Fortnite Error Code -91 means you’re unable to join a party. Epic’s support guidance does not identify one cause for every occurrence, so start by checking whether Fortnite’s services are affected, then follow the troubleshooting steps for your platform.
1. Check whether Fortnite services are having an issue
Before changing your settings, check Epic Games Public Status. Look for an incident affecting Fortnite or parties, friends, and messaging. If there is one, wait for Epic’s update and check the status page again before continuing with local troubleshooting. The status page changes over time, so its current report—not an earlier snapshot—is what matters.
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Epic’s Error Code -91 support article gives platform-specific troubleshooting steps but does not say that the error always has a single cause.
2. Follow the steps for your platform
PC: Verify Fortnite’s game files
Use the Epic Games Launcher to verify the game files. This is Epic’s PC-specific step for this error.
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- Redeemable on accounts in the United States and in U.S. Dollars.
- Gift card must be redeemed at EpicGames.com/redeem. This gift card WILL NOT work if redeemed directly on a console device (PlayStation, Xbox, Nintendo Switch, etc.)
- If you play Fortnite experiences on a console device, you need to link your Epic Games account to your console account(s) so items purchased at Fortnite.com/item-shop appear across all of your linked accounts
- Requires internet connection, valid Epic account and prior acceptance of the terms
- Redemption: Online
- Open the Epic Games Launcher and go to your Library.
- Find Fortnite and select the three-dot menu beside it.
- Select Manage, then Verify.
- Wait for verification to finish, then try joining the party again.
Console: Clear the console cache
Epic recommends trying a cache clear on consoles. The procedure depends on the system; use the directions for your platform rather than applying steps intended for another console. Epic links to instructions for PlayStation, Xbox Series S|X, and Nintendo Switch.
PlayStation or Xbox: Check crossplay
If you play on PlayStation or Xbox, make sure Fortnite crossplay is enabled. A crossplay setting can affect whether players on different platforms can join together.
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- Redeemable on accounts in the United States and in U.S. Dollars.
- Gift card must be redeemed at EpicGames.com/redeem. This gift card WILL NOT work if redeemed directly on a console device (PlayStation, Xbox, Nintendo Switch, etc.)
- If you play Fortnite experiences on a console device, you need to link your Epic Games account to your console account(s) so items purchased at Fortnite.com/item-shop appear across all of your linked accounts
- Requires internet connection, valid Epic account and prior acceptance of the terms
- Redemption: Online
Console: Check NAT
Epic also recommends troubleshooting NAT on consoles. Follow the guidance for your console and network; NAT settings and available instructions vary by platform.
3. Refresh your connection and device
If the service status is operational and the platform-specific checks have not helped, Epic suggests restarting your router or troubleshooting your internet connection, then restarting your device to refresh its system settings. Once the device is back online, try joining the party again.
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- An Epic Games account is required to redeem an Epic Games Store Card code
- If playing on a console platform (PlayStation Network, Xbox Live, Nintendo Switch or Mobile) you need to link your Epic Games account to that gaming platform (one time) to redeem your gift card code
- The 16 digit code on the back of the card WILL NOT work if redeemed directly through your gaming platform (PlayStation Network, Xbox Live, Nintendo Switch, Mobile, etc.)
- Note: Nintendo devices do not support Fortnite Shared Wallet, so V-Bucks purchased using your account balance will not show up on your Nintendo device. However, if you purchase items in the web Item Shop — or another platform where you play Fortnite — those items will be available in your Locker across all platforms.
- Redemption: Online
4. If Error -91 continues
Recheck Epic’s live status in case an incident has started, and consult Fortnite Live Issues and Bugs for current issue information. If no relevant issue is listed, make sure you have followed the steps for your platform; Epic does not guarantee that any single step will resolve every case of Error -91.
Quick Recap
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- An Epic Games account is required to redeem an Epic Games Store Card code
- If playing on a console platform (PlayStation Network, Xbox Live, Nintendo Switch or Mobile) you need to link your Epic Games account to that gaming platform (one time) to redeem your gift card code
- The 16 digit code on the back of the card WILL NOT work if redeemed directly through your gaming platform (PlayStation Network, Xbox Live, Nintendo Switch, Mobile, etc.)
- Note: Nintendo devices do not support Fortnite Shared Wallet, so V-Bucks purchased using your account balance will not show up on your Nintendo device. However, if you purchase items in the web Item Shop — or another platform where you play Fortnite — those items will be available in your Locker across all platforms.
- Redemption: Online
Rank #4
- Redeemable on accounts in the United States and in U.S. Dollars.
- Gift card must be redeemed at EpicGames.com/redeem. This gift card WILL NOT work if redeemed directly on a console device (PlayStation, Xbox, Nintendo Switch, etc.)
- If you play Fortnite experiences on a console device, you need to link your Epic Games account to your console account(s) so items purchased at Fortnite.com/item-shop appear across all of your linked accounts
- Requires internet connection, valid Epic account and prior acceptance of the terms
- Redemption: Online
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
