Here’s a full help desk article draft version of your message — clearly structured for your Intercom or knowledge base format, and integrating the official NinjaTrader reference link:
⚠️ Before You Begin
Make sure NinjaTrader 8 is completely closed before performing any of the steps below.
To confirm it’s fully closed:
Right-click your taskbar → select Task Manager.
End any running processes named NinjaTrader.exe or NinjaTrader 8 (32-bit).
Once confirmed, proceed with the steps below.
Step 1: Sync Your System Clock
Incorrect system time is one of the most common causes of login loops and CAPTCHA failures.
Right-click the clock in the bottom-right corner of your Windows desktop.
Select Adjust date and time.
Make sure Set time automatically is ON.
Scroll down and click Sync now under “Synchronize your clock.”
Wait for confirmation that it says:
“Time was successfully synchronized.”
✅ Once complete, reopen NinjaTrader 8 and try logging in again.
Step 2: Flush Your DNS Cache
If the issue persists, your DNS cache may be pointing to an outdated authentication endpoint. Follow these steps to refresh it:
Close NinjaTrader completely (as above).
Open the Start menu, type cmd, right-click Command Prompt, and choose Run as administrator.
Type the following command and press Enter:
ipconfig /flushdns
You should see a message confirming:
“Successfully flushed the DNS Resolver Cache.”
✅ Now try launching NinjaTrader again and log in.
If you continue to see CAPTCHA prompts or endless loading screens, review NinjaTrader’s official article for additional guidance: