Network adapter cannot be enabled
Cause analysis:
Network adapter cannot be enabled is usually due to driver abnormality. You can try to update the network card driver again, or delete the related registry entries to update it again.
Easy steps:
Update the NIC driver
Solution:
Program 1: Update the NIC driver
1. Open the 360 Software Manager and enter Driver Life into the search bar to search, click to download, and then click on the install button when you are done, and then finish installing according to the prompts.
2. Run Driver Manager to select the latest driver, find the NIC driver, and click Start Update on the right side.
3. After the update is complete, Driver Manager will prompt you to reboot your system. Click Reboot Now to do so.
Option 2:
1. Click Start-Run, type regedit and hit Enter.
2. Locate: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}, and then locate the item related to the NIC Hardware ID and delete it. and delete it. After deleting item 0007, reboot and execute Option 1.
Supplement: How to view the hardware ID
My computer (Win7 computer) right-click - Management - Device Manager, then find the network adapter (here to network adapter as an example, the other devices), double-click on the network adapter, then click on the network adapter, then double-click on the network adapter, then double-click on the network adapter. The operation method is similar), double click on the network adapter, click on the details, click on the drop-down small triangle to select the hardware ID can be.
Problem description:
Network adapter not enabled
Cause analysis:
The network adapter is not enabled, usually due to abnormal driver. You can try to update the network card driver again, or delete the related registry entries to update it again.
Easy steps:
Update the NIC driver
Solution:
Program 1: Update the NIC driver
4. Open the 360 Software Manager and enter Driver Life into the search bar to search, click to download, and then click on the Install button when you are done to complete the installation as prompted.
5. Run Driver Manager to select the latest driver, find the NIC driver, and click Start Update on the right side.
6. After the update is complete, Driver Manager will prompt you to reboot your system. Click Reboot Now to do so.
Option 2:
3. Click Start - type regedit in the search bar and hit Enter.
4. Locate: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}, and then locate the item related to the hardware ID of the NIC and delete it. and delete it. After deleting item 0007, reboot and execute option one.
Additional: How to view the hardware ID
My computer (computer under Win7) right click - Management - Device Manager, then find the network adapter (here to the network adapter as an example, other devices), double click on the network adapter, and then click on the network adapter. The operation method is similar), double-click on the network adapter, click on the details, click on the drop-down small triangle to select the hardware ID can be.
Adapter
Adapter is the Chinese translation of English Adapter/adaptor. An adapter is an interface converter, which can be a stand-alone hardware interface device that allows hardware or electronic interfaces to connect to other hardware or electronic interfaces, or it can be an information interface. For example:Power adapter, tripod base adapter component, USB and serial port adapter device, and so on.
Adapter (Adapters) is an interface converter, it can be a separate hardware interface device, allows hardware or electronic interface with other hardware or electronic interface, can also be information interface. Examples include: power adapters, tripod base adapter components, adapter devices for USB and serial ports, and so on.
In computers, adapters are usually built into cards that can be inserted into slots on the motherboard (external ones are also available)... The adapter information in the card is exchanged between the processor and the devices supported by the adapter.
Power adapter is a small portable electronic devices and electronic appliances power supply conversion equipment, generally by the shell, power transformer and rectifier circuitry, according to its output type can be divided into AC output type and DC output type; according to the connection can be divided into wall-plug type and desktop type. Mobile PCs do not have batteries, power adapters are especially important for them.
Most mobile PCs have power adapters that automatically detect 100 to 240V AC (50/60Hz). Basically all mobile PCs have the power supply external, connected to the mainframe with a cable, which reduces the size and weight of the mainframe, and only a very few models have the power supply built into the mainframe. There is a nameplate on the power adapter that indicates the power, input and output voltages, and current draw, with special attention to the input voltage range, which is known as the "travel power adapter".
When MBeans are registered with the MBean server, a protocol is needed to interact with those MBeans and retrieve information for requests from the management application. This is enabled through a protocol adapter that converts management application data into standard protocol information.
Protocol adapters supported by the Multi-Protocol Agent include: SNMP, TL1, RMI, CORBA, HTTP, and HTML adapters.
In the actual development process, we often encounter such things, we developed a base class based on the initial requirements, in the development process only to learn the detailed requirements or requirements have changed. And development work in the interface has long been defined, and has been put into coding on a large scale. Changing the definition of the interface at this point will result in a lot of repetitive modifications to the coding, and in turn may result in incomplete modifications leading to semantic or logical errors. Semantic errors can still be found in the compilation phase, but once a logical error occurs, the consequences will be very serious, and even enough to cause the system to crash. This is where the Adapter Pattern design approach comes in.
In computer programming, the adapter pattern (sometimes called wrapper style or wrapping) adapts the interface of a class to what the user expects. An adaptation allows classes that would not normally work together because of incompatible interfaces to work together by wrapping the class's own interface in a pre-existing class.
