problems with mobile connection

I have huawei 1550 mobile internet modem,and first time i plugged it in connection manager recognized “mobile connection” .After filling necessary fileds(pass,user,apn,…),connection works but not all time.Usually i must click twice to connect,and second click must be in wright time, otherwise cannot connect.And when connected ,pop-up window with
“you are connected to…” shows, but no web page can be opened,like there is no connection?
I disabled “connect automatically”,and allowed connection to all users
Same thing with kppp,modem connects,but cannot open pages
I put my self in modem,wheel and dialout group
I use 11.2 with gnome.
Can this be solved?

I got the same problem with ZTE modem, T-Mobile network. I thought that my modem is not stabil, but I think that the problem is with network manager, indifferent witch you use.
I made changes in usb_modeswitch.conf to have a flip-flop, 'cause ZTE is a ZeroCD without these changes.

I find the answer: this is because the modem can’t find the name provider of the network you use. If you could write in in network manager manualy, you can connect to internet. But I don’t know how to write it manual.:frowning:

Thanks for answers!
I did wrote in network manager,I filled in providers data (user,pass and APN) is that it?

At user and pass I didn’t write anything, it works not if I write something there. APN is internet.

Mine is working,but guess will work like now, no hope for better