The hub LAN is not available, and the networking problem is the hub

1. Try to change the network cable to another port.

2. Turn off the other machine that can be used, and set this to that configuration.

3. Uninstall the network card, try to change the slot.

4. Insert an extra network card and try to reset it.

Don't talk nonsense about the above, the hub doesn't need to set up a network manager, and his adsl cat may be routed.

You can also connect to the router to see if the DHCP allocates the address, the address range, and whether the MAC is bound.

You should set up a host, and other machines will access the Internet through the host, and it doesn't work the same way as routing, so it's not the same.

Set one of the machines in your door as the host, and the gateway doesn't care about it, just like the Internet café is set up, just like your machine is a server.

Host; Subnet mask.

Extension 1:; Subnet mask.

Extension 2: Subnet mask.

Once the analogy is set, it's fine.

If you want to share on the local area network, you have to set up the management on the computer to be accessible without a password, so that you can share.

After changing the name of the IP of the host, the connection that can access the Internet of the shared host.

Set it up to allow other machines to access the Internet through that console.

The rest of the IPs are changed to:

But the gateway DNS is not set up.

Adding a LAN to the control panel will create a file that you can run on other machines.

Do you still use a gateway for the first time I heard of it.

Change everything to auto-get.

You also have to look at the network cables, because the cable that connects the route is different from the cable that connects the hub, and the network cable should be b-a, not b-b

Just leave the gateway blank at all.

There are many things you can't be sure of in your description, so I'll give you the answer according to your own speculation:

1. If all four can access the Internet, only yours is relatively slow, it should be caused by unreasonable network architecture, it is recommended to change to a switch or a router with a switching function, and set it to DHCP to automatically assign an IP address to surf the Internet, and the effect is much better than using a hub.

2. Your computer can't access the Internet, no problem with other people, you check if it is caused by the repeated conflict between your IP address and the IP address of the new computer, if so, modify the IP address of one of the computers.

The hub is replaced with a switch. Or try changing the IP address.

Is there a conflict of IP addresses?

**device: This concept is more general, it can be said that other devices are called **device, but there is a narrow term is a layer one device, which does not provide data**, only provides the transfer of bit streams.

Hub: Layer 1 devices, all devices are in the same conflicting broadcast domain, all devices are assembled, and the maximum bandwidth of the frame is provided, which can only provide a maximum of 10M.

Bridge: Strictly speaking, it is a layer 2 device with its own collision domain, in the same broadcast domain, a bit like a switch.

Bridge: A type of bridge.

Switch: Layer 2 devices (Cisco can also be Layer 3 switches), each port is a collision domain, all devices are in the same broadcast domain, providing packet forwarding and MAC addressing. Provides 10-100-1000M bandwidth.

Router: Layer 3 device (Cisco refers to Layer 3 switch or a commercial product of switch), each port has its own broadcast domain and conflict domain. Provides logical addressing, packet**, filtering, paths, and other functions to connect different network segments into internetwork interconnection.

Bridge: I haven't heard of it, but it's probably a bridge with routing, or a simple router.

Gateway: This thing has a broad concept, let me give a simple example, for example, if the people in your classroom have to leave the classroom after class, then they must pass through the door, and this door is like a gateway, and the classmates are the data packets. Here you can simply think of it as an outbound interface from one network to another.

If you don't understand, just q me, 78111148

There are many reasons, first of all, it is ruled out that it is a problem on the telecom side, and I will help you analyze it.

1.When an office network can't dial out, check your hub.

2.When dial-up in several offices cannot be dialed out, it may be that the Huawei switch connected to the optical fiber is broken or the hubs in your offices are faulty.

3.When all the networks can't be dialed out, it must be a Yuheng loop (broadcast storm) or a Senqing Huawei switch is broken.

Checking the hub is nothing more than restarting the hub and trying to change a few more interfaces. If it still doesn't work, you can take the hub in your good office and replace it when you're sure it's broken. You can't fix it, there's no need to fix it, that thing is too cheap, the performance is not good, and when the hub is used for a long time, there are many problems, or the switch is better!

As long as there is no loop, you replace the hub with a switch, which must be a vain hold, and it is estimated that your company is reluctant to spend this money, the most common Huawei, Cisco's switch is also thousands!