I am using a fiber ftth connection that requires an mtu setting of 1438. I am using the microtic as a ppoe client for the fiber. I have 3 wlan interfaces and an ethernet interface. Locally (when on the same LAN as ether1) all the sights open up real quick both with 2.9 router os and 3.10. But with 3.10 the clients that are associated with wlan1/wlan3/wlan2 have random connection issues to sigts like youtube/micorosoft.com/msn.com. (sits there and times out) Any one experiencing issue with 3.10 and pppoe client? I have not tampered with the mtu sizes fo the bridges or wireless interfaces on either 2.9 or 3.10.