[Tutorial]Port Forwarding (a.k.a. clients cannot connect)

[HotleadColdfeet]

Hello all!

I am using a Microtik routerboard and have forwarded these 3 ports:
30033
10011
9987

I have both TCP and UDP open for all 3. I've also given my friend my IP address because he is not on my LAN.

When I check my ports here they can see activity on all the ports but 9987 when I have the server application running. I've also tested running multiplayer game servers which use different ports. My friend is able to connect to these, so my port forwarding is working.

Despite all these things, he is unable to connect to my Teamspeak 3 Server.

I've been working on this for over a week now, so any advice would be appreciated.

Thanks!
- HotleadColdfeet

[chrisjudd]

Running Ubuntu Server w/ Plesk and have a firewall rule to allow the correct port, had people connected and then randomly after a few hours no one could connect.

Nothing else changed on the server, I've restarted my server, service has been restarted multiple times, not sure what else could be going on.

[dante696]

tray.geboy1
Maybe the ip of server has changed?
Are you connecting to right IP, when you use a DNS for connections?

HotleadColdfeet,
These websites can't validate UDP ports.
Make sure you have forwareded the port for UDP only and for right IP in your LAN in your router.

chrisjudd
I have no idea either. you may check your router/firewall logs if there was an attack.
Or maybe the hoster wasn't availbale?

[JackOff72]

Hi guys, i'm new to making a server, i created one and set permissions and lots of stuff, but if i understand correctly an unlicensed version will still work for me and three to four of my friends? i sent my friend the IP and i sent him a link to open the server but it keeps giving error, can someone help? am i undersdtanding the Unlicensed part wrong or did i do something wrong, or maybe i didnt do something, really need help please. Otherwise we have to join other servers and always need talking power and stuff so we just want our own little place.. so any help will be appreciated, thanks.

[bailenforcer]

After trying a few server rentals and having unsatisfactory service and performance issues I installed my own server here. I can log in local host with an issue but when trying to log in via the internet I got in once then after that I get.... <16:32:00> Failed to connect to server

tried turning off windows firewall and still same result, .. <19:52:00> Trying to connect to server on XX.XXX.XXX.154
<19:52:05> Failed to connect to server

my IP address is valid
password or no password same result.
router has 9987 open UDP
Windows 7 Home Premium sp 1


Can anyone give me ideas? I have a couple friends that need to log in my server. at this moment I am baffled.

[dante696]

It's 9987 UDP and not TCP.
And you need to use localhost or your LAN IP for your own collection.

[bailenforcer]

I meant UDP ..sorry! It is set to UDP.

I use the localhost for me but others in another state can not log in and I was testing it by trying with another machine. Failed to work for anyone trying my IP address...

It's 9987 UDP and not TCP.
And you need to use localhost or your LAN IP for your own collection.

[theblacksenpai]

Today I opened up a server. I port forwarded all the requiring ports, but my friends still can't join. Only I can

[martin35e]

Today I opened up a server. I port forwarded all the requiring ports, but my friends still can't join. Only I can

im have the same probs mine work great till a day ago then this prob came up

[NishantGaming46]

Guyz I created a server of teamspeak and did it all correctly. But my friends cant connect my server. I think we are doing something wrong help me

[Jongunner]

Hi there.

I'm trying to make a TS3 server on my windows virtual machine. I am able to connect via localhost, but when I return to my normal machine, I try to connect via the ip that displays on whatsmyip.org it just says "Failed to connect to server".

The ports I've allowed through 'Inbound' on the server firewall are:

UDP Port 9987 inbound
TCP Port 10011 inbound
TCP Port 30033 inbound

What am I doing wrong? My VPS is a Windows 2012 R2 if this helps?

I don't think this is a firewall issue as I've disabled Firewall in total (Temporarily for testing purposes) and still can't connect.

[Jongunner]

Hi there.

I'm trying to make a TS3 server on my windows virtual machine. I am able to connect via localhost, but when I return to my normal machine, I try to connect via the ip that displays on whatsmyip.org it just says "Failed to connect to server".

The ports I've allowed through 'Inbound' on the server firewall are:

UDP Port 9987 inbound
TCP Port 10011 inbound
TCP Port 30033 inbound

What am I doing wrong? My VPS is a Windows 2012 R2 if this helps?

I don't think this is a firewall issue as I've disabled Firewall in total (Temporarily for testing purposes) and still can't connect.

Not sure why this was merged when the answer isn't in the post? I've looked through each post and the reason for merge doesn't help?

I connect with the LAN IP/Localhost (Connected both ways), but on my own PC/friends cannot connect using the outgoing/external IP address. I've opened every port needed, several more from the above list.

[dante696]

It was merged to the other threed, because yyou only mmentioned your own PC can't connect to the external IP.
That is a normal case, when the server machine is in the same LAN network or running on the same pc.

Which server version are you using and wgat is the server listening to? Can be found in server log 0 and 1.

[ehsansh]

Hi,
When I want to connect my TeamSpeak server it tells me: Failed to connect to server.
But my TeamSpeak Server is running and I can ping my server.
What is my problem and how to find out the problem?
Here is the server log:

2016-09-21 16:34:16.122136|INFO    |ServerLibPriv |   |TeamSpeak 3 Server 3.0.13.3 (2016-08-18 16:46:43)
2016-09-21 16:34:16.122136|INFO    |ServerLibPriv |   |SystemInformation: Windows Server 2008 R2 SP1 (7601) x64 (AMD or Intel) Binary: 64bit
2016-09-21 16:34:16.122136|INFO    |ServerLibPriv |   |Using hardware aes
2016-09-21 16:34:16.122136|INFO    |DatabaseQuery |   |dbPlugin name:    SQLite3 plugin, Version 3, (c)TeamSpeak Systems GmbH
2016-09-21 16:34:16.122136|INFO    |DatabaseQuery |   |dbPlugin version: 3.11.1
2016-09-21 16:34:16.122136|INFO    |DatabaseQuery |   |checking database integrity (may take a while)
2016-09-21 16:34:16.137736|WARNING |Accounting    |   |Unable to find valid license key, falling back to limited functionality
2016-09-21 16:34:17.416938|INFO    |              |   |Puzzle precompute time: 1263
2016-09-21 16:34:17.416938|INFO    |FileManager   |   |listening on 0.0.0.0:30033, :::30033
2016-09-21 16:34:17.463738|INFO    |CIDRManager   |   |updated query_ip_whitelist ips: 127.0.0.1/32, ::1/128, 
2016-09-21 16:34:17.463738|INFO    |Query         |   |listening on 0.0.0.0:10011, :::10011

[CoronalWind]

It stopped working on Wensday its been 7 days please help

ts.knightgaming.net

<13:04:00> Trying to connect to server on 104.244.5.50
<13:04:06> Failed to connect to server