[
    {
        "role": "user",
        "content": "how%20do%20i%20get%20port443%20on%20my%20computer%20to%20allow%20me%20to%20use%20jaws%20tendem%20to%20access%20another%20compter.%20port%20443%20is%20open."
    },
    {
        "role": "assistant",
        "content": "Here\u2019s a step-by-step guide to troubleshoot and configure your computer so that JAWS Tandem can connect over port 443. Even though port 443 is \u201copen,\u201d the connection still requires more than that. Please walk through these steps to identify and fix common issues.\n\n---\n\n## What to check first\n\n1. **JAWS Tandem documentation / system requirements**  \n   JAWS Tandem needs outbound access to certain servers, and possibly inbound access on port 443 depending on how your network is set up (especially if behind a firewall or proxy). Confirm whether your setup requires certificate forwarding, relay servers, etc. Freedom Scientific support may have specific ports or server addresses listed.\n\n2. **Is there actually a service listening on port 443 on your machine?**  \n   Even if the firewall permits port 443 inbound, there must be a server or service bound to that port. Use `netstat -an` on Windows (in an elevated command prompt) to check for `LISTENING` on `0.0.0.0:443` or your local address for port 443. If nothing is listening, the port is open but nothing responds. ([superuser.com](https://superuser.com/questions/1620709/after-opening-port-443-in-windows-firewall-as-inbound-rule-i-cannot-see-it-when?utm_source=openai))\n\n---\n\n## Windows Firewall configuration\n\nAssuming you're using Windows and need to create or verify rules:\n\n1. **Open Windows Defender Firewall with Advanced Security**  \n   - Start \u2192 type *\u201cWindows Defender Firewall with Advanced Security\u201d* \u2192 enter.  \n\n2. **Create or review Inbound Rule for port 443**  \n   - In left pane: *Inbound Rules*  \n   - In right pane: *New Rule\u2026*  \n   - Select *Port* \u2192 Next  \n   - Choose *TCP* and enter **443** as the local port \u2192 Next  \n   - Select *Allow the connection* \u2192 Next  \n   - Choose which profiles to apply (Domain, Private, Public) \u2192 Next  \n   - Give the rule a name (e.g. \u201cAllow HTTPS / Port 443 for Tandem\u201d) \u2192 Finish ([support.secpod.com](https://support.secpod.com/support/solutions/articles/1060000084665-configuring-windows-firewall-to-allow-port-443-ping-requests-and-access-to-saner-secpod-com-for-sea?utm_source=openai))\n\n3. **Check for conflicts or overrides**  \n   - If your machine is in a corporate domain, group policy may override firewall settings.  \n   - Check if third-party security software or a network firewall is also blocking or filtering port 443.  \n\n---\n\n## Network and router/firewall settings\n\nIf your computer is behind a router, NAT device, or an external firewall (e.g. in a corporate network or when on WiFi/campus/etc.):\n\n- **Port Forwarding / NAT**  \n  If you want someone outside your local network to reach your computer via port 443, you\u2019ll need to set up port forwarding on the router/firewall to send external port 443 traffic to your computer\u2019s internal IP.  \n\n- **Check external firewall / router rules / IPS / IDS**  \n  Some corporate or ISP firewalls may block or inspect port 443 traffic (especially if using SSL inspection), which can interfere with remote tools like Tandem.\n\n---\n\n## Other potential blockers\n\n- **Proxy servers** \u2014 If your computer or network uses an HTTP/HTTPS proxy, the proxy must allow suffixes or domains used by JAWS Tandem.\n\n- **SSL/TLS inspection** \u2014 If port 443 traffic is being intercepted by a system that inspects SSL certificates (a \u201cman-in-the-middle\u201d), Tandem might fail if certificate validation fails.\n\n- **VPNs** \u2014 If you're connected via a VPN, there may be additional rules in place or split tunneling that doesn\u2019t pass certain ports.\n\n---\n\n## Testing after changes\n\n1. **From your own computer**  \n   Use commands like `telnet localhost 443` (if enabled) or `netstat -an` to confirm port 443 is listening.  \n\n2. **From another computer**  \n   On a different machine (outside your network if required), attempt to connect to your \u201cpublic\u201d IP or over the internet (if port forwarding is set up). If that works, Tandem should be able to connect.  \n\n3. **Logs & error messages**  \n   Look at logs in JAWS Tandem (if available), Windows Event Viewer, or firewall logs. You may see entries like \u201cconnection reset,\u201d \u201ccertificate error,\u201d or \u201cblocked by firewall.\u201d\n\n---\n\nIf you want, I can walk you through the exact rule-names and server addresses for JAWS Tandem, or help you check if your network\u2019s proxy or VPN is causing the issue. Would you like me to pull up those specifics for Tandem?"
