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Inbound Connections Drop

Posted on 2006-11-20
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Last Modified: 2010-04-18
Hi,
I am having a bit of trouble with inbound connections when the server is first started and when it is left idle for a while.

When this trouble occurs the server seems to refuse all incoming connections including ping but outbound will still work. However as soon as I log in to the server and open something such as internet explorer and accesses the internet all of the inbound connections will start working.

I have this on two servers so I imagine it must be quite common but I just can not find anything on google that relates to my problem so I would really appreciate any help.

At the moment I have set the server to run a scheduled task to run a constant ping when the machine starts up so that the network activates and stays online.

Thanks,
Matt.
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Question by:talkster5
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Expert Comment

by:Jay_Jay70
ID: 17982822
do you have any security software installed on the servers? firewall packages etc?
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Author Comment

by:talkster5
ID: 17982913
Only windows firewall but everything is open fine as the machine works perfectly fine if I have a constant ping running.
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Expert Comment

by:Jay_Jay70
ID: 17983311
out of curisoity what happens if you completely disable the windows firewall
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LVL 3

Author Comment

by:talkster5
ID: 17983358
Exactly the same. The problem existed before I actually enabled the firewall.
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Expert Comment

by:Jay_Jay70
ID: 17983561
ah fair call then, i don't know what else could do this
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Author Comment

by:talkster5
ID: 17990548
Hi,
I have now set the link speed on the switch and server to 100FDX and it seems more stable but still not working correctly as far as I can see. As long as I keep a ping open on the server things seem to stay working fine but at the moment I do not want to stop the ping incase everything drops and does not come back. If I can get the KVM over IP connected then I will try a reboot as I will be able to get things back but for now are there any other ideas any one may have?

Thanks.
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by:
Jay_Jay70 earned 1500 total points
ID: 17992632
could well be a faulty NIC or a power save option on the NIC
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Author Comment

by:talkster5
ID: 17994265
Hi,
Power options are off and the NIC's are fine as both machines were runing CentOS before hand without any problems.

Thanks.
0
 
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Expert Comment

by:Jay_Jay70
ID: 18000229
Fair enough, i have no idea whats going on there
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Author Comment

by:talkster5
ID: 18048391
I never found out what the problem was but I have now coded my own fix which seems to work and keep the server online. Thanks for your help Jay_Jay.
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LVL 48

Expert Comment

by:Jay_Jay70
ID: 18049003
Wish i was of more use, well done though
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