I'm getting this failure message in logs sent by the router.
Aug 20 03:20:59 Router local0.debug udhcpc[873]: write the bandwidth successfully!
Aug 20 03:20:59 Router local0.debug udhcpc[873]: open bandwidth_tmp.txt fail
Router: DIR-825 B1
Firmware: 2.00EU
I haven't udate to 2.01EU as the changelog does not say any improvements regarding this failure.
-Sage