    },
    {
        "role": "user",
        "content": "yes"
    },
    {
        "role": "assistant",
        "content": "Here\u2019s what I found about the specific *port numbers*, *addresses*, and *programs* that need to be allowed/whitelisted so that JAWS Tandem works correctly. I also included settings you\u2019ll want to check on both sides (your computer and the other computer) plus firewall / network rules.\n\n---\n\n## Key addresses, ports, and programs for JAWS Tandem\n\n| Component | Host / Program | Port(s) | Notes |\n|---|---|---|---|\n| **Tandem Center server (for \u201ccentral\u201d or relay sessions)** | `tandem.freedomscientific.com` | TCP port **12000** | All controller (helper) and target computers need to be able to reach this for relay sessions. ([jfw.groups.io](https://jfw.groups.io/g/main/topic/jaws_tandom/207612?utm_source=openai)) |\n| **Tandem Direct listener (on the target machine)** | \u2014 | Default TCP **port 3000** | If you\u2019re doing a direct connection (not through the Tandem Center), the *target* computer listens on this port by default. You can change this port in the Tandem \u201cAllow Access to My Computer\u201d dialog \u2192 **Options**. ([jfw.groups.io](https://jfw.groups.io/g/main/topic/jaws_tandom/207612?utm_source=openai)) |\n| **JTTarget.exe** (the Tandem \u201ctarget\u201d side executable) | Program name to allow through firewall on target computer | \u2014 | The program must be added to Windows Firewall's exceptions on the *target* system, not necessarily on the controller. ([tecassistiva.com.br](https://tecassistiva.com.br/wp-content/uploads/2019/05/jaws_guia_rapido_tandempt-BR.pdf?utm_source=openai)) |\n\n---\n\n## Specific firewall / Windows settings to check and configure\n\n### On the target computer (the one being controlled)\n\n1. **Allow JTTarget.exe through the firewall**  \n   - Open *Windows Security* \u2192 *Firewall & network protection* \u2192 *Allow an app through firewall*  \n   - Click \u201cChange settings,\u201d find *JTTarget.exe* (part of JAWS Tandem installation), ensure both **Private** and **Public** networks are allowed. If it's not listed, use *\u201cBrowse\u2026\u201d* to locate it (usually in the JAWS program folder) and add it manually. ([tecassistiva.com.br](https://tecassistiva.com.br/wp-content/uploads/2019/05/jaws_guia_rapido_tandempt-BR.pdf?utm_source=openai))  \n\n2. **Open inbound port** (if doing Tandem Direct)  \n   - Since port 3000 is the default listener port for direct Tandem sessions, if the target is behind a firewall/router or has firewall rules blocking it, you\u2019ll need to explicitly open this port inbound for TCP or whatever protocol Tandem uses.  \n   - If you changed the port via Tandem\u2019s *Options*, open that custom port instead. ([jfw.groups.io](https://jfw.groups.io/g/main/topic/jaws_tandom/207612?utm_source=openai))  \n\n---\n\n### On the controller computer (the one connecting to another)\n\n- You generally don\u2019t need permission for JTTarget.exe, since that runs on the target. But you **do** need to allow outbound traffic to the **Tandem Center server** (if using the relay service), which is `tandem.freedomscientific.com` on port 12000. If your firewall is blocking outbound connections (or you\u2019re behind a proxy), make sure that address and port are allowed. ([jfw.groups.io](https://jfw.groups.io/g/main/topic/jaws_tandom/207612?utm_source=openai))  \n\n---\n\n## Network / Router / External firewall settings\n\nIf either computer (especially the target) is behind:\n\n- **A NAT router**: set up port forwarding so that external (controller) connections to the target can reach port 3000 (or whatever port set under Tandem Direct).  \n- **A corporate firewall or VPN**: you may need to work with your IT department to allow traffic:\n  - Outbound or inbound TCP port **12000** to `tandem.freedomscientific.com`\n  - Inbound TCP port **3000** (or custom port) to the target system, plus allowing the JTTarget executable.\n\n---\n\n## Summary of what to do\n\n1. On *target*:\n   - Confirm port 3000 (or your custom port) is listening via Tandem\u2019s \u201cAllow Access\u2026\u201d Options menu.\n   - Add JTTarget.exe to Windows Firewall exceptions.\n   - Open that port for inbound TCP traffic.\n\n2. On *controller*:\n   - Ensure outbound access to `tandem.freedomscientific.com` on port 12000.\n   - If doing direct connection (skip Tandem Center), ensure you know the correct IP/hostname of the target and the custom port, and that your firewall lets you reach it.\n\n3. Across network/internet:\n   - Ensure NAT / port forwarding if necessary.\n   - Make sure any hardware firewalls or routers don\u2019t block needed ports (12000 and 3000 or custom), and look at any proxy / SSL inspection settings if present.\n\n---\n\nIf you tell me your version of JAWS Tandem (for example: 2024, 2025, etc.), and whether you're trying a **Tandem Center** session or **Direct** connection, I can give you step-by-step exactly based on your setup."
    }
]