The first question is where the failure occurs. If you cannot enter online multiplayer or co-op, a router reset, port-forwarding rule, reinstall, or new broadband connection will not restore the service: Ubisoft’s current PC listing says that online features are no longer supported and that multiplayer and co-op modes are no longer functional. If the game closes, hangs, or never reaches its menu, you have a separate local launch and compatibility problem. The steps below keep those two cases separate.
Identify the failure before changing anything
Do not begin with network settings. Note the exact point at which the problem appears, because the remedy depends on whether the game is reaching Ubisoft’s retired service at all.
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Failure while joining online co-op
Typical signs include an old sign-in prompt, an invitation that never completes, a failed matchmaking request, or an error after selecting multiplayer. These are service-availability symptoms when the game is otherwise launching normally. Ubisoft’s current product page is decisive here: “Online features for this game are no longer supported. Multiplayer and co-op modes are no longer functional.”
Failure before the main menu
A crash on startup, a black window, a freeze during the opening video, or an immediate return to the desktop is a local PC issue. It may involve the installed build, legacy graphics or audio compatibility, damaged files, permissions, or a Windows configuration. The available official information does not establish one universal launch fix for every Windows 10 or Windows 11 system, so treat each case as a diagnosis rather than applying a random list of tweaks.
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Use this quick classification
| What you observe | What it means | Best next action |
|---|---|---|
| The game opens, but online multiplayer or co-op cannot connect | The official online service is retired | Stop network troubleshooting; read the service-status section |
| The game fails before a menu appears | A local launch or compatibility fault | Check storefront, build, operating system, and published requirements |
| The game launches only after an old guide’s sign-in steps | The guide describes the historical service | Use it as background, not proof that current online play is available |
| A downloaded patch or executable is being suggested | The file’s origin and integrity may be uncertain | Verify provenance before installing anything |
Why official online co-op cannot be repaired
Ubisoft’s current PC listing does not describe a temporary outage. It states that online features are no longer supported and that multiplayer and co-op modes are no longer functional. That is a service retirement, not a port, firewall, or bandwidth fault on your computer.
Consequently, the following actions cannot bring Ubisoft’s official co-op service back:
- Forwarding ports on your router or enabling UPnP
- Changing DNS servers
- Allowing the game through Windows Firewall
- Reinstalling the game or the launcher
- Buying a faster internet connection
- Using the historical 128 kbps upstream requirement as a target
Those measures can matter for a live multiplayer product, but they cannot recreate servers and account services that the publisher no longer supports. Repeatedly changing them risks introducing a new networking problem while leaving the original service-status issue untouched.
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The original PC manual describes creating a multiplayer profile, signing in to an online account, and launching co-op challenges over the Internet or a LAN. That documentation explains how the feature was designed when the game was supported. It does not constitute a current availability statement. Ubisoft’s present service notice supersedes those historical instructions.
If a forum post tells you to follow an old invite or account-login sequence, expect the sequence to stop at an unavailable service. The manual can help you recognize an old menu or terminology, but it cannot make the discontinued official backend respond.
What you can still troubleshoot locally
A retired online service does not necessarily prevent the installed game from launching for single-player or other locally available functions. The practical goal is therefore to establish a clean, known configuration and document the exact point of failure. Do not describe a successful local launch as evidence that online co-op has returned; those are separate systems.
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Check the published platform and requirements
Ubisoft’s current listing names Windows 10 and Windows 11 for the PC content. Steam Support also says the game can be played on Windows 10 and Windows 11. These are storefront compatibility claims, not a guarantee that every graphics card, driver, overlay, security product, or display mode will work without adjustment.
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| Published item | Value | How to interpret it |
|---|---|---|
| Operating system | Windows 10 and Windows 11 | Current listed platforms; individual hardware and software combinations can still fail to launch |
| Memory | 1 GB minimum; 1.5 GB recommended | Legacy Steam Support specifications, not a modern performance guarantee |
| Available storage | 8 GB | Space listed for the game; leave additional room for the operating system, updates, and saves |
| DirectX | DirectX 9.0c or later | The published legacy requirement; meeting it alone does not resolve every graphics compatibility issue |
| Upstream broadband | 128 kbps or faster | A historical multiplayer requirement; it does not imply that multiplayer service remains available |
Steam does not state a publication year for these numerical requirements. Treat them as the specifications attached to a legacy PC release, not as a current benchmark for frame rate, display support, or online availability.
Confirm your Windows edition
- Open Settings in Windows.
- Select System, then About.
- Record the Windows edition, version, system type, installed RAM, and processor shown there.
This record helps distinguish an unsupported or unusual environment from a game-file problem. Windows 10 or 11 being listed by the store means your operating system is within the advertised range; it does not certify a particular GPU driver or peripheral.
Confirm free disk space
Check the drive that contains the game and make sure at least the listed 8 GB is available. A nearly full system drive can also prevent temporary files, shader caches, or Windows operations from completing, so record the free space on the system drive as well as the installation drive. The 8 GB figure is the published game requirement, not a recommendation to leave only 8 GB free.
A cautious launch-diagnosis workflow
Follow these steps in order and keep a short record of what changes. The order is designed to identify the build and environment before you attempt configuration changes.
1. Identify the storefront and installed build
Write down whether your copy is installed through Steam or another Ubisoft-distributed PC channel, and note the version number displayed by the launcher or in the game’s information screen. Different storefront packaging can expose different configuration files and update histories. Do not assume that a guide written for a disc release applies unchanged to a current digital installation.
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2. Check the game’s local files using the storefront’s own tools
If you use Steam, open the game’s Properties dialog and look under the installed-files section for its file-verification control. Client labels can change, so use the control that checks the installation against the store’s copy. This is a diagnostic for missing or altered local files; it does not repair discontinued online services and it does not guarantee that a legacy graphics issue will disappear.
