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If OBS reports an RTMP 404 while connecting to YouTube, first compare OBS’s server address and stream key with the settings for the same broadcast in YouTube Studio’s Live Control Room. Check that you have selected the intended protocol, then look at YouTube’s incoming preview and error messages. YouTube’s help pages do not define “RTMP 404” as one specific diagnosis, so the code alone does not establish what went wrong.
Check the address and key for the correct stream
- Open the intended broadcast in YouTube Studio. Go to the Live Control Room for the scheduled or current stream you want to start, then open its stream settings. Use the values shown for that broadcast, not an address or key copied from an unrelated stream. YouTube’s live stream settings explain where to find the Stream URL and key.
- Compare the server address in OBS with YouTube’s Stream URL. In OBS, open Settings > Stream and inspect the server or URL field. It should match the Stream URL displayed in the selected stream’s Live Control Room. YouTube describes this URL as the destination that tells the encoder where to send the stream feed. Its encoder setup instructions say to copy the URL into the encoder’s server setting.
- Compare the separate stream key. In the same OBS settings, check the key against the one shown for that broadcast in YouTube Studio. The address and key are separate settings; verify both belong to the same intended stream. YouTube’s encoder instructions cover entering the stream key separately.
- Confirm RTMP or RTMPS is configured consistently. If you intend to use RTMPS, use the RTMPS URL revealed by the lock control beside Stream URL in Live Control Room, and ensure OBS is configured for that protocol. YouTube says both the protocol and server should be RTMPS. If the URL is correct but an SSL error persists, YouTube suggests trying port 443. See Encrypt your stream using RTMPS.
- Start OBS and check YouTube’s incoming status. Watch the Live Control Room for an incoming preview and any health or error messages. YouTube’s live dashboard checks for stream errors and displays messages that can guide the next troubleshooting step. See Live streaming error messages.
Make sure the protocol matches the URL
RTMP, RTMPS and HLS are not interchangeable settings. Use the URL generated for the protocol you selected in YouTube Studio and supported by your encoder.
- RTMP: Use the Stream URL intended for RTMP in the encoder’s server field.
- RTMPS: Retrieve the RTMPS address using the lock control beside Stream URL, then configure the encoder for RTMPS. YouTube’s RTMPS instructions describe this setup.
- HLS: Do not paste an HLS address into an RTMP or RTMPS configuration. HLS is a separate setup: select HLS as the stream protocol and use the generated HTTPS URL, with an encoder that supports it. Follow YouTube’s HLS setup instructions.
If the settings match but OBS still cannot connect
Refresh the key only when needed
If you suspect the key is no longer current or YouTube’s encoder troubleshooting points you toward a new one, generate a new key in Live Control Room and update the key in OBS. A refreshed key is a documented troubleshooting step; it does not prove that every RTMP 404 is caused by a bad key. YouTube explains key reset and encoder troubleshooting in Manage live stream settings and Troubleshoot your YouTube live stream.
Use the exact message to choose the next check
Read the error shown in OBS and any status message or health warning in Live Control Room. The official YouTube documentation establishes that the encoder needs the correct Stream URL and key, that RTMPS has its own URL and protocol setup, and that the dashboard displays stream errors. It does not establish a unique cause or special YouTube fix for an OBS “RTMP 404” message. Avoid treating the code alone as proof of a bad key, account issue or particular endpoint problem.
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#1 Best Overall
Elebase USB to USB C Adapter for iPhone 18 Pro Max,USBC Car Charger Adapter
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Or let it run in the cloud
If your goal is to keep uploaded videos playing as a 24/7 YouTube stream, StreamNeo is a cloud option: upload a recording or build a playlist, add your YouTube stream key, and go live. Nothing has to stay on at home. Each slot streams your upload as made, up to 4K 60fps, at one price per slot; it automatically recovers if YouTube drops the stream. The first day is free with no card. Monthly pricing is $9.99 per month.
Quick Recap
Bestseller No. 5
Best Value
Anker USB C Hub, 5-in-1 USBC to HDMI Splitter with 4K Display
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
Sale
UGREEN USB to USB C Adapter Combo 4-Pack, 10Gbps USB C Converter Space Gray
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Rank #3
Sale
Anker USB C Hub, 7in1 Multi-Port USB Adapter, 4K@60Hz USBC to HDMI Splitter
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Rank #2
Anker USB-C Hub, 5-in-1 USB Hub for Laptops, 4K HDMI Multiport Adapter
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
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