Hi ftdsb,
Have you tried any of the fixes here (click on link)?
If LW 5 Will Not Connect
First & easiest thing to try is disabling TLS, DHT & ultrapeer capabilities. Disabling TLS has been solving some problems recently

If that doesn't fix things, update your Java & after that delete LW's preferences folder. Just remember LW
must be properly closed first
What's the model of your Belkin? Do you have port forwarding set up or is UPnP enabled?
If you don't like the current version of LW then you could also roll back to an older version. What version were you using before the update?