Solved COD MW3 lan server "Unable to connect to host"

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Exilion

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I have few PCs in my house and I am trying to play on lan due to my internet being laggy af
I had the game with all updates and patches so I copied it to all the other PCs

Online works great, each PC can connect and all of us played on [ks] HC Dome but it was laggy so most of us got kicked

I disabled my firewall, my anti-virus, my windows firewall, fresh installed the game and the updates and tried read so many threads on Tekno Gods but still no luck with the server

any idea on what might be the issue here?
 

LeiTRoSaS

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Not sure what u wanna do. Want to set a dedicaded server? U download the client and server tekno patch?
 

Exilion

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yes im trying to setup a dedicated lan server, I downloaded the server patch and the client patch but nothing works
 

LeiTRoSaS

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In teknogods forum u didnt find anything in sector for dedicaded server that help u?. Maybe some net ports issue
 

Exilion

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I read a lot of teknogods threads but no good
for a lan setup I dont think ports should be an issue but i did forward them and still unable to connect
 

Stallone

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I have few PCs in my house and I am trying to play on lan due to my internet being laggy af
I had the game with all updates and patches so I copied it to all the other PCs

Online works great, each PC can connect and all of us played on [ks] HC Dome but it was laggy so most of us got kicked

I disabled my firewall, my anti-virus, my windows firewall, fresh installed the game and the updates and tried read so many threads on Tekno Gods but still no luck with the server

any idea on what might be the issue here?
You need to have 2 folders, one for MW3 and another for MW3 Server because they use diferent TeknoMW3.dll files, so you need one to play only and another for the dedicaded server. If you want to talk more go to Discord and message me
 

Exilion

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I already have two folders, one for server and one for client
give me your discord name and i will contact you
 

Stallone

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Sep 5, 2016
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41
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Portugal
I have few PCs in my house and I am trying to play on lan due to my internet being laggy af
I had the game with all updates and patches so I copied it to all the other PCs

Online works great, each PC can connect and all of us played on [ks] HC Dome but it was laggy so most of us got kicked

I disabled my firewall, my anti-virus, my windows firewall, fresh installed the game and the updates and tried read so many threads on Tekno Gods but still no luck with the server

any idea on what might be the issue here?
try this https://www.dropbox.com/s/1gon3ob7vfl67yc/Server.rar?dl=0
 

neRo!

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What's your server console saying about discovering the external IP ?
  • Problem: When I start my server, it says "Discovering external IP address..." and then the loopback address is shown (127.0.0.1)
  • Solution: You're using the older DLL (the initial release of TeknoMW3 2.7.3.11 had this issue). Download the official server files from this post.

  • Problem: When I try to connect to my server, it says "Unable to connect to host"!
  • Solution: First make sure your server is visible in the browser (see above for common fixes); solving that issue will also typically fix any "unable to connect to host" errors you're getting when attempting to direct-connect. Otherwise, please make sure you forwarded the net_port (by default, 27015) for the UDP protocol. Check that the port is forwarded to the right IP (i.e., that your host computer's IP is the same one you used for the port forward rule). Also, make sure iw5mp_server.exe is added as an exception to your Windows Firewall configuration. If you're sure the reason lies elsewhere, it could be caused by a buggy InfinityScript plugin; try running your server without any plugins and see if that helps.

Common Errors: https://teknogods.com/phpbb/viewtopic.php?f=40&t=37789

Check if your ports are forwarded here: http://www.canyouseeme.org/
 

Exilion

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Sep 8, 2016
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I got an error saying "Component 'COMCTL32.OCX' or one of its dependencies not correctly registered: a file is missing or invalid.

What's your server console saying about discovering the external IP ?

I get the following

Welcome to TeknoGods.
TeknoMW3 version 2.7.3.11 beta, built Oct 29 2015 @ 01:23:21
Ban database successfully initialized.
Discovering external IP address. Done (xx.xx.xxx.xxx).
Connecting to online services....
Connected to online services.
Executing server config "server.cfg"

/edited
 

neRo!

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I got an error saying "Component 'COMCTL32.OCX' or one of its dependencies not correctly registered: a file is missing or invalid.



I get the following

Welcome to TeknoGods.
TeknoMW3 version 2.7.3.11 beta, built Oct 29 2015 @ 01:23:21
Ban database successfully initialized.
Discovering external IP address. Done (xx.xx.xxx.xxx).
Connecting to online services....
Connected to online services.
Executing server config "server.cfg"

/edited -neRo!
Seems like everything is okay with discovering your external IP.

- In your firewall: exception for iw5mp.exe (which is in your server folder), or try to disbale it temporarily to check if it would work.
-Maybe disable anti-virus and try if it's the problem.

- If you already did these two things, make sure you ports are forwarded properly. http://www.canyouseeme.org/

I also read anywhere that you should join your server via LAN if it's running on the same machine, not Internet. Else your mates would get this error if they join via Internet.

Btw, I edited your post as you showed off your IP. I removed it because you shouldn't post your IP in the public.
 

Exilion

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Firewall already has exceptions for the iw3mp_server for both public and private networks
Disabled both my anti-virus and firewall but still not connecting
As for the ports on the router it has been setup but from that website its not working, my router is Huawei B315
 

neRo!

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Firewall already has exceptions for the iw3mp_server for both public and private networks
Disabled both my anti-virus and firewall but still not connecting
As for the ports on the router it has been setup but from that website its not working, my router is Huawei B315
iw3mp.exe = cod4
iw5mp.exe = mw3 .. You should go for this in your case ;)

Your ports have to be forwarded properly, maybe there is a problem with forwarding at your router.. I remember that I also got problems to get ports open on my inet..
 

Exilion

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miss typed the number :p
wish it was as easy as cod 4 tho
so port forwarding is necessary even if all players are on the same network?
 

Exilion

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My ISP seems to have me behind another network, so port forwarding is never going to work unless I buy a static IP
 
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