Created Internet Streaming Errors (markdown)

Internet-Streaming-Errors.md

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+# Connected through another router error
+If you get this error, it usually means you have two routers plugged into each other. This is usually caused by having your own wireless router plugged into a router already provided by your ISP.
+
+You can fix this by switching one of your two routers into bridged or Access Point mode. The steps to do this vary by router, but you should be able to find them by Googling around a bit.
+
+If you can't fix this, you can try using the [ZeroTier setup steps](https://github.com/moonlight-stream/moonlight-docs/wiki/Setup-Guide#zerotier) instead.
+
+# Carrier-Grade NAT error
+If you get this error, your ISP hasn't given you a public IP address which allows you to host services like Moonlight on the Internet. In many cases, your ISP will be happy to give one to you for free if you just ask.
+
+If your ISP won't give you a public IP address, you can try using the [ZeroTier setup steps](https://github.com/moonlight-stream/moonlight-docs/wiki/Setup-Guide#zerotier) instead.
+
+# Internet GameStream connectivity check error
+This error usually means your router doesn't have UPnP enabled. Some routers have bugs where UPnP doesn't work properly, so you may check your router manufacturer's website for a firmware update for your router that could fix it.
+
+This error may also be caused by a firewall product on your host PC blocking the Internet Streaming Helper from talking to your router. Try disabling your PC's firewall temporarily to see if that's the cause.
+
+If you can't fix this error, you can try using the [ZeroTier setup steps](https://github.com/moonlight-stream/moonlight-docs/wiki/Setup-Guide#zerotier) instead or you can [forward the ports manually](https://github.com/moonlight-stream/moonlight-docs/wiki/Setup-Guide#manual-port-forwarding-advanced).