So, I pulled my doser 2.0 out of storage for my son's tank and I can't upgrade the firmware. I have it connected to a PC and I've downloaded the latest Control Center version, but when I actually get the unit to start the firmware upgrade, it will eventually complete the upgrade, but it still shows version 1.43. I've tried every single usb port on the PC and have tried all of the three versions that are available. I submitted a ticket with GHL, but I've only heard back from them once. I can see the static IP on my router, so the wifi is good on the unit, but I can't add the doser to MyGHL app or browser. I know this is off topic, but I still can't understand why GHL doesn't offer the Control Center app in Mac OS? At this point, I have a paperweight and can't use the doser. I really love the hardware, but why does GHL make it so difficult for users and make their main app PC only? Anyway, if anyone who has the 2.0 and had similar issues or can provide any guidance, I would really appreciate it. I really, really want to use this doser.