<div dir="ltr"><div>Hello there.</div><div><br></div><div>I have this behavior in my raspberry PI where a modem shows connected, but I still can't connect to the internet:</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-wrap"><div><span style="color:rgb(212,212,212)"> </span><span style="color:rgb(206,145,120)">--------------------------------</span></div><div><span style="color:rgb(212,212,212)"> </span><span style="color:rgb(86,156,214)">General | path</span><span style="color:rgb(212,212,212)">: </span><span style="color:rgb(206,145,120)">/org/freedesktop/ModemManager1/Modem/4</span></div><div><span style="color:rgb(212,212,212)"> </span><span style="color:rgb(197,134,192)">|</span><span style="color:rgb(244,71,71)"> device id: ab1573a4186ee4930c3dbe7ee14e2dddcd10b4c2</span></div><div><span style="color:rgb(206,145,120)"> --------------------------------</span></div><div><span style="color:rgb(206,145,120)"> Hardware | manufacturer: huawei</span></div><div><span style="color:rgb(206,145,120)"> | model: E3276</span></div><div><span style="color:rgb(206,145,120)"> | firmware revision: 21.260.05.01.150</span></div><div><span style="color:rgb(206,145,120)"> | supported: gsm-umts</span></div><div><span style="color:rgb(206,145,120)"> | current: gsm-umts</span></div><div><span style="color:rgb(206,145,120)"> | equipment id: 866519011156587</span></div><div><span style="color:rgb(206,145,120)"> --------------------------------</span></div><div><span style="color:rgb(206,145,120)"> System | device: /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2.2</span></div><div><span style="color:rgb(206,145,120)"> | drivers: huawei_cdc_ncm, option</span></div><div><span style="color:rgb(206,145,120)"> | plugin: huawei</span></div><div><span style="color:rgb(206,145,120)"> | primary port: cdc-wdm0</span></div><div><span style="color:rgb(206,145,120)"> | ports: cdc-wdm0 (at), ttyUSB0 (at), ttyUSB1 (at), wwan0 (net)</span></div><div><span style="color:rgb(206,145,120)"> --------------------------------</span></div><div><span style="color:rgb(206,145,120)"> Numbers | own: +xxxx</span></div><div><span style="color:rgb(206,145,120)"> --------------------------------</span></div><div><span style="color:rgb(206,145,120)"> Status | unlock retries: sim-pin (3), sim-puk (10), sim-pin2 (3), sim-puk2 (10)</span></div><div><span style="color:rgb(206,145,120)"> | state: connected</span></div><div><span style="color:rgb(206,145,120)"> | power state: on</span></div><div><span style="color:rgb(206,145,120)"> | access tech: umts</span></div><div><span style="color:rgb(206,145,120)"> | signal quality: 41% (recent)</span></div><div><span style="color:rgb(206,145,120)"> --------------------------------</span></div><div><span style="color:rgb(206,145,120)"> Modes | supported: allowed: 2g; preferred: none</span></div><div><span style="color:rgb(206,145,120)"> | allowed: 3g; preferred: none</span></div><div><span style="color:rgb(206,145,120)"> | allowed: 4g; preferred: none</span></div><div><span style="color:rgb(206,145,120)"> | allowed: 2g, 3g, 4g; preferred: none</span></div><div><span style="color:rgb(206,145,120)"> | current: allowed: 2g, 3g, 4g; preferred: none</span></div><div><span style="color:rgb(206,145,120)"> --------------------------------</span></div><div><span style="color:rgb(206,145,120)"> IP | supported: ipv4, ipv6, ipv4v6</span></div><div><span style="color:rgb(206,145,120)"> --------------------------------</span></div><div><span style="color:rgb(206,145,120)"> 3GPP | imei: 866519011156587</span></div><div><span style="color:rgb(206,145,120)"> | operator id: 72416</span></div><div><span style="color:rgb(206,145,120)"> | operator name: Oi</span></div><div><span style="color:rgb(206,145,120)"> | registration: roaming</span></div><div><span style="color:rgb(206,145,120)"> --------------------------------</span></div><div><span style="color:rgb(206,145,120)"> 3GPP EPS | ue mode of operation: csps-2</span></div><div><span style="color:rgb(206,145,120)"> --------------------------------</span></div><div><span style="color:rgb(206,145,120)"> SIM | primary sim path: /org/freedesktop/ModemManager1/SIM/4</span></div><div><span style="color:rgb(206,145,120)"> --------------------------------</span></div><div><span style="color:rgb(206,145,120)"> Bearer | paths: /org/freedesktop/ModemManager1/Bearer/5</span></div><br><br></div></div><div><br></div><div>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'.</div><div><br></div><div>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:</div><div><br></div><div><span style="font-family:arial narrow,sans-serif"><b>$ sudo mmcli -m 4 --set-allowed-modes='4g' --set-preferred-mode='4g'</b><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'</span></div><div><br></div><div><br></div><div>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.</div><div><br></div><div>Any ideas?<br></div></div>