"Not able to establish a connection..."

Which hub software is the best? Where can I find script XXX? Discuss it here...(no, this is not for advertising your hub...)

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DC on LAN
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"Not able to establish a connection..."

Post by DC on LAN » 2006-10-09 10:55

Hi all,

I need your help. We running a LAN party and using PtotaX as DC hub. We have had setup a DNS server for the DC hub so everyone can bookmark this hub without changing IP everytime when he comes to visit us again.

So and now my problem. All things works fine for the half of our visitors. But for the other half we have problems and no explanation how to solve it. Some of them getting this error:
Not able to establish connection because remote computer denied connection
The only workaround is that those users connect to our hub using the IP instead of the DNS name.
And this is strange, cause all the others DNS names we have (Intranet page, FTP Servers + Mirrors, Teamspeak etc.) works fine for everyone. So I think this is not a DNS issue.

Anyway this is our network setup:

Servers are in the IP range from 192.168.0.10 to 192.168.0.255
Clients have IP ranges from 192.168.x.1 to 192.168.x.255 where x stands for the number of our LAN party.

A typical client setup looks like this:
IP: 192.168.6.32
Subnet: 255.255.0.0
DNS: 192.168.0.10
WINS: 192.168.0.10

Any helpful ideas what happens there?

TheParanoidOne
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Post by TheParanoidOne » 2006-10-09 14:18

Does "nslookup <DNS name of hub>" resolve to the correct IP address?
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DC on LAN
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Post by DC on LAN » 2006-10-09 14:25

Yes it does resolve the correct ip address. A ping with the DNS name works too.

TheParanoidOne
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Post by TheParanoidOne » 2006-10-09 14:51

DC++ does not do anything special to resolve the addresses, so it should work, seeing that nslookup does. If you are sure that it is not working, it might be time to fire up Wireshark and see exactly what's happening on the machines in question.

Is it always the same machines that have problems?
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DC on LAN
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Post by DC on LAN » 2006-10-09 19:49

Can't tell you if its always the same machines but it seems not. You have to know that everything else works fine. The machines in questions couldn't connect to the hub but could get on our intranet page, FTP-server and so on.

Someone told me awhile ago that the problem might be that we were running the DC hub on a normal Windows XP pro version and that all non-server versions of Windows might have limited connection settings which can't be overwritten. So we moved the hub on a Win 2003 server and we still encounter the same problem.

What I can tell is that I setted up 10 virtual machines and fired them on the hub and no problems i encountered.

Btw: What is Wireshark?

PseudonympH
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Post by PseudonympH » 2006-10-09 20:20

Wireshark (formerly Ethereal) is a program that allows you to see all the packets sent to/from the computer it's running on.

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