3 mobile broadband eratic web browsing

[leeparnell]

Can Anyone Help???????
I’ve got a Huawei E156G Modem with 3 PAYG.
I’ve had no end of connection problems, which seemed to resolve themselves until about a month ago.
I can connect to the network HSDPA with a good signal. When I try to surf the web it works for about 5-10mins then I can’t connect to any web sites, whether they are new or previous ones I’ve just been on. The network is still connected and a strong signal.
I’m using windows firewall which I disabled to no avail. I have windows XP and am using AVG.
I’ve had the same problem with Google Chrome, Firefox and IE 7and 8.
I’ve had new modems all to no avail. When I try to diagnose connection problems on IE7 it says it cannot find the wireless connection.
PLEASE HELP

[mgmcc]

As you will presumably be connecting with the "Three" utility, check that in Internet Explorer "Tools > Internet Options > Connections" you have selected "Never dial a connection".

You can actually connect by double clicking the "3" connection's icon in the Network Connections folder, which I found to connect more quickly than using the "3" utility.

[leeparnell]

Seems to be a lot more stable, had only one instance of "cannot find webpage" so far. Thanks for that.

[NikoBold]

I found that the E220 dongle could not recover from a short term signal loss, about 1 or 2 seconds, which happens several times an hour where I am, and just hangs. The turquoise LED still glows but nothing happens. Rebooting the dongle would restore the connection, until the next time. I don't know whether that applies to the more recent dongles too, but your experience sounds familiar.
I now use a Netgear MBM621 modem, which does recover from signal outages automatically, and it has transformed the '3' service into something quite usable for me. It does require a 12V 1A supply, so it isn't as portable as a dongle

Niko