Re: Mobile Broadband - High speed or 1X

[Dan Williams <dcbw redhat com>]

On Sun, 2011-08-21 at 01:50 +0530, elison niven gmail com wrote:
> Hi list,
> 
> I had called my Mobile broadband provider Reliance to file a complaint
> against the speed issues I am having with my internet connection. I am
> having a 3.1 Mbps connection but end up getting about 0.1 Mbps at
> times.

Could be the device, or it could be that a ton of people are in your
sector/tower using data at the same time

> The first question the customer care guys ask is that in what mode is
> your device currently connected - High speed or CDMA 1X?
> Apparently, Folks at Reliance give away their own dialer to connect to
> Internet in Windows and that software shows the current mode of the
> connection.
> 
> So I tell the customer care guy that I am using Linux (Fedora 15,
> Gnome 3) and I do not know what connection mode is being used. So they
> tell me to please check in some other Windows based system. I know it
> is insane but one can't argue with a non-tech customer care guy on
> such issues. They talk to me as if the problem is in my Linux system -
> It is selecting the low speed mode.
> 
> Is there any way to find out which mode is getting selected - 1X or
> High speed? The device in use in Huawei EC1260.

It should be handled by ModemManager and NetworkManager in Fedora 15
already; it appears that MM is not able to find a second port to query
for the current access technology (ie EVDO vs. 1X).  Here are some steps
you can do to help isolate the issue:

in a root terminal:

1) mv /usr/sbin/modem-manager /
2) killall -TERM modem-manager
3) /modem-manager --debug
4) connect, wait 30 seconds or so, and copy the output from the terminal
running modem-manager into a reply to this mail

To get back:
1) Ctrl+C to kill modem-manager
2) mv /modem-manager /usr/sbin/modem-manager

and you should be good.

Dan

> Can I send some AT commands to ttyUSB0 to check? Could you please help
> me with this?
> 
> Also I do not get a signal strength indication in the NetworkManager
> icon. I get four bars but no color. Is this by design?
> 
> Thanks,
> Elison
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