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Help Center/ Web Application Firewall/ Troubleshooting/ Troubleshooting Certificate and Cipher Suite Issues/ What Do I Do If the Protocol Is Not Supported and the Client and Server Do Not Support Common SSL Protocol Versions or Cipher Suites?

What Do I Do If the Protocol Is Not Supported and the Client and Server Do Not Support Common SSL Protocol Versions or Cipher Suites?

Updated on 2024-07-12 GMT+08:00

Symptom

After a domain name is connected to WAF, the website cannot be accessed. A message is displayed, indicating that the protocol is not supported. The client and server do not support common SSL protocol versions or cipher suites.

Solution

Select the default cipher suite for Cipher Suite in the TLS Configuration dialog box. For details, see Configuring PCI DSS/3DS Certification Check and TLS Version.

Figure 1 TLS Configuration
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