Router is on 7.5. When I try to upgrade from winbox, it downloads, router restarts. Lights all come up, but I cannot access it by ethernet. I have to power cycle it to access it. When I get back into it, it is still on 7.5. I have also dragged the firmware file into the file section and rebooted the router. Same thing. I have always been able to upgrade this router using winbox until now.
Any suggestions?
I have one I can’t upgrade past 7.4.1 because it says there’s not enough room (yet there was room to put 7.4.1 on there up from 7.2…).
Have you tried a fresh install with NetInstall? The one I have is up on an inaccessible mountaintop covered with snow, so I’ll have to wait until June to get to it.
Use serial console and netinstall so that you’ve got a clean install.
Any time you get into odd behavior with loading the OS and loss of connectivity on the ethernet ports from a failed upgrade, it’s time to netinstall.
Here is the step-by-step guide: