Find out what's blocking port 80 / 443 on Windows and stopping Qlik services from starting (2024)

FAQs

How do I unblock port 80 and 443? ›

Traffic Blocked by Firewall

If you cannot establish any HTTPS connections, your firewall may be misconfigured and blocking port 443. Double check that outbound port 443 connections are permitted in your firewall policies and that there are no IP or domain restrictions in place.

Port scan from your machine to see if the port is accessible. Check the windows firewall to see if spiceworks is allowed out on 443. This should show if spaceworks is running on 443 or if something else is and what IP it is bound to… Check the spiceworks service is running and the log files.

Check if port 443 is open:

On Windows: open the Command Prompt on your Windows machine > type telnet <IP address or domain name> 443 and press Enter. If the command returns “Connected to <IP address or domain name>”, then port 443 is open.

Here's how to allow port 443 in Windows Firewall: Open the Firewall Control Panel by accessing “Start” > “Run“. On the left pane, select “Advanced Settings“, then click on “Inbound Rules” in the top-left corner. Next, click on “New Rule” on the right-side panel in the “Action” column.

How do I allow traffic to port 443? ›

Select “TCP” > “Specific local ports,” and type in “443” next to it. In the “Action” window, select “Allow the connection” and click “Next.” In the “Profile” window, choose “Domain” > “Private,” and click “Next.” In the “Name” window, type in “WCF-WF 4.0 Samples” and click “Finish.”

Open the diagnostic tool, netstat -ano. This tool will list the PID (Process Identifier) that is listening to port 80. Open the Task Manager's Processes tab.