Suddenly my faithful Tixati (and yes i have contributed financially)  has let me down

No downloads.

The port status shows as 'Unconfirmed' for while. Then shifts to 'Listening/OK'

DHT shows itself to be 'Running'

Windows firewall shows Tixati as permitted

The home screen shows the following  

UPNP mapping TCP port 49257 on gateway xxx.168.1.xxx > error searching: Timed out searching for commands (5017
[20:05:07]  mapping TCP port 49257 on gateway xxx.168.1.xxx will be retried every 5 minutes

Does anybody have an idea on how to get things downloading again?

This suddenly happened. Everything as fine till this morning