Have recently purchased a new 3300+ and installed this week using three ADSL WAN's, but every day 3-4 times the Vigor requires power recyle due to lost of connectivity, has anyone else experienced this. Have discouted all except config or faulty 3300+

I would need to know a lot more about your setup before I would conclude faulty hardware, most likely it isn't

make sure you have latest firmware, that your setup is correct (balancing? how?) what modems you use, provider, speeds, protocols, static ip's etc etc etc

there is so much you can do wrong and not even notice that it's hard to help with this little information.

(connection detection using arp or ping, no-reply count ?)

let me know more and i may be able to help you