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If your Conan Exiles dedicated server is missing from the browser, test it from outside your home network before changing random settings. The usual causes are an unforwarded UDP game or pinger port, a blocked Windows Firewall rule, a query-port mismatch, CGNAT, or testing from the same PC or LAN. The reliable sequence is: verify the server’s port assignments, confirm green port status in the dedicated-server launcher, forward those exact ports to a reserved LAN address, allow the executable through the firewall, and use Direct Connect from another network. If Direct Connect works but the browser does not list the server, the game port is reachable and the remaining problem is registration or server-query traffic.
Which ports Conan Exiles uses for browser listing
Conan Exiles uses separate traffic paths for gameplay, browser availability checks, server queries, and (on PC) on-demand mod downloads. Forwarding only the familiar game port can leave a server playable by direct address but invisible in the list.
| Port | Protocol | Purpose | Where it is set | What to do |
|---|---|---|---|---|
| 7777 | UDP | Game traffic. Players use it after selecting the server or entering a Direct Connect address. | Port= in Engine.ini or the -Port= launch argument. |
Forward to the server computer and allow it through the host firewall. |
| 7778 | UDP | Pinger port used by the server browser to check whether the game service is available. | Always the game port plus one; it cannot be changed with a command-line or configuration setting. | Forward it whenever the game port is changed. For the default game port, this is 7778. |
| 27015 | UDP | Server-query traffic used for browser information. | GameServerQueryPort= in the [OnlineSubsystemNull] section, or -QueryPort=. |
Forward the selected query port and keep the setting consistent between launch options and configuration. |
| 7777 | TCP | On-demand mod transfer for PC clients requesting a mod from the server. | Uses the game-port number. | Allow or forward TCP 7777 if your PC server distributes mods. It is not the browser’s UDP query channel. |
The dedicated server no longer relies on Steam for this query implementation; the relevant setting is under [OnlineSubsystemNull]. Older guides may show the defaults in a different order or use [OnlineSubsystemSteam]. Treat those older settings as obsolete, remove an old Steam query entry, and check the files shipped with your installed build.
Start with a test that separates network failure from browser failure
- Start the dedicated server and wait until it has finished loading.
- Open the dedicated-server launcher and inspect its port indicators. A green status on every required port is a useful local check, although it does not prove that your router or ISP permits inbound connections.
- From a phone using cellular data, a friend’s connection, or another genuinely different network, use Direct Connect with the public IP address and game port, for example
public-ip:7777when the default port is in use. - Interpret the result. A successful Direct Connect proves that the game path is reachable; focus next on the query port, pinger port, registration, filters, or browser delay. A failed Direct Connect means you should repair forwarding, firewall, addressing, or ISP restrictions before troubleshooting listing.
Do not use a second PC on the same home router as your only outside test. Hairpin NAT and local-network restrictions can make a healthy public server appear unreachable, and some installations cannot list a same-PC or same-LAN server in the in-game browser. An external test avoids those misleading results.
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Set matching ports in the server configuration
Choose one source of truth
Set ports either in configuration or on the command line, but do not let two launch mechanisms disagree. The equivalent settings are:
Port=7777or-Port=7777for gameplay.GameServerQueryPort=27015under[OnlineSubsystemNull]or-QueryPort=27015for browser queries.
When you change the game port to N, the pinger becomes N+1 automatically. There is no separate PingerPort switch. For example, a game port of 7780 requires UDP 7780 and UDP 7781, plus the chosen query port.
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Check the correct section
Open the server’s Engine.ini, find or create the [OnlineSubsystemNull] section, and verify the query setting there. Remove a stale [OnlineSubsystemSteam] query setting rather than assuming it still controls the current dedicated server. If you use launch arguments, inspect the actual shortcut, batch file, service definition, or host-panel command and make sure it contains the intended values only once.
