Well, this may be no help at all, but my iPronot worked flawlessly for 9 months. Then, about 6 weeks ago it would lose the network connection as soon as the screen powered off and could only be got back by a reboot etc, as you elude to above.

After much frustration I found the cause to be my wirless network which was set to 802.11b AND 802.11g. Now, it had always been like this but as soon as I set it to 802.11b ONLY the iPronto has behaved flawlessly again. I have tested and retested this and it is definitely the problem. I think Philips have messed something up in the latest firmware to cause this as nothing has changed on my wi-fi network

Just try switching your WAP to 802.11b ONLY as a test and see what happens.

Cheers

Neil