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Try "ipconfig /renew " command from the command window or run the command from START button.

1- HUBs have fixed port properties , 10 or 100 MBPS. While switch ports in many instances have AUTONEG property. That is they try to negotiate speed 10/100 MBPS, flow control, HDX/FDX. If the PC NIC and the switch port cannot agree than no connection is established. 2- The...

This might be an ARP timeout issue ore something else.To really understand the problem we need the network configuration etc. At least check hwo the connection goes through. Sometimes if redundancy kicks in, in some cases you might lose connection for some time until the new port on the...

As an ex-AVAYA Engineer I can tell that S8300 is a good product. Based on what you ordered you will need some training to configure and use them expertly. On a user level it is almost plug and play! I would suggest playing with them in the lab and first opening the Quick start guides before...

I would elaborate more on the problem: 1- What exactly is connected to the first HUB in addition to the server? 2- What exactly do you mean the network died when you used two switches? It can mean a lot of things. Assume you connected the server to Switch#1 and this switch is connectd to...

Every additional traffic causes uses up bandwidth and increases the collision probability. 1- In HUBs, old coax installations 2- Switch ports in HDX mode

I would do the following: 1- Check the ARP table of your Server. 2- Maybe there is an application that activates the ARP requests in your machine. 3- Check the period of the ARP request packet for each specific address. If it is , 3 seconds which is the default for ARP timeout then change...

1- Use two sniffers(network advisors, one right out of the client machine and another roght out of the server. Check if you see the phenomena. If you do not , the problem must be somewhere in the network.An equivalent experiment would be to cross connect direcly the client and the server. 2- So...

I do not know a way to configure both in WK2000. What you can do is using batch file and simply switch from one config to the other by simply running the batch file in the command mode. You need to use the netsh.exe utility. More much detailed info can be found at...

In addition to the code please display the return code for select. The error codes are meaningful. The following is a short list: WSANOTINITIALISED A successful WSAStartup() must occur before using this API. WSAEFAULT The WinSock implementation was unable to allocate needed resources for its...

The statis/assigned port numbers are listed/updated at http://www.iana.org/assignments/port-numbers Well know protocols such as ftp, tftp, telnet all have specific port numbers. It is correct that normally the riginationg port is dynamic and the destination is static/prefixed. But it is also...

It is best to put the NICs to a specific speed/mode than autoneg. That way you do not have to worry about incompatibilities between networking NICs/Switches/equipment. There is a systemwise/management issue that need to be taken into account: If your NIC is set to a specific speed but the port...

Theoretically anything can happen: data getting lost, changed. It all depends on the data transfer protocol you are using.I am inclined to believe that your data transfer application will give you an error and/or prompt you if data is lost or corrupted . What protocol/application are you using...

One Vlan to Elan mapping yes! You can have more than one LES/BUS pairs.There are switches that have proprietary distributed LES/BUS pairs or redundant LES/BUS es. There can only be one LECS in an administrative domain but here again a resilient/proprietary solution is possible. The difference...