[Openvpn-users] how to troubleshoot mtu settings

[J W. <jw....@gm...>]

Is there a method to torubleshoot mtu settings or is it just trial and
error by lowering the mtu?
Does the client mtu setting take priority over the server mtu settings?
I am trying to browse video and websites through the VPN but it is
very slow and stutters a lot:
Wed Aug 15 11:09:37 2012 WARNING: 'link-mtu' is used inconsistently,
local='link-mtu 1542', remote='link-mtu 1574'
Wed Aug 15 11:09:37 2012 WARNING: 'tun-mtu' is used inconsistently,
local='tun-mtu 1500', remote='tun-mtu 1532'