WiFi roaming causes disconnection

[Kian Cross]

My device is connected to a university wireless network. There are numerous beacons, and my device regularly roams between them. However, when this happens, I experience a wireless disconnect.

Upon further investigation (see attached log), it appears that this is because the DHCP lease is being refreshed, resulting in a new IP which breaks existing connections.

I think the following bug on the NetworkManager repository describes the same issue:

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1263

I am on Ubuntu 22.04.3 LTS, with NM version 1.36.6-0ubuntu2. This issue is not fixed until later versions of NM, which are not available in the Ubuntu package repositories.

Can this fix be backported? I'm surprised that I haven't seen others reporting this issue, given that I imagine many others are on similar corporate networks.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: network-manager 1.36.6-0ubuntu2
ProcVersionSignature: Ubuntu 5.15.0-83.92-generic 5.15.116
Uname: Linux 5.15.0-83-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: i3
Date: Wed Sep 20 14:03:18 2023
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2019-09-30 (1450 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
IpRoute:
 default via 10.255.255.254 dev wlp0s20f3 proto dhcp metric 600
 10.252.0.0/14 dev wlp0s20f3 proto kernel scope link src 10.253.101.252 metric 600
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: network-manager
UpgradeStatus: Upgraded to jammy on 2023-08-16 (34 days ago)
nmcli-nm:
 RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
 running 1.36.6 connected started full enabled enabled enabled enabled disabled