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Network connection issue usually happens out of expectation, and can cause greatest trouble to user since it rules out any possibility of getting online for help. When the network is having problem, the system may display below error messages:
Unidentified Network No Internet Access
No connections are available
The dependency service or group failed to start.
Cause
Network connection problem is caused by multiple reasons. Most of the cases, it is related with registry errors that caused by virus or malware. When the antivirus software remove these viruses, they sometimes remove the vital files that infected by virus.
Network issue is also possibly caused by protective software that disable the connection due to some safe considerations.
Solution:
1. Turn off protective software
Network issue is possibly caused by protective software that disable the connection due to some safe considerations. Especially when the connection issue is related to outlook or your mail system, it is worthwhile to turn off anti-virus and anti-malware software to have a try.
2. Reset IE
This solution is only to solve network connection error on IE. If you find that other programmes is connecting online well, but IE is not connecting at all, then the reason may be your IE setting. Try to reset IE to solve the issue:
- Click the Internet Explorer Tools menu, or press Alt-T on your keyboard.
- Select Internet Options.
- On the Advanced tab, click Reset.
- Select the “Delete personal settings” checkbox.
- Click Reset.
3. reset TCP/IP
- click Start and then click Run. Copy and paste (or type) the following command in the Open box and then press ENTER:
cmd
- At the command prompt, copy and paste (or type) the following command and then press ENTER:
netsh int ip reset c:\resetlog.txt
Note If you do not want to specify a directory path for the log file, use the following command:
netsh int ip reset resetlog.txt - Reboot the computer.
4. Clean registry errors
Most of the cases, Network issue is related with registry errors that caused by virus or malware. When the antivirus software remove these viruses, they sometimes remove vital system files that infected by virus, causing serious registry errors. To get the network connected again, we will need to fix these registry errors first.
