Why Is My Domain Name or IP Address Inaccessible?

Symptoms

If Access Progress/Status for a website you have added to WAF is Inaccessible, the connection between WAF and the website domain name or IP address fails to be established.

Troubleshooting and Solutions for Dedicated WAF

Refer to Figure 1 and Table 1 to fix connection failures.

Figure 1 Troubleshooting for dedicated mode
Table 1 Solutions for dedicated mode

Possible Cause

Solution

Cause 1: Access Status for Domain Name/IP Address not updated

In the Access Status column for the website, click to update the status.

Cause 2: Website access traffic not enough for WAF to consider the website accessible

NOTICE:

After you connect a website to WAF, the website is considered accessible only when WAF detects at least 20 requests to the website within 5 minutes.
  1. Access the protected website many times within 1 minute.
  2. In the Access Status column for the website, click to update the status.

Cause 3: Incorrect domain name or IP address settings

Check domain name or IP address settings.

If there are incorrect settings for the domain name or IP address, remove this domain name or IP address from WAF and add it to WAF again.

Cause 4: No load balancer configured for the dedicated WAF instance or no EIP bound to the load balancer configured for the dedicated WAF instance
  1. Configure a load balancer for dedicated WAF instances by referring to Configuring a Load Balancer.
  2. Binding an EIP to a Load Balancer.

Cause 5: Incorrect load balancer configured or incorrect EIP bound to the load balancer

Troubleshooting and Solutions for ELB Access Mode

Refer to Figure 2 and Table 2 to fix connection failures.

Figure 2 Troubleshooting for ELB Access Mode
Table 2 Troubleshooting for website connection failure in WAF ELB access mode

Possible Cause

Solution

Cause 1: Access Status for Domain Name/IP Address not updated

In the Access Status column for the website, click to update the status.

Cause 2: Website access traffic not enough for WAF to consider the website accessible

NOTICE:

After you connect a website to WAF, the website is considered accessible only when WAF detects at least 20 requests to the website within 5 minutes.
  1. Access the protected website for many times within 1 minute.
  2. In the Access Status column for the website, click to update the status.

Cause 3: Incorrect domain name or IP address settings

Check whether the domain name or IP address settings are correct.

If there are incorrect settings, remove the domain name or IP address from WAF and add it to WAF again.
Parent topic: Troubleshooting Website Connection Exceptions