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[OnlineSubsystemNull]
GameServerQueryPort=27015The exact location of Engine.ini varies with the installation method and host layout, so use the file belonging to the dedicated-server instance you actually launch. Editing a different copy has no effect.
Check listing-related server values
The server name and password are the principal listing-related fields identified in older configuration examples. Verify that the name is not blank, that a password is intentional, and that special characters have not broken the configuration syntax. There is no established evidence that ServerSettings.ini itself controls whether the server is registered in the browser; treat it as a place to verify identity and gameplay settings, not as a substitute for query-port configuration.
Forward the ports to the right computer
Reserve the server’s LAN address
Port forwarding points to a private address such as 192.168.1.50. If DHCP later gives the server a different address, the router continues forwarding to the old device and the server disappears from outside networks. Create a DHCP reservation in the router for the server’s network adapter, or configure a carefully chosen static LAN address outside the automatic DHCP pool.
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Create router rules
- Sign in to the router and open its Port Forwarding, NAT, or Virtual Server page.
- Select the server computer’s reserved LAN address, not the gaming PC that will connect.
- Create UDP rules for the game port, its next-number pinger port, and the query port. With defaults, that means UDP 7777, UDP 7778, and UDP 27015.
- If the PC server provides mods, add a TCP rule for 7777 as well. Some routers let one rule use both protocols; otherwise create separate TCP and UDP entries.
- Save the rules and restart the server. If you changed any port in the configuration, forward the new value and its automatically adjacent pinger port instead of retaining only the defaults.
Port-forwarding screens differ by router. A rule that forwards to the router itself, uses the wrong protocol, or targets a changing address will not make the service public.
Investigate the unresolved 26016 claim carefully
A Funcom forum answer has advised forwarding ports 27015 and 26016 for both TCP and UDP for Steam in-game browsing, while the official port summary identifies 27015 as the query port. The available evidence does not establish that 26016 is required by the current build. Do not add it as a universal fix or replace 27015 with it. First use the ports reported by your installed launcher and current configuration; if that build explicitly reports 26016, forward exactly what it reports and test again. Keep a record of the rule so you can remove an unnecessary exposure later.
Allow the server through Windows Firewall
Windows Firewall can block a correctly forwarded service. Create inbound allowances for the dedicated-server executable, or explicit rules for the required ports, on the network profile used by the host. Confirm both UDP game/query traffic and TCP 7777 when mod downloads are enabled. A router test cannot compensate for a host firewall drop.
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- Check that the rule applies to the active Private or appropriate network profile.
- Check that the rule targets the executable and installation you launch, not an old server copy.
- After changing ports, update the port rule or create a new one; an allowance for UDP 7777 does not automatically permit UDP 7780.
- Temporarily disabling the firewall for a controlled external test can identify the cause, but restore it immediately and create a narrow permanent rule instead of leaving protection off.
Rule out CGNAT and an unusable public address
Port forwarding works only when inbound traffic can reach your router. Some ISPs place customers behind carrier-grade NAT (CGNAT), where the address shown by the router is shared and you cannot accept unsolicited inbound connections. A changing public IP can also make a previously shared address stale.
- Compare the router’s WAN address with the public address shown by an independent “what is my IP” service. A mismatch, or a WAN address in a private or carrier-grade range, is a strong indication that another NAT layer exists.
- Ask the ISP whether the connection uses CGNAT and whether a real public IPv4 address or an inbound-capable plan is available.
- If the public address changes, update the address you give players or use a dynamic-DNS arrangement that you control.
CGNAT is not fixed by adding more local port-forwarding rules. If the ISP cannot provide inbound reachability, use a host or network arrangement that supplies a public endpoint.
Use the browser correctly after the network is fixed
Wait for registration and search without restrictive filters
Launch the server fully before searching. In the browser, clear filters that can hide a valid result, including password, community, mod, region, or name filters. Search the exact server name and allow time for the listing to refresh. A server can accept a Direct Connect before its browser record has propagated.
