Nintendo Switch 2 users should be aware of a particular setting that prevents the console from fully entering sleep mode by maintaining an active internet connection to check for updates and download notifications. When enabled, this feature can cause the docked console to remain warm even during standby periods.

Similar to its predecessor, the Switch 2 offers two internet connectivity options: Wi-Fi and LAN. The wired LAN connection, exclusive to docked mode, provides more stable performance with lower latency and faster speeds, though it requires physical cable connection. Interestingly, Nintendo has incorporated a Wake-on-LAN-like feature that allows real-time update checks while docked.

The energy consumption implications of this always-on connectivity have recently come to light. A Reddit user's thermal imaging experiment revealed that a docked Switch 2 maintained a temperature of 98°F (36.67°C) in standby mode with persistent LAN connection active. While Nintendo's official documentation mentions increased power usage, it doesn't highlight the thermal impact.

Comparative testing shows the Switch 2 runs noticeably warmer than the OLED model when using the always-on LAN feature in sleep mode. This setting is disabled by default, and users who've performed factory resets confirm the system boots with this feature turned off. Disabling the persistent connection resolves the temperature issue entirely.

To disable the active wired connection in sleep mode:

1. Access the System Settings menu
2. Navigate to Sleep Mode options
3. Toggle off 'Keep Wired Connection Active in Sleep Mode'

While the reported temperatures aren't dangerous (falling within normal operating ranges), frequent dock users might prefer disabling this feature to give their console periodic rests. The performance difference between Switch 2 and OLED models suggests potential for software optimization in future updates.

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