The adapter pattern is primarily used when a method defined in an interface does not meet a customer's needs, or when the name or method interface of a method defined in an interface conflicts with a customer's needs.
How to use the adapter pattern:
Use a class to inherit from both the interface and the known class, and use the methods and attributes defined in the known class to realize the definition of the interface (mainly by overloading the interface methods). Use this class as a base class for other business classes, i.e. the class adapts to both the interface and the known class. If the known class changes, just modify the class adapter to meet the implementation of the interface.
Notes
I. What does the nominal voltage and current of a power adapter (hereinafter referred to as power supply) mean? First of all, the nominal voltage of the general power supply refers to the voltage of the open-circuit output, that is, the voltage when there is no load connected to the outside and no current output, so it can also be understood that this voltage is the upper limit of the power supply output voltage.
For the power supply internal use of active voltage regulator components, even if the utility voltage fluctuations, its output is a constant value, like the market in general small transformers, such as Walkman with the power supply, if the utility fluctuations, the output of the power supply will not fluctuate.
Generally speaking, the real no-load voltage of the ordinary power adapter is not necessarily the same as the nominal voltage, because the characteristics of the electronic components can not be exactly the same, so there is a certain degree of error, the smaller the error, the higher the consistency of the electronic components required, the higher the cost of production, so the price is also more expensive.
Also, regarding the nominal current value, no matter any power supply has a certain internal resistance, so when the power supply output current, it will generate a voltage drop internally, resulting in two things, one is to generate heat, so the power supply will be hot, and the other is to lead to a reduction in the output voltage, which is equivalent to internal consumption.
Two, are the same nominal voltage power supply, the output current is different, can be used in the same notebook?
The power supply voltage is the same, the output current is different, can be used in the same notebook. The basic principle is that a power supply with a large nominal current can replace a power supply with a small nominal current. I guess some people will think so, think big nominal current power supply will burn this book, because the current is big. In fact, how much current in the case of the same voltage depends on the load, huh,, think of junior high school physics to know.
When the book is running at high load, the current is higher, and when the book is in standby, the current is lower, and the power supply with large nominal current has enough current margin. On the contrary, some people use 56w power supply instead of 72w with no problem, the reason is that usually the design of the power adapter to leave a certain margin, the load power are less than the power supply power, so this instead of the general use of the power supply is feasible, but the remaining power supply power margin will be very little, once your notebook connected to a lot of peripherals, such as two usb hard disk, and then the cpu running at full speed, and then have A dock, the top to a CD-ROM drive to read the disk at full speed, plus charging the battery at the same time, it is estimated that it is dangerous, to always feel with your hand if your power supply has been able to boil eggs. So it's best not to use a low current power supply instead of a high current one.
Three, exactly the same machine, other people's power supply warm, my always very hot, why?
Don't doubt that your power supply has a problem, first look at what your book is doing, is not like the above said two USB hard disk, CPU running at full speed, hard disk reading and writing madness, CD-ROM drive reading disk at full speed, while charging the battery, playing music loudly, the screen brightness is the largest, the wireless card has been in the detection of signals, etc., make good use of the power management, the task of reasonable adjustments to the book's state of work is very important. The first step in the process is to make sure that you're using the right power source for the right task.
Four, the nominal voltage of the power supply is much higher than the battery voltage of my laptop.
First of all, it is important to realize that the power supply is not the same as the battery.
Battery power, the output of the battery is pure DC, clean, the battery voltage is neither possible nor necessary to design a very high, lithium battery chemistry determines that the output voltage of a cell can only be around 3.6V, so many batteries are used in a three-stage series connection, 10.8V has become a very popular battery voltage. Some batteries have a slightly larger nominal value than an integer multiple of 3.6V, such as 3.7V or 11.2V, etc. This is actually to protect the battery.
Power supply, the situation is a little more complicated, the first need to join the voltage to further regulate the filter to ensure that the power supply performance is not very good in the case of stable operation, the regulated voltage is divided into two parts, all the way to the work of the power supply to this book, the other way to the battery charging, the power supply to this part of the same as the battery power supply, and the battery charging the battery charging the part of the battery need to be added to the power supply through the battery charging control circuit before you can add to the battery. Charge control circuit can be added to the battery cell, the control circuit can be very complex, so the power supply voltage must be greater than the battery cell voltage in order to have sufficient capacity to supply to the various units of the charge control circuit. The final voltage actually added to the cells will never be the nominal voltage of your power supply. Don't worry.
Use
Switching power supply products are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, electric power equipment, instruments, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, liquid crystal displays, LED lamps and lanterns, communication equipment, audio-visual products, security, computer chassis, digital products and Instruments and other fields.