How to Fix WiFi Issues on Nintendo Switch OLED: Slow Downloads and Connection Drops

The Nintendo Switch OLED is a fantastic portable console, but its WiFi performance has a reputation for being inconsistent. Games take hours to download, the connection drops mid-session, or the speed test on your phone shows 200 Mbps while the Switch creeps along at 5. None of this is unusual, and almost all of it is fixable without replacing any hardware.

The Switch OLED supports 802.11ac (WiFi 5) on both the 2.4 GHz and 5 GHz bands. That’s capable hardware on paper, but the console ships with conservative network defaults — MTU settings, DNS servers, and band selection — that frequently underperform on modern home networks. The fixes below address each cause in order of impact.

1. Switch to the 5 GHz Band

If your Switch is connected to the 2.4 GHz network, that’s the single most common cause of slow downloads in homes with any other WiFi traffic. The 2.4 GHz band is congested by design — it’s shared with Bluetooth devices, microwaves, baby monitors, and every neighbour’s router in range.

Go to System Settings → Internet → Internet Settings, select your network, and choose Change Settings. If you see a separate 5 GHz network (often labelled with “_5G” or “5GHz”), connect to that instead. If your router broadcasts a single merged SSID, the Switch may or may not select the faster band automatically — creating a dedicated 5 GHz SSID in your router settings guarantees it. See our guide on 2.4 GHz vs 5 GHz for more background.

2. Increase MTU to 1500

The Switch ships with an MTU (Maximum Transmission Unit) of 1400 bytes. This means every data packet is smaller than your router and ISP actually support, resulting in more round-trips per megabyte of game data downloaded. Raising it to the standard 1500 — the default for virtually all home networks — can dramatically improve throughput.

Navigate to System Settings → Internet → Internet Settings → [Your Network] → Change Settings, scroll to MTU, and change the value from 1400 to 1500. Save and run a connection test. Most users see an immediate improvement. If speeds get worse (rare, but can happen on certain ISP configurations), revert to 1400.

3. Use Google’s Public DNS Servers

The Switch also defaults to your router’s DNS, which routes through your ISP’s own servers. ISP DNS servers are often slower than public alternatives and can add latency to every new connection Nintendo’s servers initiate.

In the same Change Settings screen, select DNS Settings and switch from “Automatic” to Manual. Set the Primary DNS to 8.8.8.8 and Secondary DNS to 8.8.4.4 (Google). Alternatively, use Cloudflare’s 1.1.1.1 / 1.0.0.1, which is often the fastest of the two. Save, then run a connection test again.

4. Download in Sleep Mode

When the Switch is active, it divides processing resources between the running game, system UI, and background downloads. In sleep mode, nearly all power is redirected to the download task, which can more than double the effective download speed for large game files.

Enable this via System Settings → Sleep Mode → Auto-Download in Sleep Mode. Queue your download, put the console to sleep, and let it finish overnight. This is the simplest fix for large AAA game downloads.

5. Move Closer to Your Router — or Relocate Your Router

The Switch’s internal antennas are compact by necessity, and signal quality degrades sharply with distance and obstacles. Nintendo recommends staying within roughly 10 feet (3 metres) of your router for reliable speeds. If that’s not practical, check our router placement guide for tips on repositioning your router to cover where you actually use your Switch.

If your dock is in a TV cabinet or entertainment unit surrounded by metal components and thick wooden panels, that enclosure is acting as a Faraday cage. Move the dock to an open shelf or use an HDMI extension cable to bring the Switch out of the cabinet.

6. Restart the Console and Router Together

Hold the Power button for three seconds, then select Power Options → Restart. Then power-cycle your router by unplugging it for 30 seconds. A stale DHCP lease or a corrupted ARP cache on the router can throttle a single device while everything else on the network runs fine. A fresh restart clears both.

7. Change Your Router’s WiFi Channel

If you’re in a crowded apartment building, your 5 GHz channel may be heavily contested by neighbouring networks. Log into your router admin panel (typically 192.168.1.1 or 192.168.0.1) and change the 5 GHz channel to one with less competition. Use a WiFi analyser app on your phone to see which channels nearby networks are using, then pick the emptiest one. Our guide on changing your WiFi channel walks through the process step by step.

8. Update System Firmware

Nintendo regularly releases system updates that include networking improvements and bug fixes. Go to System Settings → System → System Update to check for and install any pending updates. Some versions have fixed known WiFi regressions introduced in earlier firmware — keeping the console current is always a prerequisite before deeper troubleshooting.

Quick Diagnosis Checklist

1. Run System Settings → Internet → Test Connection to get a baseline speed reading from the console itself.
2. Compare that reading with a speed test on your phone standing next to the Switch — if phone speeds are normal and Switch speeds are low, the issue is Switch-side configuration.
3. Switch to 5 GHz, raise MTU to 1500, and set Google DNS — these three changes together resolve the vast majority of cases.
4. If speeds are still low, move closer to the router and retest to rule out signal distance as the bottleneck.
5. If all devices in your home are slow, the problem is upstream — check our WiFi speed test tool on a laptop to confirm and contact your ISP if needed.

The Switch OLED’s hardware is not the limiting factor in almost any home network setup. The conservative factory defaults and a crowded 2.4 GHz connection are almost always to blame. Apply the MTU and DNS fixes, move to 5 GHz, and you should see a marked improvement within minutes.