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If TradeStation keeps disconnecting on your VPS, the steps below, allowing TradeStation through Windows Firewall, flushing your DNS cache, and checking for server-side outages, resolve most cases.
Step 1: Add TradeStation to Windows Defender Firewall
- Open Windows Defender Firewall.
- Click "Allow an app or feature through Windows Defender Firewall" (on the left panel).
- Click "Change settings", then "Allow another app…".
Click "Browse" and navigate to:
C:\Program Files\TradeStation\bin
- Select the TradeStation executable file (TradeStation.exe or the relevant application file).
- Check both Private and Public networks.
- Click OK to save changes.

Step 2: Flush DNS Cache
- Open Command Prompt as Administrator.
Type the following command and press Enter:
ipconfig /flushdns
Step 3: Rule Out a Server-Side Outage
Not every disconnection is caused by your VPS. Before troubleshooting further, check whether the issue is on TradeStation's end:
- Check TradeStation's Service Status page for any reported outages.
- Open your VPS's Monitoring tab and review the network graph for the time of the disconnection.

Step 4: Still Disconnecting?
If disconnections continue after completing the steps above:
- Confirm your antivirus or third-party security software isn't also blocking TradeStation (Windows Defender Firewall is only one layer).
- Restart your VPS to clear any stuck network sessions.
- Open a support ticket with the approximate time of the disconnection so we can check your VPS's connection logs.
Need Assistance?
Our support team is available 24/7. If you have any questions or run into issues, open a support ticket from your QuantVPS dashboard and we'll get back to you as quickly as possible.
Still need help? Our team answers 24/7.
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