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TCP/IP Connection Problem

By mapicsman ·
I am running NT V4.0 Server and want up to 400 PC's to connect to the server on a single
port. Everything is fine until more than 63 devices connect at once. Are there any settings in NT that allow efficient handling of large numbers of connections?

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TCP/IP Connection Problem

by jadavid In reply to TCP/IP Connection Problem

What subnet mask are you using? In a Class C IP address, you can only assign, at most, 254 hosts to a subnet, assuming the stnadard subnet mask of 255.255.255.0. This number can be increased, or lowered, by changing the subnet mask.

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TCP/IP Connection Problem

by mapicsman In reply to TCP/IP Connection Problem

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TCP/IP Connection Problem

by bgreenwood10 In reply to TCP/IP Connection Problem

I think the first thing you should check is your license manager and see if you have reserved enough licenses on the server because this is the easiest to check.

If that is good, are you using an internal IP range or have you bought your range? If it is an internal, say 192.168.0.0, you could assign a subnet mask of 255.255.254.0 will give you 512 host IP's.

If you are purchasing your IP's you need to let your provider know your situation.

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TCP/IP Connection Problem

by mapicsman In reply to TCP/IP Connection Problem

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TCP/IP Connection Problem

by aekland In reply to TCP/IP Connection Problem

What is the actual problem you are having? By port, are you refering the physical connection or the tcp port? What happens when more than 63 attach, does it slow down, drop connections? Problems can occurr from having low memory or having the serverservice set incorrectly. If the connection is high bandwidth perhaps the nic is acting as a bottleneck or the cpu cannot keep up with the requests. You can set several perfmon objects to track to better determine the location of the problem. Post some more details.

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TCP/IP Connection Problem

by mapicsman In reply to TCP/IP Connection Problem

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TCP/IP Connection Problem

by mapicsman In reply to TCP/IP Connection Problem

By port I mean TCP port. There are 92 clients that connect to the server using one ip address and one TCP port. The server then picks up data from each of the clients. All 92 clients appear to make the connection but the server stops communicating to the clients once it picks up data from the first 63 that connect.

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TCP/IP Connection Problem

by mapicsman In reply to TCP/IP Connection Problem

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