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Check identity and version compatibility
Confirm that the server is running the same game branch and compatible build expected by the clients. A mismatched client, password requirement, or mod collection can make a result look absent or prevent joining after it appears. The browser problem itself is still a network/query issue when Direct Connect succeeds, but compatibility checks prevent misdiagnosing a join failure as a listing failure.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Same-PC and multi-server setups need separate ports
Hosting and playing on one computer
Community guidance reports that a server and client on the same computer may need a query port other than 27015. Suggested alternatives include a game port of 7779 or 7780 with the following adjacent pinger, and query port 27016. These values are practical alternatives, not a guarantee for every build. Change the configuration, forward every resulting port, restart, and test from another network.
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A same-PC test can fail even when outside players can connect. Use an external tester before concluding that the server is unavailable.
Running more than one server
Every instance needs its own game port, its automatically adjacent pinger port, and its own query port. For example, if one instance uses 7777/7778 and 27015, the next must use a different game/query combination and you must forward those values to the same host. Do not assign overlapping pinger ports. An older 2017 community gist warned that 27025, 27026, and 27027 caused problems in its environment; that report is not confirmed for current builds, so treat those numbers as values to test cautiously rather than as a current prohibition.
Keep a written map of instance name, game port, pinger port, query port, launch arguments, and router destination. A duplicate query port can make one server replace or hide another in the browser even when both processes are running.
Quick Recap
Diagnose by symptom
| What you observe | Most likely area | Next action |
|---|---|---|
| Direct Connect fails from an outside network. | UDP 7777/7778 forwarding, Windows Firewall, wrong LAN address, CGNAT, or incorrect public IP. | Verify the launcher’s port status, reserve the LAN address, forward the exact ports, and compare WAN and public addresses. |
| Direct Connect works, but the browser never lists the server. | UDP query port, registration delay, browser filters, or query-port conflict. | Verify GameServerQueryPort/-QueryPort, forward that port, remove restrictive filters, and check for another instance using it. |
| The server appears briefly and disappears. | Changing public or LAN address, duplicate ports, intermittent firewall rules, or a process restart. | Reserve the LAN address, check server logs and launcher status, and ensure each instance has unique ports. |
| Players can join but cannot download mods. | TCP 7777 is blocked; game UDP is working. | Allow and forward TCP 7777 on PC servers that provide mod files. |
| It works locally but not for friends. | Local testing bypasses NAT; WAN forwarding or CGNAT remains unresolved. | Retest from cellular data or another household and inspect the router WAN address. |
A clean recovery sequence
- Stop the server and write down the intended game and query ports.
- Set
Port=andGameServerQueryPort=in the active configuration, or set-Port=and-QueryPort=in the actual launch command. Remove conflicting old Steam query settings. - Calculate the pinger as game port plus one.
- Reserve the host’s LAN address.
- Forward UDP game, UDP pinger, and UDP query ports to that address; add TCP game-port forwarding for PC mod downloads.
- Allow the executable and matching protocols through Windows Firewall.
- Restart the server and confirm green launcher indicators.
- From another network, try Direct Connect using the public IP and game port.
- If Direct Connect succeeds, clear browser filters, verify the query setting and uniqueness, and wait for registration. If it fails, return to forwarding, firewall, address, and CGNAT checks.
What not to change blindly
- Do not forward only UDP 7777 and assume browser discovery will work; UDP 7778 and the query port have separate jobs.
- Do not treat an old
[OnlineSubsystemSteam]value as authoritative for a current dedicated server. - Do not add 26016 solely because an older forum answer mentions it; the current requirement is unresolved.
- Do not edit a random
Engine.inicopy or rely on a launch-panel value that overrides it. - Do not judge public reachability from a same-PC or same-LAN test.
- Do not expose broad port ranges when three specific UDP ports, plus TCP 7777 for PC mods, are sufficient for the selected configuration.
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