No Connection, Please Help!

Roasting on the Bullet
1

Screenshot 2026-08-07 at 17.16.00
Screenshot 2026-08-07 at 17.16.001874×1478 154 KB

Hi, I frequently run into this issue, and what frustrates me the most is when it happens while a roast is in progress
and I have to restart the app just to monitor the roasting process again; I’ve tried swapping cables, but that didn’t solve it.
Has anyone else experienced this? Did you find a solution?
Hopefully, the Aillio team has a fix for this.

I’m using a Mac Mini M4 with a USB Type-A to Type-C adapter.

2

@jedsadazisz may you help me? i dont know what must to do

3

Hi @jadingopi

If you are using a Bullet R1, you may try updating to the latest firmware version using the link below:

Bullet R1 Web Updater
Please make sure to close RoasTime before connecting, as RoasTime uses the same USB port.

You will need to contact the Aillio Support Team to get the password required to access the web updater. They can also help check the issue, as it might be related to the hardware or USB port.

[email protected]

Thanks!

4

Also having this issue on a Mac using an adapter, however on an allio bullet r2 pro.

5

I’m having the same on-going issue. The SW team has been helpful but I’m still having issues. I run on a windows machine. Very frustrating. It started when I upgraded to V4.14.3.

6

I can’t use roastime on my windows machine either, V4.14.3, no reply to my request for access to the updated firmware.

Last roast was 10/7, had to do it blind. Still no fix.

Is there a way to get access to the previous roast time version that wasn’t broken?

7

Hi @retsofekaj6pa9 . Could you please open Device Manager and check if the Aillio Bullet Roaster appears under Ports (COM & LPT) or Universal Serial Bus controllers?

  • If it’s under Ports: In RoasTime, open the status dropdown, click Use next to Serial, and restart RoasTime.
  • If it’s under Universal Serial Bus controllers: Click Use next to libusb in the RoasTime status dropdown, then restart RoasTime.

image
image828×604 39.6 KB

Screenshot 2569-10-15 at 14.20.02
Screenshot 2569-10-15 at 14.20.02908×734 48.4 KB

If it still doesn’t work, please try this:

  1. Open PowerShell.
  2. Copy and paste the following command, then press Enter:
Remove-Item "$env:TEMP\roastime-comms\driver" -Force
  1. Restart RoasTime and check again.

Please let us know if this fixes the issue. Thanks!

8

I have the same problem using Linux. The Bullit is shown when i list usb ports, but won’t connect. Also, Roastime shows updates ready, but doesn’t update. Aillio support is engaged, but hasn’t given me a workable solution yet, So far I’ve had to do far more manual roasts that using Roastime. I am about ready to put the Bullit up for sale and buy a Kaleido.

9

My Bullet is listed under “Other Devices”

Devices Bullet
Devices Bullet448×532 72.3 KB

I tried both Serial and libusb anyway, but neither worked. I then tried the powershell command, and restarted roastime, but hat also did not work.

10

I have the same issue on the R2, using mac, running Sequoia.

11

Hi @retsofekaj6pa9,

Could you please try these steps to resolve the connection issue between your Bullet and RoasTime?

Step 1: remove the old drivers

  1. Connect the Bullet to the Windows PC with the USB cable and power it up.

  2. Open Device Manager (type “Device Manager” in the Windows search bar), and choose View > Show hidden devices.

  3. Look under “Universal Serial Bus devices”, “Universal Serial Bus controllers”, “Ports (COM & LPT)” and “Other devices” for every entry named “Aillio” or “Unknown USB Device”, including the greyed-out ones. There may be several.

  4. For each one, right-click it, choose Uninstall device, tick “Delete the driver software for this device” if the option is there, and confirm.

  5. Unplug the USB cable and the power cable from the Bullet, wait about 30 seconds, then plug both back in and power it up.

Step 2: install the driver with Zadig
Please see Troubleshooting Connection Issues | Aillio Docs

  1. Open Zadig, select Options, and make sure “List All Devices” is checked
  2. In the device list, select the “Aillio LTD…” entry. If there is more than one, choose the one that ends with “1”.
  3. Select WinUSB as the driver and click “Replace Driver” (it may say “Install Driver”).
  4. When it has finished, unplug and replug the USB cable, then open RoasTime.

Please use Zadig for this instead of the “Re-Install” button in RoasTime, which our software team is fixing at the moment.

When the driver is installed correctly, Device Manager shows the Bullet as “Aillio LTD- Bullet R1 ROASTER FS” under “Universal Serial Bus devices”

Please let me know whether this resolves the connection issue