10 is marked as stable, all software is subject to field testing, which is what you do by downloading and installing it these days. Blame MicroSoft for making this so.
You are the Beta, or even Theta tester.
By using Beta firmware v5x, you must agree to the notion that you understand Release types, and agree to accept bugs. It’s a Beta.
v4.10 isn’t Beta anymore, but still, you must accept the possibility of bugs.
All i can ask is that if v3.30 was working fine, WHY did you upgrade ?
almost forgot.
Congratulations to you an the Mrs on the Kid !
Thank you. As you can probably tell from the time on this post, someone is keeping me up at night.
I think the issue here is power, by the way. While busy with winbox today I spotted the voltage in the health window dip to 10.6V which would seem a little low for a 12V supply. Probably sufficient for the routerboard, but I’m sure at times it dips lower than that. I’m going to get a Sunpower or Meanwell PSU (12V/5A) as I intend to pack the RB and other network kit into a chassis and they’re all run off 12V. That should get rid of the cheap wallwarts.
Sorry, I didn’t reply to your first post.
Reason I upgraded was some silly things really. For one, switch option didn’t seem to be available to me 3.30 and I wanted to try it out. Bridge through firewall was also acting up. Simple issue with writing to the log was odd and I use that for some script outputs/debug.
But things have become a little more interesting. My wife was on the phone a moment ago (it’s what women do) and the RB450G cycled, but at the same time the phone base station dropped the call. They’re not connected at all except for sharing a phone socket, but that goes through a DSL modem. Ofcourse they share a power socket and the only new “team member” is a networked HP printer/fax which shares power socket and phone socket.
So I don’t know. Perhaps I have filthy power or dodgey plug, but I’m going to replace all the wallwarts with a 12V PSU and get a small UPS to filter noisy power supply. I can see 4 wallwarts which can head to the bin. I hate those things.
A little update. I downgraded from 5.0b3 to 3.30 again. Stupid me reset and wiped out my openwrt metarouter install, but no biggie. What I did notice in 3.30 though is that the health check reports 12.5V. 4.10 and 5.0bX report 10.6V-11.3V. Wondering which one is metering correctly. Will see whether the RB with 3.30 still power cycles randomly.
Well the thing kept power cycling so it turned out to be cheap-ass power adapter the mikrotik distributor pushes. I went overkill on it and bought a Mean Well 75W 12V PSU and wired it up on saturday without burning the house down or electrocuting the on-looking dog. So far, 2.25 days solid uptime, voltage remains a steady 11.2V on the RB450G and output on the PSU is 12.08V.
Now to find replacement matching connectors for all the other 12V power adapter litter and get them using the remaining portion of that 75W. How I do wish they invented just 1 barrel plug size and design. 
Hi, i know it has been a while since your posting, but can you let us know the distributor/brand of power supply you were using so we can steer clear?
I am thinking of using a 12v supply i got with some other equipment. Any idea about how much power draw the unit needs? volts and amps that is.
Thanks
Sam