No Wireless Connection I have the same problem as Junaid Naseer. My laptop and desktop are running Linux, Ubuntu 8.04 cannot connect to the internet wirelessly. Network Manager used to detect the wireless networks around me (six) and now neither computer recognizes them or my own router. I know the Wireless system is working as I have friends who have come into my home with their WIndows machines and the wireless transmissions work fine. I have reinstalled the operating system twice and Network Manager a number of times on both computers in an attempt to get the system to work, but no luck. I tried a number of fixes over the months and finally gave up. It is a nuisance when I travel as my laptop is almost useless when I attempt to use the internet. I have to locate a cybercafe or library to pay bills or check my email and usually must use their computers. However, I have no problem connecting to the internet via an Ethernet cable on both computers. If I am lucky, the library or cybercafe has an Ethernet connection I can plug into my laptop.
Any suggestions? Francis Walker To: [email protected] Subject: no wireless networks detected Message-ID: <1302972839.17768.2.camel@ linux-junaid> Content-Type: text/plain; charset="utf-8" Hi, My networkmanager is not automatically detecting the dozen or so wireless networks surrounding me, even though it used to do so earlier, until i had to reninstall the system from scratch. All drivers etc are installed and all versions of the OS and network manager are the same. Earlier it used to work. Now it doesn't. On Sat, Apr 16, 2011 at 10:30 PM, <[email protected]>wrote: > Send networkmanager-list mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://mail.gnome.org/mailman/listinfo/networkmanager-list > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of networkmanager-list digest..." > > > Today's Topics: > > 1. Modem-/NetworkManager support for modems not using PPP > (Marius Kotsbak) > 2. no wireless networks detected (Junaid Naseer) > 3. Re: no wireless networks detected (Timothy Murphy) > 4. How nm-applet and gnome-bluetooth interact to create a > bluetooth connection? (Lamarque Vieira Souza) > 5. Q: nm-gsm-device.c (ran shalit) > 6. Re: Q: nm-gsm-device.c (Lamarque Vieira Souza) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 16 Apr 2011 14:57:49 +0200 > From: Marius Kotsbak <[email protected]> > To: [email protected] > Cc: [email protected] > Subject: Modem-/NetworkManager support for modems not using PPP > Message-ID: <[email protected]> > Content-Type: text/plain; charset=ISO-8859-1 > > Hi! > > There seems to be now quite a bit of modems appearing now that does not > support the old method of using PPP protocol on the same tty device as > the AT commands are sent, or it is not recommended for higher HSPA+ and > LTE modems because of performance limitations of the PPP/tty layer. > Those devices typically accept AT commands at one interface and use > another interface for the network traffic (including first a DHCP query). > > One example is the Samsung GT-B3730 I'm currently developing drivers for: > > https://github.com/mkotsbak/Samsung-GT-B3730-linux-driver > > It seems to be the same case for LG VL600 4G (LTE): > > http://ubuntuforums.org/showpost.php?p=10589647&postcount=17 > > https://github.com/balrog-kun/LG-VL600-utils > > The Ericsson Mobile Broadband Modules (I have an F5521gw based modem) > seems to offer both the old ACM ports and support USB WCM / CDC NCM / > CDC Ethernet protocols for higher performance: > > > http://www.thinkwiki.org/wiki/Ericsson_F3507g_Mobile_Broadband_Module#Connecting_to_the_net_via_CDC_Ethernet_interface > > http://sourceforge.net/apps/mediawiki/mbm/index.php?title=MBM#Prerequisites > > http://cateee.net/lkddb/web-lkddb/USB_NET_CDC_NCM.html > > I wonder if support for this has been implemented or thought about in > Modem-/NetworkManager. We probably need a flag for a modem manager > module to tell that it does not use PPP and require to get IP address > using DHCP instead. > > Else those devices benefit from the code in modem manager (and should be > classified as such to the user as well), like the PIN unlocking, signal > strength (typically found on the same device as dialling happened, since > network traffic flow on a separate interface) etc. The configuration > tab for PPP could be hidden for those devices. For devices offering > multiple ways to connect, the modem manager module should probably find > the best performing according to the available kernel modules and use > that method. > > -- > Marius Kotsbak > > > > > ------------------------------ > > Message: 2 > Date: Sat, 16 Apr 2011 18:53:59 +0200 > From: Junaid Naseer <[email protected]> > To: [email protected] > Subject: no wireless networks detected > Message-ID: <1302972839.17768.2.camel@linux-junaid> > Content-Type: text/plain; charset="utf-8" > > Hi, > > My networkmanager is not automatically detecting the dozen or so > wireless networks surrounding me, even though it used to do so earlier, > until i had to reninstall the system from scratch. All drivers etc are > installed and all versions of the OS and network manager are the same. > Earlier it used to work. Now it doesn't. > > > Best Regards, > Junaid Naseer > > MS Digital Communications > Technische Fakult?t, CAU Kiel, > Schleswig-Holstein, Germany > > [email protected] > [email protected] > [email protected] > > +49 ( 0176 ) 564 560 71 > +49 ( 0431 ) 219 08 79 > ************************************** > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://mail.gnome.org/archives/networkmanager-list/attachments/20110416/4cd6c971/attachment.html > > > > ------------------------------ > > Message: 3 > Date: Sat, 16 Apr 2011 23:30:55 +0100 > From: Timothy Murphy <[email protected]> > To: [email protected] > Subject: Re: no wireless networks detected > Message-ID: <[email protected]> > Content-Type: text/plain; charset="ISO-8859-1" > > Junaid Naseer wrote: > > > My networkmanager is not automatically detecting the dozen or so > > wireless networks surrounding me, even though it used to do so earlier, > > until i had to reninstall the system from scratch. All drivers etc are > > installed and all versions of the OS and network manager are the same. > > Earlier it used to work. Now it doesn't. > > I've found NM often says "No wireless networks detected" > even when it is actually connected to one. > > -- > Timothy Murphy > e-mail: gayleard /at/ eircom.net > tel: +353-86-2336090, +353-1-2842366 > s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland > > > > ------------------------------ > > Message: 4 > Date: Sat, 16 Apr 2011 20:15:47 -0300 > From: Lamarque Vieira Souza <[email protected]> > To: [email protected] > Subject: How nm-applet and gnome-bluetooth interact to create a > bluetooth connection? > Message-ID: <[email protected]> > Content-Type: text/plain; charset="us-ascii" > > Hi all, > > Alex Fiestas and me are trying to implement Bluetooth DUN support > for > KDE. We spent some time trying to figure out the steps nm-applet and gnome- > bluetooth do to implement it but without much success. Can someone help us? > > During my tests I hit this part of NM code in src/nm-manager.c: > > /* If it was a Bluetooth modem and no bluetooth device claimed it, > ignore > * it. The rfcomm port (and thus the modem) gets created > automatically > * by the Bluetooth code during the connection process. > */ > if (driver && !strcmp (driver, "bluetooth")) { > nm_log_info (LOGD_MB, "ignoring modem '%s' (no associated > Bluetooth > device)", ip_iface); > return; > } > > Commenting the "return" allows me to use my cellphone as bluetooth > serial > modem (after creating /dev/rfcomm0 using BlueZ), but of course I guess that > code is there for a reason. I still do not understand how gnome-bluetooth > (or > nm-applet) creates the rfcomm port. I know that can be done using BlueZ's > DBus > interface by calling the org.bluez.Serial.Connect method on a bluetooth > device. But since NM is explicitly ignoring the rfcomm port, how are NM's > bluetooth connections supposed to work? > > -- > Lamarque V. Souza > http://www.geographicguide.com/brazil.htm > Linux User #57137 - http://counter.li.org/ > http://planetkde.org/pt-br > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://mail.gnome.org/archives/networkmanager-list/attachments/20110416/9137655e/attachment.html > > > > ------------------------------ > > Message: 5 > Date: Sat, 16 Apr 2011 22:22:29 -0700 (PDT) > From: ran shalit <[email protected]> > To: [email protected] > Subject: Q: nm-gsm-device.c > Message-ID: <[email protected]> > Content-Type: text/plain; charset=us-ascii > > > Hello, > > I am a newbie student of the NetworkManager, and I try to undetsrand the > way > the application treats with modem & wifi devices (more ineterseted in the > low level parts of the NetworkManager application: the "commands" to the > devices). > I saw that in the older released version such as 0.7.2 there was a file > /src/nm-gsm-device.c which contained some of the AT-COMMAND used for > initialization of modems, but in the updated version there is no such > file(as far as I can find), and I dont see anywhere else where AT-Command > are used. Does anyone knows how these commands are used then in the updated > version ? > > Many thanks, > Ran > > -- > View this message in context: > http://old.nabble.com/Q%3A-nm-gsm-device.c-tp31416196p31416196.html > Sent from the Gnome - NetworkManager mailing list archive at Nabble.com. > > > > ------------------------------ > > Message: 6 > Date: Sun, 17 Apr 2011 02:30:34 -0300 > From: Lamarque Vieira Souza <[email protected]> > To: [email protected] > Subject: Re: Q: nm-gsm-device.c > Message-ID: <[email protected]> > Content-Type: text/plain; charset="iso-8859-1" > > Em Sunday 17 April 2011, ran shalit escreveu: > > Hello, > > > > I am a newbie student of the NetworkManager, and I try to undetsrand the > > way the application treats with modem & wifi devices (more ineterseted in > > the low level parts of the NetworkManager application: the "commands" to > > the devices). > > I saw that in the older released version such as 0.7.2 there was a file > > /src/nm-gsm-device.c which contained some of the AT-COMMAND used for > > initialization of modems, but in the updated version there is no such > > file(as far as I can find), and I dont see anywhere else where AT-Command > > are used. Does anyone knows how these commands are used then in the > updated > > version ? > > NetworkManager >= 0.8 uses ModemManager for low level configuration > such > as AT commands. > > -- > Lamarque V. Souza > http://www.geographicguide.com/brazil.htm > Linux User #57137 - http://counter.li.org/ > http://planetkde.org/pt-br > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://mail.gnome.org/archives/networkmanager-list/attachments/20110417/c9a0edf7/attachment.html > > > > ------------------------------ > > _______________________________________________ > networkmanager-list mailing list > [email protected] > http://mail.gnome.org/mailman/listinfo/networkmanager-list > > > End of networkmanager-list Digest, Vol 79, Issue 27 > *************************************************** >
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