After charging the credit credit, the modem will not connect

According to your description, is the error ** 651? Your modem reports an error and neither found the specified port.

Solution: 1. The remote access notebook file and the current "Network and Dial-up Connection" configuration may be inconsistentIf the communication device is changed, please make sure to reconfigure the "Network and Dial-up Connection". If the error persists, delete and recreate Network and Dial-up Connections

2. If it still doesn't work, then try it, disable the local connection - shut down - check all the plugs of the cat and unplug it again - unplug the cat - unplug it - wait for 2 minutes and then plug it in - turn it on.

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1. First turn on the computer, find the control panel icon on the desktop of the computer and click to enter, click to select the system and security options in the control panel interface to enter, and then select the system options in the system and security options interface, click on the system options, and select the device manager in the pop-up page.

2. Find the network adapter in the device manager list, double-click to enter the network adapter, find the series controller in the adapter and double-click to enter, select disable in the pop-up option box, select Yes option in the dialog box, and click the restart button after the selection is completed.

If it still doesn't work, then click the uninstall button, return to the device controller after the uninstallation is successful, click on the operation option, select Scan to detect hardware changes, and then the computer system will reinstall the driver, after the installation is completed, restart the computer.

Hope it helps, dear.

Answer: Hello, the reasons why the school broadband connection modem report error occurs are: 1. The modem reports an error, which may be the reason why the modem is set up improperly, or there is a missing system file. First of all, press the "Win+i" shortcut key combination on the keyboard at the same time to open the Windows settings, and click Network and Internet in the settings interface; Click the [Dialing] button on the left side, click the broadband link below the dialing on the right, and then click [Advanced Options] to open the advanced settings interface for broadband connections, and move to the [Auto Detection] switch below the auto-configuration options below to turn it on. After the setup is complete, restart the computer once and you can use the broadband connection normally.

FYI. Asked if I tried it, it was still like that, and the 4 lights of the router were on normally.

Hello, if you can't try, it should be caused by data conflicts. You try the cat reboot again. If it still can't solve the problem, it should be an external line problem, and the line contact is poor, and this situation can only report the fault.

The second type: caused by high temperature. If the temperature of the cat or router is too high, exceeding the limit of its temperature tolerance, it will cause it to break automatically, when not in use, turn them off, and then put them in a ventilated place, and you will be fine. FYI.

Asking questions still doesn't work, so what's wrong.

If a broadband fault occurs, you can use the following methods to troubleshoot the fault:

1 Use stand-alone dial-up, if you are using a router, please temporarily disconnect the router for testing;

2 Restart the modem and the computer;

3 Re-create the broadband dial-up connection and try to dial again. How to do it: Start the Program Attachment Communication New Connection Wizard.

If the self-troubleshooting still does not recover, you can log in to the mobile phone business hall Customer Service Broadband Fault Report for feedback, and we will get in touch with you as soon as possible.

Don't say anything, you don't understand it.

You just take a screenshot of the prompt you see.

If error **651 occurs in the broadband, it is recommended that you troubleshoot the problem from the following aspects:

1. Restart the modem and plug in the optical fiber connector.

2. Judge whether the status of the modem indicator is normal, if it is abnormal (the modem lights up red, the PON light flashes, and the indicator light is abnormal), you can call the local 10086 for broadband fault reporting;

3. Remove the router and directly connect to the optical modem to dial-up to connect to the Internet, if the dial-up connection fails, you can further feedback and deal with it through the broadband fault reporting center;

4. Reconfigure the router.

The modem is generally not a software problem, it is a hardware problem, you can check whether your network cable, plugged interface, router is normal, and then.

1 In the Network and Sharing Center - Change Adapter Configuration - Local Connections, first make sure that Local Connections is enabled.

2If there is no local connection, open the device manager, reinstall the network adapter driver, preferably the official website driver, or delete the network card, let Windows install the driver automatically. Then Orange Hill repeats the steps inside Run cmd, and in the command line type netsh winsork reset to reset the Windows network protocol.

IP address: This last digit can be changed at will, the range is 0 255, such as the gateway: note, here is the gateway of your router, here is the default address) network mask mu Wu hail:

Domain name 2: Not specified (in special cases).

Error 797 is displayed for broadband Internet access, which is caused by the fact that the modem power is not turned on or the corresponding protocol is not properly bound after the software is installed, and an incorrect empty connection is established when creating a dial-up connection.

The output is equal to the positive half-wave voltage of the input, so the output is a positive polarity voltage, but when the UI is inverted with UA, that is, when the UA is left positive and right negative saturated BG, the UI is just positive and positive, so the output is a DC voltage of negative polarity. Since the rectifier output is related to the phase of the UI, it is called a phase-sensitive rectifier demodulator. Its output is able to reflect changes in the size and polarity of the input.

1. The broadband connection prompts error **797, which is caused by the following conditions:

Case 1: The ADSL modem power is not turned on.

Scenario 2: There is a problem with the cable between the NIC and the ADSL modem.

Situation 3: The corresponding protocol is not properly bonded after the software is installed.

Scenario 4: When creating a dial-up connection, an incorrect null connection is established.

2. In view of the above situation, the following steps can be used to troubleshoot:

Step 1: Check the power supply and connecting cables.

Step 2: Check the network properties, check whether the Raspppoe-related protocols are correctly installed and bound (related protocols), and check whether the NIC appears. No. or! to set it to enable.

