CableLabs urges makers to prioritize WPA3 compatibility fix for Wi-Fi 7 devices

CableLabs has raised concerns that Wi-Fi 7 access points attempting to support older client devices may inadvertently create new compatibility issues. While WPA3 has been mandatory on the 6 GHz band since the Wi-Fi Alliance’s certification program began in early 2024, many legacy devices still rely on WPA2 or older standards. Some of these devices fail to ignore unfamiliar security options, preventing them from connecting to a Wi-Fi 7 router and prompting increased customer-service inquiries.

To address this, CableLabs is pushing hardware makers to adopt WPA3-Personal Compatibility Mode, which uses Robust Security Network Override (RSNO) elements to advertise WPA2-Personal to legacy clients while allowing WPA3-capable devices to negotiate stronger protection. However, this solution requires client hardware to support RSNO, a capability that many existing devices lack. CableLabs therefore calls on chipset vendors and makers of inexpensive or smart-home products to prioritize testing and support for this mode, aiming to smooth the transition as Wi-Fi 7’s market share grows.