Day-One Update Slow
Switch 2 Day-One System Slow Update Stuck Taking Forever
⚠️ Important Warning
Apply these solutions with caution.
Refer to official manufacturer website for authoritative information. For reference only.
Official Solution
Nintendo's support page states a very slow or stuck day-one update is usually network-side congestion; they advise restarting the console, then running the update again over a 5 GHz Wi-Fi or USB-LAN adapter.
Move the console within 3 m (10 ft) of the router and run System Settings → Internet → Test Connection to ensure >25 Mb/s before retrying the download.
Power-cycle both router and Switch 2 (hold POWER 12 s) if progress remains stuck under 10%.
If campus / hotel Wi-Fi is used, Nintendo recommends a mobile hotspot or wired adapter until the update is finished.
Common Symptoms
- System update stuck at 10% / Preparing download for 30-60 min even on fibre internet
- Error codes 2137-8051 or 2811-7420 pop up after 20-30 min, forcing a restart loop
- Download timer reports "4 h remaining" while speed tests on other devices show 300 Mb/s
Hardware Information
Bottleneck is almost always server or router handshake; no widespread NAND or Wi-Fi-chip defects have been confirmed.
Switch 2's Broadcom Wi-Fi 6E card defaults to 6 GHz DFS channels; some routers fall back to 2.4 GHz, throttling speed unless manually pinned to 5 GHz.
Storage performance has tested normal once a stable >25 Mb/s link is present.
Components
Tools
Difficulty
BeginnerStep-by-Step Solutions
Force 5 GHz
Settings → Internet → Connection Status → Frequency "5 GHz"; reconnect if it shows 2.4 GHz
Disable IPv6
Edit network → DNS Manual → turn IPv6 off; many users report speed jump from 25 Mb/s → 250 Mb/s
Power-cycle router & console
Unplug router 30 s, hold POWER 12 s on Switch 2, then retry
Use USB-C LAN adapter
Dock the console and run the update via Ethernet
Change MTU to 1500
Network settings → MTU manual 1500; some ISPs throttle default 1400
Retry off-peak
Reddit users confirm updates complete in <10 min after midnight when Nintendo CDN load drops