Ubisoft Connect Error Codes
Ubisoft Connect is the launcher behind Rainbow Six Siege, The Division 2, Assassin's Creed and every other Ubisoft PC title, so its login and connection errors block all of them. 17014 is a connection error, Dolphin-005 means you're not logged in, and the Dolphin-026/028 codes are account-authentication failures. Most fixes involve re-authenticating, running the client as admin, or clearing its cache. Here's what each common error means and the fastest fix.
Error codes
17014
Ubisoft Connect can't establish its connection to the servers
Cause: A connectivity problem between the client and Ubisoft's services — often a firewall block, outdated client, or a temporary outage.
- Restart Ubisoft Connect and check the Ubisoft server status page.
- Allow Ubisoft Connect through your firewall/antivirus and disable any VPN or proxy.
- Clear the client cache and update Ubisoft Connect to the latest version.
Dolphin-005
You're not logged in to your Ubisoft Connect account
Cause: The launcher lost your authenticated session and needs you to sign back in.
- Open Ubisoft Connect and log back in to your account.
- If it won't accept the login, reset your password and sign in again.
- Reconnect your Steam/Epic account link if you launch via another store.
Dolphin-026 / Dolphin-028
Account authentication failed
Cause: An account-linking or authentication problem, often during server issues or when store accounts aren't linked correctly.
- Check and fix your account linking status (Steam/Epic <-> Ubisoft) and reconnect if needed.
- Run Ubisoft Connect as administrator (Properties -> Shortcut -> Advanced -> Run as administrator).
- Reinstall the client and clean the AppData folder if authentication keeps failing.
Connection lost / can't reach Ubisoft servers
The launcher dropped its link to Ubisoft's services
Cause: An unstable connection, a firewall/adapter issue, or a server-side outage.
- Reset your internet adapters and power-cycle your router.
- Uninstall and reinstall the client, then clean the AppData folder.
- Wait out any confirmed outage on the Ubisoft status page before retrying.
Fixes that work for most Ubisoft Connect (PC launcher for Rainbow Six, The Division, Assassin's Creed & more) errors
- Check the game's server status first (official status page, or the studio's support/X account) — most named connection errors are a maintenance window or outage, and no local fix will help until servers are back.
- Restart the game and your PC/console, and power-cycle your router — a fresh connection clears the majority of temporary login and connection errors.
- On PC, allow the game and its launcher through your firewall and antivirus, and disable any VPN or proxy — these block the authentication handshake behind many 'can't connect' codes.
- Flush your DNS (Command Prompt: ipconfig /flushdns) or switch to a public DNS like 8.8.8.8 / 1.1.1.1 if the game can't reach its servers.
- Verify/repair the game files (Steam: Properties -> Installed Files -> Verify; launcher: repair) if the error points at a corrupted install or update.
FAQ
How do I fix the Dolphin-005 error in Ubisoft Connect?
Dolphin-005 means you're not logged in to your Ubisoft Connect account — the launcher lost your session. Open Ubisoft Connect and log back in; if it won't accept the login, reset your password and sign in again; and reconnect your Steam or Epic account link if you launch the game through another store.
What does Ubisoft Connect error 17014 mean?
17014 is a connection error — Ubisoft Connect can't reach its servers, usually from a firewall block, an outdated client, or a temporary outage. Restart the client and check the Ubisoft server status page, allow Ubisoft Connect through your firewall/antivirus and disable any VPN, then clear the cache and update to the latest version.
Other games
- Assassin's Creed Shadows Error Codes — DX12 0x887a0006, 0x80070057, ANIMUS & Fixes
- Avowed Errors — UE-Alabama Fatal Error, DXGI_ERROR_DEVICE_REMOVED, LowLevelFatalError & Fixes
- Rainbow Six Siege Error Codes — 2-0x0000C015, 3-0x0001000B, 8-0x00003700, Vulkan & More
- Skull and Bones Error Codes — DODO-FFF0BE2B, OWL & 'Failed to Join Session' Fixes
- Star Wars Outlaws Errors — Crashing, Won't Launch, Windows 24H2 & Fixes
- The Division 2 Error Codes — Delta, Mike, Bravo, Delta-03, Mike-01 & Fixes
- Enotria: The Last Song Fatal Error / Crashing on PC? Fix (Intel CPU + Demo Saves) 2026
- The First Berserker: Khazan Crashing / Won't Launch on PC? Fatal Error Fix (sl.pcl.dll) 2026