Uninstalling Norton Windows XP Lost IP can't access the Internet

After the Norton anti-virus software installed on Windows XP system was recently uninstalled, I found that the laptop suddenly could not access the Internet. Open the Network Neighborhood Properties window and check the properties of the local connection. I saw the TCP/IP parameter setting interface. The IP address turned "mutation" into "0.0.0.0". This is strange. I originally set the IP address of the notebook to be dynamically acquired. Now I have not made any changes to the network parameters. How can the IP address suddenly become "0.0.0.0"?

When searching for the "0.0.0.0" address on the Internet, it is found that the address does not represent any computer or network. Obviously, the IP address of the local computer becomes "0.0.0.0", indicating that the local network interface has not been Open correctly, which means that the laptop does not get a real and effective IP address from the DHCP server, so the laptop will naturally fail to access the Internet.

So what is the cause of the local computer's IP address becomes "0.0.0.0"? Considering that the IP address was changed before and after the mutation, I have not made any changes to the network parameters, and before the Norton anti-virus software is uninstalled, the Internet is still normal. It seems that the mutation of the IP address must be caused by Norton anti-virus software. In order to further verify the author's guess, the author opened the log information of the Windows XP system and wanted to find some answers.

Sure enough, the log file clearly indicates that the system has a 7300 error and the DHCP service cannot be started normally. In order to clarify the cause of the 7300 error, the author went online to check the information in this area; after several efforts, I finally realized that the 7300 error was mainly caused by the DHCP client service not being able to initialize properly. Once the DHCP service could not be started correctly, then Windows XP system workstations naturally cannot obtain a valid IP address dynamically from the DHCP server. This is obviously because the local computer IP address suddenly becomes "0.0.0.0".

According to the prompt of the log file, the author further found that the DHCP client service could not be initialized normally, mainly because the SYMTDI service that is dependent on the DHCP service could not be started normally. The SYMTDI service is automatically monitored by Norton AntiVirus during its operation. Once Norton AntiVirus is forcibly uninstalled, the SYMTDI service will be implicated and will not start properly. In order for the DHCP service to start normally, the dependency of the service with the SYMTDI service can be removed.