Symptoms
	Description: "An error occurred while running Firewall. Click Yes to resolve this problem."

	Cause
	AhnLab Online Security has failed to access the skin server. Check the network settings on your computer. AOS must be connected to the skin server in order to work properly.

Solution

1 Click each of the following links and check whether you can access or download from the page: http://ahnlabdownload.nefficient.co.kr/asp/dntest/dntest.html a. If you click any of the links above but do not receive [Successfully connected to the AhnLab Authentication Server], note the address and report it to your network staff. (If you are using a network hub, try changing the settings or removing the device.) b. If you can download properly, go to the Internet Explorer menu Tools-Internet Options-Advanced and select Use HTTP 1.1 through proxy connections, and then try again. If you still cannot get a connection, run AhnReport and send the resulting file to the AhnLab Customer Center. 2 If you are running an Internet security program, exit the program and then try again.