With the release of our MR 30.X firmware, we will remove support for WEP. If you need to continue using WEP, please remain on MR 29.X firmware. However, we recommend planning to transition your WEP clients to a more secure encryption method as soon as possible.
WEP was replaced by WPA back in 2003. For 20 years, we have carried support, for this insecure protocol, due to the persistence of legacy devices that don’t support more secure encryption protocols. With security becoming a more significant concern, especially with WPA3 becoming more ubiquitous, we can no longer support a mechanism that offers little protection to our customers' networks.
While the IEEE and Wi-Fi Alliance have not yet deprecated WEP as they did WPA/TKIP, they have done no interoperability testing for WEP for many years and stated that there should be no ability to configure WEP. We recommend that you look through your or your customer's networks to determine if you still need to run this insecure protocol.