After the virtual machine is installed on the student machine, the Polar e Classroom cannot broadcas

First of all, it depends on the version you are using:

Polar is a version of , with a virtual machine installed.

Finally, there are two more network cards (vnet1 and vnet8), and the IP address of the network card is used in the student side.

Sort if the IP address is set to a better than the virtual NIC.

The first one has become a virtual network card, and the student side is tied to the first (virtual) network card. After entering the student terminal and selecting the physical NIC address to be bound, the student terminal will automatically re-run, and you can log in to the teacher's side and broadcast.

Generally speaking, the student side can be tied to the physical network card, and the student side can log in to the teacher's side (sometimes it can't be logged in), but when broadcasting, the student side keeps turning in circles and cannot broadcast. Temporary solution: Disable two virtual NICs, disable the physical NIC, and then re-enable the physical NIC.

The above are not convenient for teaching, I generally disable the two virtual network cards, so that there is no problem with the usual broadcast teaching. If you want to use the VMware Workstation virtual machine software, you have the students enable two virtual network cards, which is a little troublesome, but basically solves the problem. After the virtual NIC is enabled, the broadcast is still available, but there is a slight lag and a slightly larger delay.

However, I have a computer room, the environment is Founder E620, I G, 500G, TP Link SG1024, Win10 Enterprise Edition, VMware Workstation Pro was recently installed), installed Polar 2015 Deluxe Edition Build, replaced the files.

After use, the virtual NIC is not disabled without any issues.

This is easy to do, install an electronic classroom with a connected treasure to immediately carry out broadcast teaching, the operation is simple and smooth.

You can consider giving it a try in the e-classroom. We have sister schools that use them in a virtual machine environment.

Some of the reasons why the student machine cannot log in to the teacher's machine may be due to firewall problems, student machine problems, or the network has been blown up. Here's how to fix it:

Check the line, check the IP address, check the firewall. The line is right, the IP is right, and the firewall is not on. It's not a firewall problem;

The student machine is turned on, if you can't log in, restart the teacher's side, if the others are okay, it's generally okay. There is also one, the broadcast channels should be the same, and the student machine can be set up;

Click to remotely turn off the student machine. I also encountered this situation and restarted it several times (in various sequences), only to find that the student machine was not turned off;

The net was blown up, such as the program: open the student terminal, there is a remote message in it, enter V or Z with smart ABC in it, then press the left arrow button and then press Delete, and then press the space bar;

If the Polar Classroom software version is older, it may be that the channel number is different.

There are 3 steps to install the student side in the Polar eClassroom through the teacher's side:

1. If the computer brand is Lenovo or Founder machine, use the network simultaneous interpretation of Lenovo machine, the progress of Founder machine is synchronized, and the software is installed quickly, so install one first, and let other computers synchronize the progress.

2. Share the Polar student software on the teacher's machine and run it on the student's machine, this method requires you to click one by one.

3. If there are other electronic classroom software on the student's machine, use it to send the installation file to the student's end, and use the command to install it automatically.

1. Directly through the relevant directory on the student side of Polar Classroom, select Open Icon.

2. Next, a new window will pop up, and you need to click Next to jump.

3. At this time, if there is no problem, enable the installation of the teacher's machine management machine there.

4. After completing the above operations, set the path according to the actual situation and determine to continue.

5. In this way, you will see the corresponding results, and you can realize the requirements.

2 Next, a new window pops up. Click Next to jump.

3. If there is no problem at this time, you can enable the installation of the teacher machine management machine.

4 After completing the above operations, set the path according to the actual situation and confirm to continue.

5 In this way, you can see the corresponding results and fulfill the requirements.

Method 1: If your computer is a Lenovo machine or a Founder machine, use the network of the Lenovo machine to interpret simultaneously, the progress of the Founder machine is synchronized, the installation of the software is very fast, the installation of a computer room is a cup of tea, install one first, let other computers synchronize the progress on it.

Method 2: Share the Polar Node student software on the teacher's machine, and run it on the student's machine, this method requires you to click one by one.

Method 3: If your student has other e-classroom software on the machine, use it to send the installation file to the student, and use the command to install it automatically.

It is certainly not possible to go directly through the teacher's machine. Unless you have other control software or maintenance channels.

2 Next, a new window pops up. Click Next to jump.

3. If there is no problem at this time, you can enable the installation of the teacher machine management machine.

4 After completing the above operations, set the path according to the actual situation and confirm to continue.

5 In this way, you can see the corresponding results and fulfill the requirements.

Reasons and solutions for the inability of the electronic polar teacher machine in the computer room to control the student machine:

1. The second way for the student computer to get rid of control: disconnect from the network;

Solution: Using Group Policy, click Start - Run - Enter and press Enter to enter the Group Policy window. Set "Enable the ability to disable LAN connection" as disabled, note that only this setting is invalid, and you have to set the following "Enable Windows 2000 network connection settings for administrators" to enable.

Set the "Disable access to LAN connection" property to Enabled. No reboot is required to take effect.

2. The third way for the student machine to get rid of control: unplug the network cable. Once the network cable is unplugged, the connection between the student machine and the teacher machine is interrupted, and of course, it is out of the monitoring of the teacher machine.

However, the solution is simple. Simply set the automatic screen lock function on the teacher's machine in advance, so that once the student unplugs the network cable, the system will automatically lock.

3. The first way for students to get rid of control: use the bug of intelligent ABC.

Solution: Delete the smart ABC and replace it with another pinyin input method.

It's very simple, and the possibilities are as follows:

1. The versions do not match.

2. The channel number is wrong (the channel number of the teacher's machine and the student's machine must be the same) 3. The connection password is incorrect (if the connection password between the student and the teacher's side is set, the connection password must be the same).

4. The IP of the teacher's machine is wrong (there are two situations: 1) It is not in the same network segment; 2. The student specifies the IP of the teacher's machine, that is, the IP is bound).

There is no link between the student computer and the teacher's computer.

The student machine needs to run the student client;

The teacher machine and the student machine should be in the same network segment;

When the teacher machine starts, it defaults to channel 1;

The firewall on the student's side is turned off.

1. Polar Electronic Classroom:

It does not have the disadvantages of large investment in hardware version of the teaching network, difficult installation and maintenance, ghosting and water ripples in image transmission, and limited line transmission distance;

At the same time, it overcomes the shortcomings of other similar software versions of the teaching network, such as low broadcast efficiency, large voice delay, complex operation, poor stability and compatibility.

2. New Functions:

Screencast. Monitor relays.

Class model management.

Screen recording. Remote setup.

Remote commands. Group management.

Take a quiz in class. System logs.

1. The student and teacher must be installed on different computers.

2. The student's terminal is not turned on and logged in.

3. Check whether the firewall of the student computer blocks the student's program.

Check whether the IP address of the teacher's machine and the IP address of the student's machine are in the same network segment. If it is not within a network segment, set it again and try again.

Having the student restart the computer, and then the teacher restarting the software, should solve the problem.