Hi,
I have a single board computer set up with a fresh dual boot of Win 10 and Ubuntu 20.04.3. In this setup I have a Telit LE910C4-NF modem/gps module connected through USB.
I have configured the APN in both OSes. I get a strong cellular connection in Win 10, but when booting in Ubuntu it does not work. The gps serial ports are available at ttyUSB1 & ttyUSB2, and I can send AT commands, but the network manager GUI indicates "Wireless Broadband Disabled". Mobile Broadband Settings page indicates that Mobile Broadband is Unavailable. The worst part is that I have another computer right next to it with the same version of Ubuntu and when I plug the modem into that one, it works perfectly! I'm pulling my hair out at this point. What am I missing?
Code:> mmcli -L /org/freedesktop/ModemManager1/Modem/0 [Telit] LE910C4-NFCode:> nmcli dev status DEVICE TYPE STATUS CONNECTION cdc-wdm0 gsm unavailable --Code:> nmcli con show NAME UUID TYPE MyConnection cb9bc2dc-0f7e-41c0-aadf-febaa547c028 gsmCode:> nmcli con up MyConnection Error: Connection activation failed: No suitable device found for this connection (device cdc-wdm0 not available because device is not available).Code:> nmcli dev connect cdc-wdm0 Error: Failed to add/activate new connection: Connection 'cdc-wdm0' is not available on device cdc-wdm0 because device is not available.Code:>nmcli con show 'MyConnection' connection.id: MyConnection connection.uuid: cb9bc2dc-0f7e-41c0-aadf-febaa547c028 connection.stable-id: -- connection.type: gsm connection.interface-name: cdc-wdm0 connection.autoconnect: yes connection.autoconnect-priority: 0 connection.autoconnect-retries: -1 (default) connection.multi-connect: 0 (default) connection.auth-retries: -1 connection.timestamp: 0 connection.read-only: no connection.permissions: -- connection.zone: -- connection.master: -- connection.slave-type: -- connection.autoconnect-slaves: -1 (default) connection.secondaries: -- connection.gateway-ping-timeout: 0 connection.metered: unknown connection.lldp: default connection.mdns: -1 (default) connection.llmnr: -1 (default) connection.wait-device-timeout: -1 ipv4.method: auto ipv4.dns: -- ipv4.dns-search: -- ipv4.dns-options: -- ipv4.dns-priority: 0 ipv4.addresses: -- ipv4.gateway: -- ipv4.routes: -- ipv4.route-metric: -1 ipv4.route-table: 0 (unspec) ipv4.routing-rules: -- ipv4.ignore-auto-routes: no ipv4.ignore-auto-dns: no ipv4.dhcp-client-id: -- ipv4.dhcp-iaid: -- ipv4.dhcp-timeout: 0 (default) ipv4.dhcp-send-hostname: yes ipv4.dhcp-hostname: -- ipv4.dhcp-fqdn: -- ipv4.dhcp-hostname-flags: 0x0 (none) ipv4.never-default: no ipv4.may-fail: yes ipv4.dad-timeout: -1 (default) ipv6.method: auto ipv6.dns: -- ipv6.dns-search: -- ipv6.dns-options: -- ipv6.dns-priority: 0 ipv6.addresses: -- ipv6.gateway: -- ipv6.routes: -- ipv6.route-metric: -1 ipv6.route-table: 0 (unspec) ipv6.routing-rules: -- ipv6.ignore-auto-routes: no ipv6.ignore-auto-dns: no ipv6.never-default: no ipv6.may-fail: yes ipv6.ip6-privacy: 0 (disabled) ipv6.addr-gen-mode: stable-privacy ipv6.ra-timeout: 0 (default) ipv6.dhcp-duid: -- ipv6.dhcp-iaid: -- ipv6.dhcp-timeout: 0 (default) ipv6.dhcp-send-hostname: yes ipv6.dhcp-hostname: -- ipv6.dhcp-hostname-flags: 0x0 (none) ipv6.token: -- ppp.noauth: yes ppp.refuse-eap: no ppp.refuse-pap: no ppp.refuse-chap: no ppp.refuse-mschap: no ppp.refuse-mschapv2: no ppp.nobsdcomp: no ppp.nodeflate: no ppp.no-vj-comp: no ppp.require-mppe: no ppp.require-mppe-128: no ppp.mppe-stateful: no ppp.crtscts: no ppp.baud: 0 ppp.mru: 0 ppp.mtu: auto ppp.lcp-echo-failure: 0 ppp.lcp-echo-interval: 0 gsm.auto-config: no gsm.number: <hidden> gsm.username: <hidden> gsm.password: <hidden> gsm.password-flags: 0 (none) gsm.apn: <hidden> gsm.network-id: -- gsm.pin: <hidden> gsm.pin-flags: 0 (none) gsm.home-only: no gsm.device-id: -- gsm.sim-id: -- gsm.sim-operator-id: -- gsm.mtu: auto proxy.method: none proxy.browser-only: no proxy.pac-url: -- proxy.pac-script: --
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Originally Posted by jeremy31
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