Chzzk OBS Setup Guide: RTMP Settings, 1080p Streaming, Common Errors

Why OBS is the default for Chzzk

Chzzk launched as Naver's answer to Twitch's Korean withdrawal in 2024, and by 2026 it ships first-class support for OBS Studio, Streamlabs Desktop, and Restream — but OBS remains the de facto choice because of its plugin ecosystem, free price, and identical workflow to Twitch and YouTube. If you already stream elsewhere, the only thing changing is the RTMP endpoint and key.

Step 1: Install OBS Studio and issue your stream key

Download OBS Studio from the official site (obsproject.com) — version 31.x or later supports HEVC encoding on RTX 40-series GPUs which Chzzk now accepts. Install with default options.

On Chzzk: log in → 스튜디오 (Studio) → 방송 설정 (Broadcast settings) → 스트림 키 (Stream key). Reveal and copy. Treat this string like a password — anyone with it can stream to your channel. Reissue immediately if it leaks.

Step 2: RTMP URL and key in OBS

In OBS: File → Settings → Stream. Service: Custom. Server: rtmp://rtmp.chzzk.naver.com/live (check the Chzzk Studio page for the latest endpoint — Naver occasionally rotates regional ingest URLs). Stream Key: paste from the previous step. Click Apply.

Step 3: 1920×1080 video settings and bitrate

Settings → Video: Base (Canvas) Resolution 1920×1080, Output (Scaled) Resolution 1920×1080, FPS 60 (for gaming) or 30 (talk / mukbang). Downscale filter: Lanczos.

Settings → Output → Streaming. Encoder: NVENC HEVC if you have an NVIDIA RTX card, otherwise x264at preset "veryfast". Bitrate: 6,000 kbps for 1080p30 and 8,000 kbps for 1080p60. Keyframe interval 2 seconds. Profile high. Rate control CBR.

Step 4: Common errors and fixes

"Failed to connect to server": 90% of the time this is an outdated stream key. Reissue in Chzzk Studio and paste again. The other 10% is a Windows firewall block — allow OBS through Windows Defender.

"Encoding overloaded" (yellow OBS indicator): drop preset from "veryfast" to "superfast", or switch from x264 to NVENC. CPU can't keep up at high bitrates without hardware encoding.

Frequent disconnects: run an upload speed test — sustained bitrate must be ≥1.5× your encoder bitrate. WiFi causes intermittent drops even at high speeds; switch to ethernet. If you stream over LTE/5G hotspot, drop to 4,500 kbps.

Optional: RODE Streamer X capture card

For console gamers or DSLR cam setups, the RODE Streamer X is a popular 2025-launched UVC capture device that handles 1080p60 with sub-frame latency and routes audio through a built-in mixer. Plug it in, add a Video Capture Device source in OBS, select "Streamer X", and you're live. No drivers required on Windows 11 or macOS Sequoia.