I do not really see in the log snippets where the Wi-Fi does not actually work, or which step of the Wi-Fi connection attempt fails. Perhaps the relevant part is not included.
You write: ---------- Jul 16 19:20:34 serval NetworkManager[617]: <info> [1563330034.2504] device (p2p-dev-wlp62s0): supplicant management interface state: associating -> associated ``` ...snip... ``` Jul 16 19:20:45 serval NetworkManager[617]: <info> [1563330045.2179] supplicant: wpa_supplicant die count reset ---------- Could you also post the part which you have cut away here? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1838836 Title: network-manager needs to be restarted frequently To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1838836/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs