In my case, I had no problems whatsoever until some time two days ago.
The 3G
symbol remains on the display but what I observe is it flashing the up-
arrow
but the down arrow never lights up, implying that it's still sending
but
nothing is being received. When I ping from adb, the down arrow does
light up
but pinging known IPs is the only thing that works.

I still think it might be the network but they think it's ok. They
might not
have too many people who hold open a 3G connection for as long as the
ADP1
does. I might get a PAYG SIM and test an alternative carrier to see if
they
work better.

On Jun 12, 7:43 am, Mike Dent <[email protected]> wrote:
> I see similar problems to yours. See my post below which I sent in
> reply to a message yesterday:-
>
> --
> I have noticed a similar problem. In fact it has occurred twice so far
> this week.
> Whereby the phone totally looses its data connection, I've left it for
> 20 mins or more, in the end
> I fixed it by turning it on/off again.
> I've probably had this occur 20 times since I got the phone 2+ months ago.
> This is with 1.5.
> --
>
> 2009/6/12 CameronH <[email protected]>:
>
>
>
> > Well I've spoken to the carrier and they think there are no 3G
> > problems,
> > I have also performed a factory reset and am already out of ideas :)
>
> > On Jun 11, 2:47 pm, CameronH <[email protected]> wrote:
> >> Hi all,
>
> >> I've got an ADP1 in the UK, and for the past day or so it seems to
> >> stop receiving data after between 5 minutes and 2 hours of being
> >> connected to the network. The browser and all internet apps (twitroid,
> >> google talk, etc.) will all stop working. Flipping it off and on, or
> >> turning airport mode off and on will get it working again for a while.
> >> This may well be a network issue but I want to eliminate any problems
> >> my end before I complain to them, as they're probably just going to
> >> say they don't support the phone and not help. Wifi works properly,
> >> the issue is only with data (3G and edge).
>
> >> If I adb shell and run ping to a known host, it seems to work, and
> >> pinging different hosts by IP address will get different response
> >> times (160ms - 250ms from servers I know). ping to known host names
> >> will not work and will come up with "unknown host" after about 2
> >> minutes.
>
> >> The browser displays this message when typing in IP addresses of known
> >> hosts with a HTTP server:
> >> "Data connectivity problem
> >> The server failed to communicate. Try again later."
>
> >> If I restart the phone or disable/reenable the radio, it all starts
> >> working again but it will fail some time later.
>
> >> Unfortunately the android seems to lack network tools so I can't
> >> properly figure out what's happening (e.g. dead DNS server, faulty
> >> router, whatever). Is there any way for me to get more of an insight?
> >> dmesg doesn't contain anything I can immediately notice as useful.
> >> Even if this is a network problem, is there anything I can say to them
> >> that might help them find the issue?
>
> >> Also is there any way to change the locale on the ADP1 to Britain/
> >> UK?  :)
>
> >> Thanks,
> >> Cameron
>
>
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