I've been using tomato-K26USB-1.28.RT-MIPSR2-104-AIO.trx for about 3 days without any issues, but today after web UI reboot the router entered a boot loop.
Any attempts to unstuck the device has failed so I resorted to reflashing the same firmware. After doing the thorough NVRAM clear I attempted a web UI reboot which once again put the device into boot loop.
I downgraded to tomato-K26USB-1.28.RT-MIPSR2-102-AIO.trx which appeared to be working fine.
Next I once again attempted to flash tomato-K26USB-1.28.RT-MIPSR2-104-AIO.trx which put the device into boot loop immediately this time (the router never started up properly after the flash).
Now I'm back to 102 which seems to be again working properly. (including web UI reboot)
I never touched any of the advanced setting like over/underclocking, torrent client, VPN. And I never connected any USB device to the router.
Any idea what could be the problem here?