<div dir="ltr"><div>I tried running `sudo dhclient wwan0`, it seems it got one of the modems to work, but I have two modems and `wwan1` remains with the same problem and `sudo dhclient wwan1` didn't seem to work on it.<br></div><div><br></div><div><div style="color:rgb(212,212,212);background-color:rgb(30,30,30);font-family:"Droid Sans Mono","monospace",monospace,"Droid Sans Fallback";font-weight:normal;font-size:14px;line-height:19px;white-space:pre"><div><span style="color:rgb(212,212,212)">1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000</span></div><div><span style="color:rgb(212,212,212)"> link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00</span></div><div><span style="color:rgb(212,212,212)"> inet <a href="http://127.0.0.1/8">127.0.0.1/8</a> scope host lo</span></div><div><span style="color:rgb(212,212,212)"> valid_lft forever preferred_lft forever</span></div><div><span style="color:rgb(212,212,212)">2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000</span></div><div><span style="color:rgb(212,212,212)"> link/ether b8:27:eb:87:22:8e brd ff:ff:ff:ff:ff:ff</span></div><div><span style="color:rgb(212,212,212)">3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000</span></div><div><span style="color:rgb(212,212,212)"> link/ether b8:27:eb:d2:77:db brd ff:ff:ff:ff:ff:ff</span></div><div><span style="color:rgb(212,212,212)"> inet <a href="http://192.168.0.16/24">192.168.0.16/24</a> brd 192.168.0.255 scope global dynamic noprefixroute wlan0</span></div><div><span style="color:rgb(212,212,212)"> valid_lft 85555sec preferred_lft 85555sec</span></div><div><span style="color:rgb(212,212,212)"> inet6 2804:14c:7582:46bf::1007/128 scope global dynamic noprefixroute </span></div><div><span style="color:rgb(212,212,212)"> valid_lft 85557sec preferred_lft 85557sec</span></div><div><span style="color:rgb(212,212,212)"> inet6 2804:14c:7582:46bf:cfbe:7945:f701:da92/64 scope global dynamic noprefixroute </span></div><div><span style="color:rgb(212,212,212)"> valid_lft 86372sec preferred_lft 71972sec</span></div><div><span style="color:rgb(212,212,212)"> inet6 fe80::5139:cd08:a2a9:9a4e/64 scope link noprefixroute </span></div><div><span style="color:rgb(212,212,212)"> valid_lft forever preferred_lft forever</span></div><div><span style="color:rgb(212,212,212)">4: wwan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000</span></div><div><span style="color:rgb(212,212,212)"> link/ether 0c:5b:8f:27:9a:64 brd ff:ff:ff:ff:ff:ff</span></div><div><span style="color:rgb(212,212,212)"> inet <a href="http://100.70.243.89/30">100.70.243.89/30</a> brd 100.70.243.91 scope global noprefixroute wwan0</span></div><div><span style="color:rgb(212,212,212)"> valid_lft forever preferred_lft forever</span></div><div><span style="color:rgb(212,212,212)">6: wwan1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000</span></div><div><span style="color:rgb(212,212,212)"> link/ether 0c:5b:8f:27:9a:64 brd ff:ff:ff:ff:ff:ff</span></div><div><span style="color:rgb(212,212,212)"> inet <a href="http://100.71.207.216/28">100.71.207.216/28</a> brd 100.71.207.223 scope global dynamic wwan1</span></div><div><span style="color:rgb(212,212,212)"> valid_lft 518326sec preferred_lft 518326sec</span></div><br><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Em sáb., 2 de out. de 2021 às 11:36, Yegor Yefremov <<a href="mailto:yegorslists@googlemail.com">yegorslists@googlemail.com</a>> escreveu:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi Lucas,<br> <br> On Sat, Oct 2, 2021 at 4:26 PM Lucas Pelegrino <<a href="mailto:lucas.wxp@gmail.com" target="_blank">lucas.wxp@gmail.com</a>> wrote:<br> ><br> > Hello there.<br> ><br> > I have this behavior in my raspberry PI where a modem shows connected, but I still can't connect to the internet:<br> > --------------------------------<br> > General | path: /org/freedesktop/ModemManager1/Modem/4<br> > | device id: ab1573a4186ee4930c3dbe7ee14e2dddcd10b4c2<br> > --------------------------------<br> > Hardware | manufacturer: huawei<br> > | model: E3276<br> > | firmware revision: 21.260.05.01.150<br> > | supported: gsm-umts<br> > | current: gsm-umts<br> > | equipment id: 866519011156587<br> > --------------------------------<br> > System | device: /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2.2<br> > | drivers: huawei_cdc_ncm, option<br> > | plugin: huawei<br> > | primary port: cdc-wdm0<br> > | ports: cdc-wdm0 (at), ttyUSB0 (at), ttyUSB1 (at), wwan0 (net)<br> > --------------------------------<br> > Numbers | own: +xxxx<br> > --------------------------------<br> > Status | unlock retries: sim-pin (3), sim-puk (10), sim-pin2 (3), sim-puk2 (10)<br> > | state: connected<br> > | power state: on<br> > | access tech: umts<br> > | signal quality: 41% (recent)<br> > --------------------------------<br> > Modes | supported: allowed: 2g; preferred: none<br> > | allowed: 3g; preferred: none<br> > | allowed: 4g; preferred: none<br> > | allowed: 2g, 3g, 4g; preferred: none<br> > | current: allowed: 2g, 3g, 4g; preferred: none<br> > --------------------------------<br> > IP | supported: ipv4, ipv6, ipv4v6<br> > --------------------------------<br> > 3GPP | imei: 866519011156587<br> > | operator id: 72416<br> > | operator name: Oi<br> > | registration: roaming<br> > --------------------------------<br> > 3GPP EPS | ue mode of operation: csps-2<br> > --------------------------------<br> > SIM | primary sim path: /org/freedesktop/ModemManager1/SIM/4<br> > --------------------------------<br> > Bearer | paths: /org/freedesktop/ModemManager1/Bearer/5<br> ><br> ><br> ><br> > Weird thing is that on my Ubuntu desktop this modem works! The only difference I noticed is that in my Ubuntu field 'access tech' is 'lte', while above (on the pi) like you can see it's 'umts'.<br> ><br> > I figured the problem might be related to the 'access tech' field above, so I tried forcing setting mode for '4g' but didn't work:<br> ><br> > $ sudo mmcli -m 4 --set-allowed-modes='4g' --set-preferred-mode='4g'<br> > error: couldn't set current modes: 'GDBus.Error:org.freedesktop.ModemManager1.Error.Core.Unsupported: The given combination of allowed and preferred modes is not supported'<br> ><br> ><br> > The only difference between my raspberry pi and my desktop machine is that the pi is under a more recent version of ModemManager 1.16 vs 1.12 from my desktop Ubuntu.<br> ><br> > Any ideas?<br> <br> Could you share your IP configuration i.e. please post the output of<br> the "ip addr" command. Looks like you haven't run dhcpclient or alike<br> on your wwan0 interface.<br> <br> Best regards,<br> Yegor<br> </blockquote></div>