To preface, I am able to use jumbo frames up to 9014Byte on the 4 LAN ports on the WZR-HP-G30?0NH. However, with the professional firmware aka DD-WRT V24-SP2 build 14998 there is an option from within the Basic setup page within the Setup menu to "Assign WAN Port to Switch'. With this enabled, the port will connect to my gigabit LAN, but only at 1514Byte packet frame.
I set the Wan connection to disabled and attempted to manually change the WAN port MTU to 9000 or 9014, but it will not change from the default 1500. Can the WAN port be made to support jumbo frames?
Thank you for your help.