I'm sorry to re-visit what seems to be a common problem here. I can connect to both my Home and Work WEP protected routers with no problem. So, I don't have a router problem or a hardware problem with the 770. However, when I'm on the road and trying to browse the Web using unsecured networks that the 770 finds, I am able to connect but NEVER able to get onto the Web...EVER! I get the dreaded "Network problem" error. I can see that data is being sent and received so I'm really confused. The 770 has limited usefulness if it cannot connect to networks other than my own.

Does anyone have an answer?

I can't help because I rarely encounter that. Every time I have experienced that problem on the road it's due to security, ie, I don't have the credentials to get into anyone else's network. Have you considered that possibility? Are you sure those networks are not secure? EDIT: nevermind, I assume you're basing that on the icon. That leads me to believe it's a configuration issue. For instance, I received those errors at home when I made changes to my router, such as taking it off mixed mode once. I still get "network problem" at home on occasion and as I said in another thread rebooting the router fixes it every time. So bottom line I suspect these wayward routers you're encountering.

That's why I use GPRS via my phone when I'm wandering... at least until civic wifi is more pervasive.

The new 3.2006.49-2 firmware has WiFi improvements - you should give that firmware a try in case it resolves your issue (although I think the fixes are mainly for reboots that occur under high WiFi load).

If the new firmware is no improvement you should open a bug in the Maemo Bugzilla. I'm pretty sure you're not the first to report problems with open networks and also networks in hotels etc., but I can't find anything relevant in Bugzilla at this time so it would be worth creating an entry.

nspeer, how do you know the data is exchanged when you get the "network problem" error?
What we know for sure is that, when roaming, signal strength plays a vital role in 770/N800 ability to connect to a network.

i live in Toronto, Canada. In downtown, sometimes I can connect to free Wifi network that covers the core downtown and sometimes either I get "network problem" or "local IP link" responses.

EDIT: One more thing, Internet connection using EDGE/GPRS cost an arm and a leg here, and although pretty useful, I can't use it here as often as I like

Not sure if anyone has mentioned this elsewhere but maybe those access points are using MAC address filtering and not necessarily WEP. My experience has been what you described, looks like your connected and there's traffic going back and forth but you can't surf!

Very interesting... I have the exact issue at work, and even for networks that I am a member of "in good standing". I think chiefly, that N800 (in my case) can see the access point, and it appears on the power scale to be "right next door", but -- in the case of the one at work, it is actually quite a ways away, and I think the problem is, the N800 can see it, but it can't see the N800. If I am close enough, connection, no problem.

So, perhaps the crux is, "better receiver than sender" syndrome. This is quite unfortunate, because very often I can see a big list of APs (unlocked), but can't make a connection.

I hope I am wrong in this and the issue lies in software/firmware, but if not, perhaps we just have to physically saddle up to the access point (albiet quietly) to get the errant email, etc.

Thor

I'd add something more. When I go to the park, there's a bank where I can sit with my Toshiba Satellite Windows XP and get fully connected to internet. But at the same place, I may try with my 770 but won't get any result... Does it have something to do with the OS, or is it the hardware?

Maybe the solution was appointed by another user in this thread that said that maybe the IAP couldn't "see" our 770. Maybe a problem of transmission power? If this is the case, does exist any possibility to change the settings for that particular connection and amplify the emitting power of our 770?

In the Advanced section for each connection on the "Other" tab there is an option to choose 10mW or 100mW for the WLAN Transmission Power - does using 100mW make any difference over 10mW?

This setting is available on both 770 and N800, any firmware.

It doesn't help. It happened at the 100mW (default) option.

I just got my N800 yesterday. Brought it home, turned it on, and immediately started getting the "Network Problem" message. I've got a couple of access points in my home, and after reading the experiences of others, I started looking to the access points as a source of the problem.

After a lot of reconfiguration and rebooting, I still had the problem. I decided that I'd box the whole thing back up and carry it down to CompUSA for a replacement this morning.

On the way, I stopped by a Starbucks for a coffee, and pulled out my N800 to see if it would work with the T-Mobile Hotspot there. Sigh... it worked fine.

So, back in the car to home, have another look at my access point configs.

In looking at my main access point, I noticed that I had configured a gateway address (192.168.1.xxx) outside the subnet of the access point itself (192.168.2.xxx). Just as a random chance, I set the gateway address in the same subnet.

It worked first time! No problems at all.

So, all I can figure is that the TCP stack in the N800 really doesn't want anything out of the ordinary. I find the whole thing a little humorous, as I use Linux on all my other computers in the house and they work fine.

Hope this helps someone. I realize that going to the management in a hotel and requesting they reconfigure their access points is unlikely to happen, but for those of you who are having the "Network Problem" issue at home, maybe this will help.

I'm glad to finally be a member of the N800 community. Now to start slamming in those 4Gb flash cards!!