For a non-Steam installation, use only the repair or verify function provided by the publisher’s own client. Avoid downloading replacement executables from a random file-hosting page.
3. Establish the patch state
PCGamingWiki identifies version 1.02a as the latest official patch. Because that information is maintained by the community rather than by a current Ubisoft support bulletin, use it as a version reference while you investigate. Compare the version reported by your installation with the version expected by the documentation you are reading.
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4. Consult configuration-specific compatibility notes
PCGamingWiki documents persistent compatibility problems for the PC release and collects notes that vary by version and hardware. Use the game-specific page to match your exact symptom, storefront, and build. Read the date and scope of each note, and distinguish a reported workaround from an officially supported solution. The page is useful investigative guidance, not a guarantee that one setting applies to every Windows 10 or Windows 11 computer.
5. Test one change at a time
When a documented compatibility note suggests a change, record the original setting first, make only that change, and test the same launch path again. Changing several graphics, compatibility, and audio settings at once prevents you from learning which change helped and makes rollback harder. If the game becomes less stable, restore the recorded original value.
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6. Capture the exact symptom
Record whether the process exits silently, displays an error, freezes on a particular video, or reaches a menu before failing. Include the Windows version, storefront, game version, GPU model, display resolution, and whether the failure occurs in single-player or only after selecting an online function. This information is more useful than a statement such as “it does not work,” especially when comparing your case with a community compatibility note.
How to interpret common launch reports
Immediate crash with no message
First verify the local installation and record the build. Then compare the crash timing with version-specific compatibility notes. Do not infer that an immediate crash is a network problem simply because the title contains a co-op mode; a process that never reaches the menu has not attempted the retired service.
Black screen or hang during startup
Record whether audio continues, whether Windows reports the application as unresponsive, and whether changing display mode or resolution is mentioned for your exact build in the community technical notes. Avoid copying a setting from a different version without checking its scope. If a note requires a third-party file, apply the provenance and safety checks above before proceeding.
Failure after selecting multiplayer
If single-player launches and the failure begins only when you choose online multiplayer or co-op, return to the service-status conclusion. A successful local launch demonstrates that the executable can run; it does not indicate that account sign-in, matchmaking, or invitations are still operated by Ubisoft.
Old account or profile prompt
The prompt is consistent with the historical manual’s multiplayer-profile and online-sign-in flow. It is not evidence of a current server. You can document the prompt for troubleshooting, but repeatedly creating profiles or resetting passwords will not revive a service that the publisher has marked unsupported.
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Why historical bandwidth figures are misleading today
Steam Support lists 128 kbps of upstream broadband for multiplayer. That number belongs to the game’s original published requirements. It can help explain why an old manual or system page mentions a modest connection, but it is not a live-service threshold and should not be used to diagnose the current co-op failure. The service-status notice is the controlling fact.
Similarly, the 1 GB memory minimum and 8 GB storage requirement describe a product designed for an earlier PC environment. A modern computer can exceed those numbers and still encounter a legacy graphics or compatibility fault. Passing a minimum requirement is necessary context, not a launch guarantee.
Evaluating unofficial approaches without taking unnecessary risks
No current, officially verified online co-op route is established here. Community projects may discuss LAN emulation, compatibility layers, or modified builds, but an approach should not be treated as a proven fix unless its current maintenance, supported version, network method, and file provenance are clear.
Before trying any unofficial method, ask:
- Does it state exactly which game build it supports?
- Does it provide a verifiable publisher or project origin?
- Does it explain whether it targets LAN play, Internet play, or only local launch compatibility?
- Is there a recent maintenance record that matches your Windows version?
- Can you restore the original files and remove the modification cleanly?
- Has the file been scanned and independently checked rather than copied from an unverified mirror?
If the answer to these questions is unclear, do not run an executable with administrator privileges. Back up saves and configuration files before any modification, and keep the untouched installation available for rollback. None of these precautions changes Ubisoft’s official service status; they only reduce the risk of turning a launch problem into a security or data-loss problem.
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- Does the game fail before the main menu? If yes, work through storefront, build, operating-system, storage, and compatibility checks. If no, continue.
- Does single-player or another local mode launch? If no, continue local diagnosis and do not change router settings. If yes, continue.
- Does the failure occur only when entering official online multiplayer or co-op? If yes, Ubisoft’s current notice explains the result: those modes are no longer functional.
- Is a proposed fix an executable from a community mirror? If its origin and integrity cannot be verified, do not install it.
- Does a community note match your exact version and symptom? If not, treat it as background rather than a guaranteed remedy.
What a useful support report contains
If you seek help from a storefront or a technical community, include the details that let others separate a local launch fault from a retired-service failure:
- Storefront and installation path
- Displayed game version and whether it matches the 1.02a reference
- Windows 10 or Windows 11 edition and version
- CPU, GPU, installed memory, display resolution, and available storage
- The exact error text, if any
- The last screen reached before the failure
- Whether single-player launches
- Every change already tested, with the result of each change
Never include passwords, product keys, or account-recovery codes in a public report. A precise symptom record prevents responders from suggesting network repairs for a process that is crashing locally, or local reinstall steps for a service that has been retired.
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There are two different outcomes. Official online multiplayer and co-op cannot be restored through PC or router troubleshooting because Ubisoft has discontinued those online features. A game that fails before the menu still deserves a methodical local diagnosis: identify the storefront and build, compare your Windows environment with the published legacy requirements, verify files through the client, consult version-specific community notes, and treat every unofficial executable as a security decision. Current sources do not establish a single launch fix that works for every Windows 10 or Windows 11 configuration.
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