Clash Multi-Device Sharing: Home Router Setup and Sync Tips

Choose a Home Network Layout Before You Configure Anything Explained

Running Clash on several devices at home does not necessarily mean installing the client and importing the same subscription on every screen. The first decision is where traffic should enter the proxy: on each device, on a router running a compatible Mihomo core, or through a dedicated gateway placed beside the existing router. Each layout can work well, but they solve different problems. A laptop that travels between home, work, and public Wi-Fi benefits from a local client. A television or game console that has no proxy settings may be easier to serve through a gateway. A household that wants one centrally maintained policy may prefer a capable router, provided its CPU, memory, firmware, and network topology are suitable.

A router-based setup usually means that the router itself runs Mihomo or a supported package and applies policy routing to selected clients. Devices can then use the router as their normal gateway while the router decides which connections go through a proxy group and which remain direct. The main advantage is coverage: devices that do not offer HTTP proxy settings can still be routed. The trade-off is that router firmware, DNS, firewall rules, and policy routing become part of the troubleshooting surface. A configuration mistake can affect the whole household rather than one computer.

A per-device setup keeps Clash on the laptop, phone, or tablet that needs it. It is usually the easiest way to begin because the client can show its own connection logs, profile status, and system-proxy state. It also lets different people use different rules without coordinating a shared router policy. Its weakness is repetition: every device needs a profile, updates, and an appropriate capture method. A browser may follow the system proxy while a game, smart TV, or command-line tool does not.

A dedicated gateway is the middle ground. It can be a small computer or supported router that runs Mihomo and serves a separate network, VLAN, or selected clients. The existing internet router continues to handle Wi-Fi and basic routing, while the gateway provides a more controllable place for proxy policy. This can reduce the risk of changing the primary router, but it adds another device, another route, and sometimes another DHCP or DNS decision. Avoid placing a gateway in the path until you can explain which device is the default gateway for each client.

Before choosing, list the devices that actually need proxy routing and the applications they use. A phone used only for ordinary browsing may need no special treatment, while a media box or a development machine may need broader capture. Also check whether your router can run a current Mihomo build, whether the provider profile depends on features supported by that build, and whether the router has enough CPU and memory for the expected number of connections. “The router has a USB port” or “the firmware has a proxy menu” is not proof that it can run your profile reliably.

Plan Profiles, Device Identity, and Shared Settings in Detail

“Sharing Clash across devices” can mean sharing a subscription link, sharing a complete configuration, or sharing a routing policy. Those are not the same thing. A subscription URL may contain a private token that grants access to nodes and should be treated like a password. A downloaded YAML file may include local overrides, DNS settings, or private addresses that make sense on one network but not another. A routing policy describes how traffic is classified, but each client still needs a working core, listeners, and a path to the internet.

For most households, keep the provider subscription as the source of proxy nodes and groups, then maintain only the small set of local changes that are genuinely needed. If the desktop client supports profile updates or an overlay mechanism, use that rather than repeatedly editing a provider-generated file that will be overwritten at the next refresh. On a router, make a backup before changing the active profile and confirm how that firmware persists custom rules. The exact menu names differ among Clash Verge, Clash Verge Rev, Mihomo-based mobile clients, and router packages, so verify the generated configuration rather than assuming two interfaces interpret every option identically.

Decide whether everyone should use one policy or whether some devices need separate behavior. A simple household policy might send selected services through a chosen proxy group while keeping local network traffic direct. A work laptop might need a different set of exceptions from a living-room television. A child’s tablet may need predictable connectivity more than access to every available group. Where the client or router can identify devices by IP address, DHCP reservations make policies easier to maintain than rules tied to addresses that change after a reboot.

Use clear names for groups and policy choices. “Home Proxy,” “Streaming,” or “Manual Select” is easier to understand during a network outage than a collection of provider-specific labels. Keep automatic health checks conservative: a check can help select a responsive node, but frequent testing adds traffic and does not prove that a long video stream, game session, or voice call will remain stable. If a device is sensitive to address changes, a group that switches nodes mid-session can cause a connection to reset even when the new node has a better ping.

Local traffic deserves an explicit plan. Printers, network storage, casting devices, router administration pages, and services advertised with local discovery often rely on private addresses or multicast traffic. They should not accidentally be sent through a remote proxy. A direct policy for private subnets is a useful starting point, but it is not a substitute for checking the actual connection log: local discovery protocols may not appear as ordinary hostname-based web requests, and some applications communicate using addresses that are not obvious from their interface.

Keep a short record of the choices that affect the whole home: which device is the gateway, which DNS service clients use, which network ranges are local, which group is the default for ordinary traffic, and how to disable proxy routing if the core stops. Save a copy of the known-good profile and note the date of each meaningful change. This is more useful during an outage than a folder of unlabelled YAML exports, particularly when another household member needs to restore internet access.

Onboard One Device and Verify the Traffic Path Made Clear

The steps below use a single test device and work as a planning checklist whether the final destination is a desktop client or a router. Interface labels vary, so focus on the result at each stage. Do not move several devices to a new gateway before confirming that a normal browser request, a proxy-selected request, and a local-network connection each take the intended path.

