Why can’t my computer connect to broadband? Analysis of hot topics on the Internet in the past 10 days
Recently, the problem of computers being unable to connect to broadband has become one of the hot topics on the Internet. This article will combine the hot content of the entire network in the past 10 days, analyze the causes of common failures and provide solutions, and also attach structured data for readers' reference.
1. Popular search data on broadband connection issues in the past 10 days

| Ranking | Hot search keywords | Search volume (10,000) | Main discussion platform |
|---|---|---|---|
| 1 | Computer cannot connect to WiFi | 128.5 | Baidu/Zhihu |
| 2 | Broadband error 651 | 95.2 | Tieba/Bilibili |
| 3 | DNS server not responding | 76.8 | Weibo/CSDN |
| 4 | Network card driver failure | 62.3 | Zhihu/Douyin |
| 5 | Router settings issues | 58.6 | Kuaishou/Toutiao |
2. Analysis of common fault causes
According to the hot discussion on the Internet, there are five main problems caused by the computer’s inability to connect to broadband:
| Question type | Proportion | Typical performance |
|---|---|---|
| Physical connection failure | 32% | The network cable is loose/the interface is damaged |
| Account password is wrong | 25% | Repeatedly prompting verification failure |
| IP address conflict | 18% | Shows "No Internet access" |
| Driver exception | 15% | Device manager yellow exclamation mark |
| Carrier service issues | 10% | A large number of users are disconnected at the same time |
3. Step-by-step solution
Step One: Check the Physical Connection
1. Make sure both ends of the network cable are plugged in tightly (wired connection)
2. Check the router indicator status
3. Try changing the network cable to test
Step Two: Network Diagnosis
1. Type "Network Troubleshooter" in the Windows search bar
2. Follow the prompts to complete automatic diagnosis
3. Record the error code (such as 651/711, etc.)
Step Three: Key Settings Check
| Setting items | Correct value reference | Check method |
|---|---|---|
| IP acquisition method | Get automatically | Network Properties-IPv4 Settings |
| DNS server | 8.8.8.8/114.114.114.114 | cmd enter ipconfig/all |
| proxy settings | closed state | Internet Options - Connection |
4. Advanced processing methods
1.Reset network configuration:Run cmd as administrator and enter:
netsh winsock reset
netsh int ip reset
ipconfig /flushdns
2.Update network driver:
- Right-click Start Menu → Device Manager
- Expand "Network Adapters"
- Right click on the network card → Update driver
3.Contact operator:Call the customer service hotline to check whether there is any payment arrears or line maintenance
5. Suggestions on preventive measures
According to popular discussions on networking technology forums, the following precautions are recommended:
| measures | Execution frequency | Effect evaluation |
|---|---|---|
| Restart your router regularly | 1 time a week | Reduce cache buildup |
| Back up network configuration | 1 time per month | Quick recovery settings |
| Update system patches | Automatic updates | Fix security holes |
| Record repair phone number | When first installed | Reduce downtime |
Summary:The problem of computers being unable to connect to broadband involves many factors such as hardware, software, and settings. Through systematic troubleshooting and correct handling, most problems can be solved. If you still can't solve the problem after trying the above methods, it is recommended to contact professional technicians for diagnosis.
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