Well, I noticed the dBm was set to 17 and I thought that was a little low for my 500 mW card. I probably shouldn’t have set it to what I did because now I’m tapping my 3.3v and causing my routerboard 532 to go into a reboot loop.
If I take my card out I can get it to boot after some tinkering with the reset buttons, but I can’t change the dBm back down to 17 because the card isn’t listed.
How can I fix this horrible mistake without resetting my router to default? I have a lot of settings that I don’t want to start over with including a lot of hotspot users and a special mangle setup that uses 2 ISPs to get a more reliable connection.
I’ve searched the forums and google for a few hours and have come up with nothing. Thanks for your help.
Greetings!
Is your power supply providing enough current? Sounds like it might be a low voltage reboot.
If you are using the Ubiquiti SR2/XR2 cards, the power setting is 10db offset. So for 27db output (500mw), the power setting in the wireless section should be set at 17db.
I guess I could try a different power supply but I really think it’s just drawing too much current for any power supply. If it does have that 10 dBm offset then I have it WAYY over powered. I have it set at 27 dBm (or 26) but if it’s got a 10 dBm offset it’d be at 36 or 37 which is crazy high for that little card.
Whatever the case I think the only solution would be some command line hack because the card’s don’t show up in the winbox interface when they are not connected. And I can’t get in to lower the dBm when they are connected because the router reboots after about 15 seconds (not enough time to even start a connection.
Any solutions, or am I just stuck?
I have not tried this. Use at your own risk.
Maybe you can get away with booting it up without the card, then backup that setup. Then reset the router, and restore the setup without the wireless card. That way when you insert the card and boot, the power setting should be reset. All that should need setup is the wireless card.
ADD: You also might want to check the history. Maybe you can back off that last change without the card inserted.
/system history print
Undo changes with
/undo
Redo undone changes with
/redo
/export file=myconfig
(download myconfig to your laptop)
/system reset
(edit myconfig in notepad or vi/emacs/nano)
(upload the config to your clean router)
/import file=myconfig
and it works! 
Yeah I got it fixed. I bet that method would work too.
Here’s what I did.
Took out the two cards, played with the reset buttons and power cycled it until I got it booting.
Login in and did a system backup then a system reset. Next I powered down my router, plugged in both cards, and booted my router back up. They showed up in the wireless menu of winbox. Next I did s system restore from the terminal window and went to my wireless cards and put the power back at default (which is 17 dBm).
That’s it! Now I’m back up and running with everything the way I had it. Thank god (and whoever helped me).