Problems with local area networks, problems with local area network networks

The first possibility is that the firewall has turned off the shared port, and the landlord should pay attention to the settings.

The second possibility is the problem of sharing permission settings, click on the shared file to see if there is everyone in the permission to allow access (appears on the folder share of the NTFS partition).

The third possibility, account setting problems, set both computers as administrators, and check whether the guest account is banned.

Fourth, in the local connection attributes, the file and printer sharing in the network are not checked.

Finally, if you have two computers, A and B, and A wants to access B, you can add an account with the exact same name that A is currently using to access B.

You can give it a try.

There are many possibilities for this problem.

What system do you use?

If you don't have a password, you can't access it, and if you have a password for the XP system, you can only access the sharing if you set a password for the account. You will be prompted to enter your account password when you connect.

You said it"Access"--Is it access to shared files? In the runtime, type:

The other party's IP address can be accessed ---! The IP addresses of the two computers should be set in the same network segment.

Some ghost versions of the system have turned off password-free sharing in order to improve security

If you know the computer, change it in the group policy, if you don't understand, find one on the Internet and open the LAN sharing (password-free).

Control Panel--- Management Tools--- Local Security Settings--- Local Policies--- Find (Access the Computer from the Network) in the User Rights Assignment and double-click to add users.

As you described, your network uses the DHCP address pool to get addresses. In this case, it is almost certain that the DHCP address pool has been flushed out, which is why the reserved address is acquired. (Suspected of being infected with the ARP virus).

Your description is inadequate, since it is an enterprise network, it is recommended to reorganize it:

1. The network structure, whether the Layer 3 switch is used.

Two address pools. Do you use VLANs?

2. If not, then where did DHCP come from?

Can you simply sketch the topology and mark the interface of the device where the gateway is located?

Only by knowing the above can we be accurate.