Black Ops 2 Server Connection Problem

[nxs8739]

indeed. thre only thing i can think of then is cg-nat. i have a open NAT by default in most games and when i hopped on bo2 it was a moderate nat, so your home NAT very well might be strict. if that is the case that is exactly what the issue is. the game is having problems traversing your network and finding its destination.
cg-nat works well for everyday tasks on internet but for games and p2p applications it is a living hell/nightmare

[zekeNNN]

nxs8739 said in Black Ops 2 Server Connection Problem:

indeed. thre only thing i can think of then is cg-nat. i have a open NAT by default in most games and when i hopped on bo2 it was a moderate nat, so your home NAT very well might be strict. if that is the case that is exactly what the issue is. the game is having problems traversing your network and finding its destination.
cg-nat works well for everyday tasks on internet but for games and p2p applications it is a living hell/nightmare

Now that you said so, I tried it by connecting the phone internet and it connected directly to the “Online” section. So how do you think I can do this with home internet?

[nxs8739]

1. Check for Server-Side NAT Solutions
   NAT Traversal Techniques: Some dedicated servers and gaming platforms implement NAT traversal techniques. Verify if the dedicated server software or hosting service provides NAT traversal support or configuration options.
2. Utilize a VPN or Tunnel Service
   VPN Tunnel: Use a VPN service with a public IP to create a tunnel between the clients and the dedicated server. Both the clients and the server can connect through this VPN, bypassing CGNAT restrictions.
   VPN for Game Server: If the dedicated server is hosted on a VPS or cloud service, setting up a VPN on that server and having clients connect via the VPN can help.
3. Public IP from Hosting Provider
   Request Public IP: If possible, ask the server hosting provider if they can offer a public IP address or a way to bypass CGNAT for the dedicated server.
4. Use a Proxy or Relay Server
   Proxy Solutions: Implement a proxy or relay server that clients can connect to, which then forwards the connection to the dedicated server. This can help in scenarios where direct connectivity is restricted due to CGNAT.
5. Configure Firewall and Port Forwarding
   Server Configuration: Ensure that the server's firewall is configured to allow traffic through the necessary ports. Even with CGNAT, properly configuring the firewall can sometimes help in managing connection issues.
6. Consult Hosting Provider for Solutions
   Technical Support: Contact the server hosting provider’s technical support team for advice. They may have specific solutions for dealing with CGNAT and ensuring that clients can connect reliably.
7. Test Different Network Configurations
   Alternate Networks: Test the connection from different networks, if possible. This can help determine if the issue is specific to certain network configurations or if it's a broader issue with CGNAT.

Since youve done most of these here im betting using a vpn will do the trick.

Basically it fools the game into thinking you dont have cg-nat because the vpn tunnel automatically finds the route for you.

[zekeNNN]

nxs8739 said in Black Ops 2 Server Connection Problem:

1. Check for Server-Side NAT Solutions
   NAT Traversal Techniques: Some dedicated servers and gaming platforms implement NAT traversal techniques. Verify if the dedicated server software or hosting service provides NAT traversal support or configuration options.
2. Utilize a VPN or Tunnel Service
   VPN Tunnel: Use a VPN service with a public IP to create a tunnel between the clients and the dedicated server. Both the clients and the server can connect through this VPN, bypassing CGNAT restrictions.
   VPN for Game Server: If the dedicated server is hosted on a VPS or cloud service, setting up a VPN on that server and having clients connect via the VPN can help.
3. Public IP from Hosting Provider
   Request Public IP: If possible, ask the server hosting provider if they can offer a public IP address or a way to bypass CGNAT for the dedicated server.
4. Use a Proxy or Relay Server
   Proxy Solutions: Implement a proxy or relay server that clients can connect to, which then forwards the connection to the dedicated server. This can help in scenarios where direct connectivity is restricted due to CGNAT.
5. Configure Firewall and Port Forwarding
   Server Configuration: Ensure that the server's firewall is configured to allow traffic through the necessary ports. Even with CGNAT, properly configuring the firewall can sometimes help in managing connection issues.
6. Consult Hosting Provider for Solutions
   Technical Support: Contact the server hosting provider’s technical support team for advice. They may have specific solutions for dealing with CGNAT and ensuring that clients can connect reliably.
7. Test Different Network Configurations
   Alternate Networks: Test the connection from different networks, if possible. This can help determine if the issue is specific to certain network configurations or if it's a broader issue with CGNAT.

Since youve done most of these here im betting using a vpn will do the trick.

Basically it fools the game into thinking you dont have cg-nat because the vpn tunnel automatically finds the route for you.

Dude, I'm sorry, I haven't turned on the computer for 2 days, so my answer is a bit late.

I thank you very much for your time and detailed help. I will get back to you after I try these methods. If there is a part that I am stuck afterwards, would you mind if I ask you again?

[brysondev]

For anyone else who found this thread and needed an answer, disable teredo/IPV6 in windows settings.

Win+R -> Type: "services.msc" -> Locate "IP Helper" service -> Right Click -> Stop

[SodaLord]

brysondev it didnt work

[zekeNNN]

I was able to solve this problem by connecting to the phone's internet from the computer.

On 2 computers we had the same problem, but on both desktop and laptop we were able to get past the “Connecting to Online Service” section by connecting to the phone's internet. You can also connect to the phone's internet via cable on the desktop. Then you can continue by connecting to your normal internet after skipping the “Connecting to Online Service” section.

[STVFY935]

This post is deleted!

[FLEXUSAURS]

brysondev said:

For anyone else who found this thread and needed an answer, disable teredo/IPV6 in windows settings.

Win+R -> Type: "services.msc" -> Locate "IP Helper" service -> Right Click -> Stop

i know for sure my router has local network level NAT, disabling ipv6 via stopping this service worked,
worth also trying to turn it off from the network interface settings on windows, maybe the game's networking process binds directly to the network interface and accidently binds to an unsupported ipv6 interface ip

[Christ_Official]

brysondev ty so much