Fix SnowRunner Error Code 10004 (Mod Download Issue)

Modding in SnowRunner adds an entirely new layer of gameplay—but when Error Code 10004 shows up, it can bring everything to a standstill. This error often appears when trying to download or activate mods and can affect players on PC, PS5, and Xbox.

What is SnowRunner Error Code 10004?

“Mod download failed. Unknown error. Code: 10004.”

This is a mod.io-related networking error, which means SnowRunner is unable to connect or authenticate with the mod distribution platform. Players report this after returning to the game after a break or during mod updates.

What Causes Error 10004 in SnowRunner?

1. Server Downtime

• mod.io may be undergoing maintenance.
• SnowRunner’s own servers could be down.
• Always check: mod.io Status

2. ISP or Network Restrictions

• VPNs, strict firewalls, or IP conflicts can block mod downloads.
• Many players report this fix: Switching to a mobile hotspot.

3. Expired or Corrupted Login Sessions

• If you haven’t played for a while, your mod.io session token may have expired or corrupted—especially on PC.

4. Corrupt or Outdated Mods

• Download failures or unapproved mods (console) can also trigger this.

5. Game Version Mismatch

• Running an older game version with new mods can lead to mod incompatibility and error codes.

How to Fix SnowRunner Error Code 10004

Below are solutions tested by both the community and SnowRunner tech support. Follow the order based on your platform:

1. Restart Game & Network (Universal Fix)

Before anything else:

• Restart your console or PC
• Power cycle your modem/router
• Disable VPN or proxy temporarily
• Check SnowRunner’s Twitter or Discord for server issues

2. Switch to a Mobile Hotspot (PC, PS5, Xbox)

If you’re stuck with Error 10004, this is the most talked-about workaround.

Why it works: Your ISP-assigned IP might be blocked or misrouted when communicating with mod.io servers. A mobile hotspot assigns a fresh IP, bypassing that.

Steps:

1. Enable hotspot on your phone
2. Connect your console or PC to the hotspot
3. Launch SnowRunner and download mods
4. (Optional) Revert to Wi-Fi after successful download

Read More: Jane Doe Build & Playstyle Guide (ZZZ)

3. Clear Mod.IO Authentication (PC Only)

This is the go-to fix for PC players, especially if you see the error persist after login.

Steps:

1. Close SnowRunner
2. Go to: C:\Users\%USERNAME%\Documents\My Games\SnowRunner\base\Mods\.modio\
3. Delete authentication.json
4. Relaunch the game
5. Re-login to mod.io when prompted

4. Reinstall Mods (PC & Console)

A corrupted mod file or a half-downloaded update may be behind the scenes.

Steps:

1. Unsubscribe from all mods
2. Restart SnowRunner
3. Re-subscribe to each mod one-by-one
4. Identify if one specific mod triggers the error

Tip: Avoid mods that haven’t been updated in months.

5. Console-Specific Fixes (PS5 / Xbox)

Clear Game Cache

• PS5:
  Settings → Storage → Saved Data → Delete SnowRunner Cache
• Xbox:
  Manage Game → Saved Data → Clear Reserved Space

Console Mod Restrictions

• Make sure you’re downloading console-approved mods only.
• Mods labeled “PC only” will not work on PS5/Xbox and can cause errors.

6. Advanced PC Fixes (For Persistent Errors)

Port Forwarding: Open the following in your router settings:

• TCP: 11700–11710
• UDP: 48800–48810

Verify Game Files:

• Steam: Right-click SnowRunner → Properties → Installed Files → Verify
• Epic: Library → SnowRunner → Three Dots → Verify

Temporary Workarounds (If All Else Fails)

Sometimes, the issue is server-side. Here’s what to do:

• Wait a few hours or a day
• Check Mod.IO and SnowRunner Discord for announcements
• Try a friend’s Wi-Fi or cafe network
• Use a mobile hotspot only for mod downloading

Fix Summary Table

Final Thoughts

Error 10004 isn’t a game-breaking bug—it’s usually a network or session-related hiccup that can be resolved with a few steps. For PC users, clearing the authentication file often works best. For console players, switching networks or clearing the game cache has helped many.