I have a different problem, but still related to networking. Does this update install any kind of firewall? I'm a bit of a noob with N900.. I see there's no iptables on it to list firewall rules.

Can someone check if USB networking works as before the update?
I have this problem:
The device does not respond to pings anymore, neither on the IP associated to the USB interface (192.168.2.15) nor to localhost (127.0.0.1).
What works are pings to the PC (192.168.2.14) from the device.