I was one of the users who originally reported an issue with the IPS function and WiFi with the EAP -- after the new version was applied, and IPS function re-enabled in the policy, tested again, and same behavior; boot laptop, wifi works for a couple of minutes, then all useful traffic stops (still connected, just no DNS, etc.). Disconnecting/reconnecting the wifi has no effect; going into Central, disabling IPS in the applicable policy, and rebooting the laptop corrects the issue. I have a SDU that has data surrounding the timeframe of the test if anyone at Sophos is interested. Endpoint client shows the following current versions:
Core Agent: 2.5.5 Beta
Endpoint Advanced: 10.8.6.215
Sophos Intercept X: 2.0.16 BETA
