I had upgraded my ISY-99i to the latest 2.8.10 beta release. I may have missed a step when I originally upgraded. It hasn't worked very good ever since. I have since done many factory resets and attempts to reinstall the firmware. Each time I completely follow the instructions and try to reinstall the firmware, it now presents me with the following error:
Upgrade Failed :Failed uploading file (reported written size is invalid)
I have tried several attempts to correct it, all without success. If I log in via telnet, it reports to me that version 2.8.10 is installed. I have also tried downgrading to earlier versions, all presenting me with the same error. Is there some other way I can install a previous (stable) version? All I want is my ISY-99i to work again. I don't quite understand why I get that error every time I attempt to reinstall firmware now.