1. Record the current network settings. Note the device’s IP address, subnet, default gateway, and DNS server. If you are testing a router or gateway, save its current configuration and confirm how to reconnect if the new route fails.
2. Choose the profile source. Import the provider subscription into the client or router that will run Mihomo. Protect the subscription URL, check that the profile updates successfully, and verify that the active core supports the profile’s proxy types and rule syntax.
3. Set the capture method for the test device. A desktop system-proxy mode may cover applications that honor operating-system proxy settings, while TUN or router policy routing may be needed for applications that do not. Enable only one capture path at first; overlapping clients or gateways can create confusing loops and duplicate routing.
4. Define local and proxy policy. Keep the home subnet and router-management address on a direct path. Select a known proxy group for the test rather than relying on an unfamiliar automatic choice. If the profile has a global or rule mode, confirm which mode is active and what the default policy does.
5. Test three kinds of traffic. Open a local printer or router page, load an ordinary website, and then access a destination expected to use the proxy. Review the client’s connection log or the router’s live connection view to confirm the matched rule and selected outbound for each request.
6. Repeat after reconnecting. Disconnect and reconnect Wi-Fi, restart the client or gateway, and repeat the checks. This catches settings that work only until a DHCP lease changes, a core restarts, or a device reconnects to another access point.
7. Expand gradually. Add one device or one device group at a time. After each change, check local services, DNS resolution, and the intended proxy path before including the next household device.

For a router installation, the most important practical question is whether clients are actually sending traffic through the router feature you enabled. A dashboard can report that Mihomo is running while a device still uses a different gateway, a stale DNS server, or a bypass rule. Check the client’s default route and compare it with the router’s connection view. If only selected devices should use the proxy, verify both sides of the policy: the selected device is included, and other devices are not unintentionally captured.

On a desktop or phone, system-proxy mode and TUN mode solve different coverage problems. System proxy is often simpler for browsers and applications that respect the operating system setting. It usually does not force every network connection through Clash. TUN can capture a broader set of traffic, but may require elevated permissions, a virtual interface, and careful DNS handling. For a household device that cannot install a client, routing it through a properly configured router or gateway may be more practical than trying to turn it into a proxy-aware device.

Keep Local Traffic Direct and Avoid Gateway Loops Under the Hood

Home-network failures often appear after a proxy is enabled because local and internet traffic are treated as one undifferentiated stream. A printer may be reachable at a private address, a NAS may be discovered through a local name, and a smart speaker may expect a phone and speaker to remain on the same subnet. Sending those connections to a remote proxy can make devices appear offline even while public websites load normally. Keep the local subnet direct, and test the actual services your household uses rather than assuming that a successful ping proves casting, discovery, or file sharing is intact.

Pay particular attention to DNS. A device can resolve a hostname using one resolver and send the resulting connection through a different route. Router-level DNS, client-side DNS, encrypted DNS in a browser, and Mihomo’s own DNS behavior may all interact. If a local name stops resolving, compare the answer on the device with the router’s answer, then inspect whether the request is visible in the expected log. Changing several DNS settings at once makes it difficult to tell whether the problem was name resolution, rule matching, or the outbound connection.

A gateway loop is another common source of “connected, but nothing loads.” For example, a router may forward client traffic to a proxy gateway, while the gateway’s own outbound traffic is sent back to the same router policy that forwards it again. The result can be a routing loop, repeated connection attempts, or traffic that never reaches the intended node. The gateway’s upstream path should be clear and should not depend on being captured by its own downstream proxy rule. If possible, test the gateway’s own connectivity separately from the clients it serves.

When access breaks, change one variable at a time. First check that the core is running and the profile is active. Then confirm the device’s gateway and DNS server, inspect the matched rule, and test a direct destination. If proxy-selected traffic fails but direct traffic works, investigate the selected group, node availability, and provider profile. If both local and public traffic fail only for one device, check its capture permissions, address reservation, and client-specific proxy settings before editing a shared router configuration.

Plan an uncomplicated recovery path before changing the main router. Keep local access to its administration page, know how to disable the proxy service, and retain a backup of the working configuration. If you are experimenting with a separate gateway, test with one client first and leave the rest of the home on the original route until the test survives a restart. A reversible setup turns troubleshooting into a controlled change instead of a household-wide outage.

Choose a Setup You can Maintain Explained

The best multi-device Clash setup is not always the one with the fewest clicks on day one. A router can centralize policy, but a low-powered device or unsupported firmware may struggle with a large profile, frequent connections, or features its Mihomo build does not implement. Per-device clients can be easier to inspect, but importing the same subscription everywhere creates more update points and more chances for profiles to drift. A separate gateway gives you room to experiment, although it adds network equipment and requires a clear plan for addressing, DNS, and recovery.

Choose according to who will maintain the system. If one person is comfortable reading logs and restoring router settings, centralized routing may be convenient. If household members need to solve everyday connectivity issues themselves, independent clients with a short set of documented steps may be safer. If only a television or console needs special routing, a gateway or selected-device policy may be more appropriate than enabling broad capture for every phone and computer.

Review the setup occasionally rather than waiting for a device to fail. Confirm that the core and provider profile still update, remove devices that no longer need special routing, and test local services after significant network changes such as replacing the router or changing the Wi-Fi subnet. Keep credentials private, avoid publishing subscription URLs in screenshots, and make a fresh backup before changing DNS, firewall, or gateway rules. These small habits prevent a simple subscription refresh from becoming an evening of rebuilding the home network.

Some all-in-one router plug-ins make a quick start look effortless, but they can hide which component owns DNS, device selection, or policy routing; at the other extreme, hand-editing separate YAML files for every device is flexible but easy to let drift. Clash offers a more guided starting point, with client download options and practical setup guidance that help you choose a per-device or router-based path and verify it step by step. If you want to test the client on one device before changing the whole household network, download a Clash client and begin with the smallest setup that meets your needs.