Solution to (some) connection problems

from Demigod Forums

Hello,

After several hours trying to connect a multiplayer game, I found that my firewall was not accepting "fragmented packets" and therefore all UDP communications from server5.neowin.net (209.124.63.216) were blocked, leading to impossibility to connect to a game. The solution was to allow this type of "attack" from this IP, and it solved the problem. I can now connect to 95% of the games.

Hope it helps !

VxD

demigod
2,698 views 5 replies
Reply #1 from Demigod Forums Top

Although I myself don't really have any online issues, you might want to explain to some of the other users in step-by-step form how exactly to do what you claim to be a semi-solution.

Reply #2 from Demigod Forums Top

 

It'll be different for other software firewalls on other pc's and/or routers etc.

 

Put it this way, anything that resembles a "firewall" / "filter" in any way should be turned off on one's PC and/or any NAT-device (router) between your PC and the internet while troubleshooting Demigod connection issues.

 

Offworld Trading Company
Reply #3 from Demigod Forums Top

I really wanted to be more generic saying that some firewalls might consider some packets as attacks "fragmented packets". It is indeed useless to tell exactly how to allow it for my firewall, as there are hundreds of them. The troubleshooting was not so easy as the connection to the account, the creation of a game, and even one or two games succeeded, so I think it may help someone.

Reply #4 from Demigod Forums Top

Can you please go on this more?  How exactly did you allow the packets to go through?

Reply #5 from Demigod Forums Top

I think the first thing to do is to check into your firewall logs (you probably have to use the "expert" mode of the firewall to see the logs) that you have exactly the same problem. The packets should be highlighted as blocked by the attack detection module because of fragmented packets attack and they should come from the IP I gave above (which seems to be Stardock's provider for online game). If this is the case, then you must search in the config of your firewall how to disallow this check, and if possible, only for this IP (you don't want to expose yourself to other "attackers", as fragmented packets COULD be some form of attack on your computer). I suggest you search on the website of the firewall's editor something like "allow fragment packet" or "disable packet fragmentation check", or you can try google by adding to those keywords the name of your firewall :-p

I'm sorry not to be perfectly clear, as I don't know what is your network configuration and what is your firewall. Giving instructions for my specific firewall would be useless for 99% of people reading it.

You can send me a PM with this information, if you want, in order that I investigate further for your specific case.

VxD