If your printer is not connecting to AccelerList even after installing QZ Tray, follow these steps to quickly resolve the issue.
Step 1: Make Sure QZ Tray Is Running
Look at the bottom-right corner (system tray)
Click the ^ arrow to show hidden icons
Check if the QZ Tray icon is visible
👉 If not, open QZ Tray manually
Step 2: Restart QZ Tray
Right-click the QZ Tray icon
Click Exit
Reopen QZ Tray
Refresh AccelerList
Step 3: Allow the Connection Popup
When printing, you should see:
“Allow this site to access QZ Tray”
👉 Click Allow / Trust / Yes
⚠️ If no popup appears, continue below
Step 4: Check Your Computer Date & Time (Very Important)
Go to Date & Time Settings
Turn ON:
Set time automatically
Set time zone automatically
Restart your computer
Step 5: Clear QZ Tray Certificates
Right-click the QZ Tray icon
Click About
Go to Advanced / SSL Certificates
Click Clear / Remove Certificates
Restart QZ Tray
Step 6: Check Your Browser
Use Google Chrome or Microsoft Edge
Make sure popups are not blocked
Advanced Fix: Ensure QZ Tray Runs Automatically on Startup
If QZ Tray is not opening automatically, follow these steps:
🔹 Step 1: Find the QZ Tray Application
Click the Start Menu
Type QZ Tray
Right-click it → Click Open file location
In the folder:
Right-click QZ Tray.exe
Click Create shortcut
🔹 Step 2: Open the Startup Folder
Press Windows Key + R
Type:
shell:startupPress Enter
🔹 Step 3: Add to Startup
Copy the AL Print shortcut
Paste it into the Startup folder
✅ It will now open automatically on login
🔹 Step 4: Set Default Printer
Go to Settings → Bluetooth & Devices → Printers & Scanners
Turn OFF:
Let Windows manage my default printer
Select your printer → Click Set as Default
🔹 Step 5: Allow Through Firewall
Open Windows Security
Go to Firewall & Network Protection
Click Allow an app through firewall
Click Change settings
Make sure AL Print has:
✅ Private
✅ Public
🔹 Step 6: Restart & Test
Restart your computer
Confirm:
QZ Tray opens automatically
Printer is ready
Test print works
Final Check ✅
Before testing again, make sure:
QZ Tray is running
Certificates are cleared
Browser permissions are allowed
Startup is properly configured
👉 Try printing again in AccelerList
One-line summary:
Fix QZ Tray connection issues by ensuring it’s running, properly configured, allowed through the system, and set to start automatically.