By Vivian / Last Updated December 3, 2021

Seek for ways to free remote into multiple computers

"Due to my work, I need to log into multiple computers at the same time. For example, in a mainframe room with 30 computers, I have to access each computer remotely to get my work done. What should I do now to access multiple computers remotely? It’s better to be free."

Remote Desktop Connection (RDC) is not too complicated in either LAN or WAN environments, but if you want to connect multiple computers, you need some extra settings. In the next part, a detailed description of how to set up remote access to multiple computers to ensure a smooth RDC will be demonstrated for you.

How to set up RDC to remote into multiple computers?

If you want to remote into multiple computers, then RDC is a good choice. Setting up port forwarding correctly will enable remote control across the network. However, each port only works for one computer, which means that if you want to connect to multiple computers at the same time, you must create a new port on each computer separately and then change the router accordingly to enable remote access to multiple computers. To do this, you must follow these steps to set it up.

Method 1. Change the RDP port number in Registry Editor

Step 1. Press Windows + R to and then type "regedit" to open the Registry Editor.

Run Box Regedit

Step 2. Navigation:

 HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\ControlTerminal Server\WinStation\RDP-Tcp

Port Number

Step 3. Double click on "PortNumber" in the right pane and tick "Decimal". The default port number is 3389, but you can change it to any other value, for example to 3388 (it is recommended to add or subtract from 3389 to remember).

Change Port Number to 3389

Note: Since the purpose is to remote into multiple computers, then in addition to changing the different port numbers, writing down the port number corresponding to each computer for subsequent remote connections to multiple computers is necessary.

Method 2. Allowing the port to go through the firewall

Step 1. Press Win + R and type "control panel" and hit OK.

Run Control Panel

Step 2. Click on “System and Security” and then find "Windows Defender Firewall". Click on Advanced settings.

Advanced Settings

Step 3. Double-click on "Inbound Rules" and then select "New Rule".

Inbound Rules Firewall

Step 4. Select "Port" in the "Rule Type" screen, and click "Next".


Step 5. In the "Protocol and Port" screen, select "TCP", and enter the port number, such as 3327, and click "Next".


Step 6. Select "Allow the connection" in the "Action" screen, and click "Next". In the "Profile" screen, check the "Domain", "Dedicated" and "Public" options according to your needs and click "Next".

Confirm Check

Step 7. In the "Name" screen, enter the name of the new port, and click on "Finish".

RDP Port-3327

Note: Since there is more than one computer connected, and each computer has a different port number, the operation of changing the RDP port needs to be done on each remote computer separately.

Method 3. Assigning ports through the router

Step 1. Open the router configuration interface and find the Single Port Forwarding section.

Single Port Forwarding

Step 2. Enter the port number used to identify the computer or registry changes. For example, Desktop for the local computer and Laptop and Joe's PC for other remote computers.

Change Port Number

Step 3. We also need to find the IPv4 address of each computer and assign it to the corresponding port number. Press "Win + R" and type "cmd", hit OK, and type "ipconfig" to find the computer's local IP address of the computer.

Find the IP Address

Method 4. Connecting to the new port

Step 1. Search Remote Desktop Connection in the search box.

Remote Desktop Conenction

Step 2. In the "General" tab, enter the IP address and user name of the host computer, and then click "Connect" (you need to follow the "IP address: port number" format).

Label the Port Number

Step 3. In the Windows Security pop-up window, enter the password under this user name and click "OK".

Windows Security

Step 4. Click Yes for the Authentication pop-up window to successfully establish a remote connection.

Click on Authentication

AnyViewer: A strong software for remote into multiple computers

RDP can meet your basic needs for remote control, but when connecting to multiple computers across a network, it involves registry modifications and port forwarding, making the operation much more difficult and less friendly for most users. If you happen to have the need to access multiple computers remotely, or you think the above connection method is too complicated, you can try AnyViewer, a free third-party remote control software.

Compared to RDP, AnyViewer has the advantage of setting up remote access to multiple computers without setting up port forwarding or modifying the registry, which is better in perspective of convenience and security. And it’s workable for multiple Windows versions Windows 11/10/8.1/8/7 and Windows Server 2022/2019/2016/2012 R2.

Download Freeware Win 11/10/8.1/8/7/XP
Secure Download

Step 1. Download and install AnyViewer on all the PCs that need to connect remotely. Open it and find the device ID and Settings.

Temporary Code

Step 2. On the host PCs, click on Settings and then choose Recipient, choose 3rd option “Set my security code” and then type the security code, click on “OK”. Return to the main interface

Accept Remote Control

Step 3. On the client PC, click on Settings> Controller, tick “Save the security code” and click on OK ( so that you can connect directly next time). Return to the main interface.

Save the Security Code

Step 4. On the client PC, input one of the host PCs you want to connect, and then enter the device ID of the host PC, click on Connect.


Step 5. Choose Input security code for the pop-up window on the client PC, enter the security code and click on OK.

Security Code

Note: If there’s someone in the end to accept remote control request, you can choose to Send a control request.

Step 5. The connection of one of the PCs is successful. Follow the above steps again to connect to multiple computers.

Remotely Access Multiple Compputers