Cathode

HTTP can run over udp. And sometimes it used. Thx for help. I will check iptables after NY.

TCP or UDP?

Which port is used for MercuriusUpdater socket? I have some tomcat instances and default 8080, 80 are busy.

Yep. And firewall do not block outgoing connections.

I get this error every day. Forge version 1.11 - 13.19.1.2189 and all previous 1.11 versions also affected. What Mercurius does? And how i can fix this? [16:06:40] [MercuriusThread/INFO]: [sTDERR]: java.net.ConnectException: Connection timed out (Connection timed out) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at java.net.PlainSocketImpl.socketConnect(Native Method) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at java.net.Socket.connect(Socket.java:589) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at java.net.Socket.connect(Socket.java:538) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.NetworkClient.doConnect(NetworkClient.java:180) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.http.HttpClient.openServer(HttpClient.java:432) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.http.HttpClient.openServer(HttpClient.java:527) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.http.HttpClient.<init>(HttpClient.java:211) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.http.HttpClient.New(HttpClient.java:308) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.http.HttpClient.New(HttpClient.java:326) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1022) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1020) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at java.security.AccessController.doPrivileged(Native Method) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at java.security.AccessController.doPrivilegedWithCombiner(AccessController.java:782) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1019) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1316) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.protocol.http.HttpURLConnection.access$100(HttpURLConnection.java:91) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.protocol.http.HttpURLConnection$8.run(HttpURLConnection.java:1283) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.protocol.http.HttpURLConnection$8.run(HttpURLConnection.java:1281) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at java.security.AccessController.doPrivileged(Native Method) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at java.security.AccessController.doPrivilegedWithCombiner(AccessController.java:782) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1280) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at net.minecraftforge.mercurius.Sender.post(Sender.java:125) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at net.minecraftforge.mercurius.Sender.access$000(Sender.java:25) [16:06:40] [MercuriusThread/INFO]: [sTDERR]: at net.minecraftforge.mercurius.Sender$1.run(Sender.java:103)