<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi again,<div class=""><br class=""></div><div class="">Please excuse the continuation of the monologue, but I believe I have found a good hint if not the reason for the issue at hand. I noticed two things:<br class=""></div><div class=""><br class=""></div><div class="">1. When NetworkManager wasn’t running on my device, I couldn’t establish the connection manually.</div><div class="">2. When I talked to the native UART without the USB port connected, I couldn’t establish a connection manually either.</div><div class=""><br class=""></div><div class="">This makes me think that the modem expects some sort of interaction with the network interfaces while connecting with AT^SWWAN. I think this may be the DHCP configuration. Coincidentally, the SARA-U2xx and LARA-U20x required the same thing: <a href="https://gitlab.freedesktop.org/mobile-broadband/ModemManager/merge_requests/50" class="">https://gitlab.freedesktop.org/mobile-broadband/ModemManager/merge_requests/50</a></div><div class=""><br class=""></div><div class="">I have yet to find this behaviour described in the documentation.</div><div class=""><br class=""></div><div class="">Sven</div></body></html>