Step 3: Check the properties of the dial-up connection and check whether one is used by the connected device"isdn channel-adapter name(xx)"(the device is an empty device), if it is already in use, cancel it and select the correct PPPoE device instead, or re-establish the dial-up connection.

Delete the original broadband connection and manually create a broadband connection, the operation method is as follows: right-click on the online neighbor Properties Select Create a new connection New Connection Wizard Connect to the Internet Manually set up my connection Connect with a broadband connection that requires a username and password ISP name (feel free to enter it doesn't matter, generally enter a broadband connection) Enter the username and password Add a shortcut to this connection on my desktop Done, you can use the broadband connection to surf the Internet.

The normal situation is: a ** line (broadband signal input) at the telecommunications end, connected to modem (telecommunications distribution), one end of the network cable is connected to modem (output port), and one end is connected to a computer network card; Install dial-up software (for telecommunications) on your computer, enter your account and password, and connect.

The possible reasons are: the ADSL modem power is not turned on; There is a problem with the cable or network cable between the NIC and the ADSL modem; The corresponding protocol is not properly bound after the software is installed; An incorrect empty connection was established while creating a dial-up connection.

It is recommended to check the modem power cable and connection cable, check the network attributes, and check whether the protocols related to PPPoE are correctly installed and bound. Check the properties of the dial-up connection to see if an "isdn channnel - adapter name?" is usedxx" device, which is an empty device, should select the correct PPPoE device to replace it, or recreate the dial-up connection.

That's the problem with your newly built broadband connection, which is incorrectly estimated.

There are several reasons why your phone is connected to wifi but you can't access the internet

1. The wifi itself is a problem, the wifi may not be connected normally, resulting in the inability to access the Internet;

2. Router problems, the router may be overheated or damaged;

3. There may be broadband arrears, resulting in inability to access the Internet;

4. The wifi name contains Chinese, resulting in some mobile phones unable to connect to the Internet;

5. There may be a problem with the mobile phone system, which may cause the connection to wifi but the Internet cannot be accessed.

Suggested workaround:

1. Use other mobile phones or devices to connect to wifi to try whether you can access the Internet and rule out the problem of wifi itself;

2. Restart the router to try, or restore the router to factory settings, and then dial up the Internet again, and according to the settings.

Re-set the wifi, or change the router to a new router and dial-up to connect to the Internet;

3. Contact the broadband customer service to confirm whether there is any abnormality in the broadband account, such as arrears, recharge the broadband, and then dial up the connection test.

Try; 4. If the wifi name contains Chinese, it is recommended to modify it to English or a combination of English and numbers before connecting;

5. If the above reasons are ruled out, it is likely to be a problem with the mobile phone system for a long time, and it is recommended to restore the factory settings or flash the phone to see.

See if you can solve the problem.

Dear users, hello:

There may be several reasons for the phenomenon of being able to connect to wifi but not being able to access the Internet

1. The network parameters of the wireless router are set incorrectly, and the central equipment of the ISP operator cannot be dialed and the Internet cannot be accessed;

2. The broadband line is faulty, and the router cannot dial the central office equipment of the ISP operator, and cannot be connected;

3. The broadband DNS server cannot provide domain name resolution services for some reason, and its external phenomenon is very similar to the inability to access the Internet, which is easy to be confused as a network failure;

4. The broadband is cut off by the ISP operator due to the expiration of the tariff, and you need to go to the business hall to pay for the renewal of the contract;

5. The router is set up with IP address filtering, and the IP address obtained by the mobile phone is in the IP segment that prohibits access to the Internet;

6. The router has enabled timed dialing, and the current time is not within the time period of automatic dialing;

7. The power of the modem is turned off, and the router cannot dial the network;

8. The network cable connecting the modem and the wireless router is faulty, such as being bitten by rats or flattened by furniture or the crystal head is not in good contact, resulting in the router being unable to connect to the network.

1. Determine if it's a problem with the router. Connect this wifi with another mobile phone or computer to see if you can access the Internet. If you can't get online either, then it's a problem with your router. Find the company's network administrator, or other methods to find out the reason.

2. Determine if the wifi password is correct. Sometimes, the phone shows that it is connected to the wifi, but it is not actually connected. Check whether the wifi flag in the status bar is normal.

If the password of the wireless router is changed, there will be an exclamation mark on the wifi logo. There is also a possibility that the wireless router is set up to bind the MAC address, and you need to find the network manager to add your phone to the whitelist.

3. Determine the network settings of your phone. Do not turn on both wifi and 3G and 2G. Sometimes, the software will go through the 3G 2G channel, resulting in the illusion that you can't access the Internet.

4. Identify software problems. Try using a few more internet apps.

Watson Security WiFi Judgment:

1. If it is an enterprise unit, the mobile phone that cannot access the Internet may not be authorized by the network administrator to access the Internet function;

2. If you are a home user, check whether the wifi router blocks some mobile phones from surfing the Internet.

It is recommended to try other wifi so that you can know if it is a problem with the phone or the office network.

Visual identification of MAC address filtering turned on without adding your machine.

wifi connected. There is no internet connection.

1. Check whether the WPS security encryption service is enabled, and cancel if so;

2. Check whether the router has the MAC security policy enabled and whether it is in the whitelist.

4. Check whether the SSID contains Chinese characters, if so, please modify it to full English characters and then try to connect.

The phone is powered off and restarted once.

This is the reason for the phone.