Public bug reported:

After updating from kernel "linux-image-5.3.0-1007-raspi2" to "linux-
image-5.3.0-1012-raspi2" I no longer can establish SSH connection to
Raspberry over Wifi.

When it is on wired connection, SSH works and initial screen shows that
both adapters (eth0 and wlan0) are connected and have their IPs.
"ifconfig" confirms that both adapters are up and have their IPs.
Establishing SSH session with both IPs is successful.

When I disconnect the network cable, SSH is no longer possible
(connection time out). In the same time the router is showing that the
Raspberry is connected to the Wifi network.

Plugging back the wire does not make the SSH possible. A restart of the
Raspberry is required with plugged in network cable in order to
establish SSH again.

The system is Raspberry Pi 4, 4GB with Ubuntu server X64 image - clean
install.

Reference info for what is done so far:
https://answers.launchpad.net/ubuntu/+question/685941

Output of "ubuntu-bug linux":

ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: arm64
Date: Mon Nov 18 16:46:39 2019
Dependencies:
 adduser 3.118ubuntu1
 apt 1.9.4
 apt-utils 1.9.4
 binutils 2.33-2ubuntu1
 binutils-aarch64-linux-gnu 2.33-2ubuntu1
 binutils-common 2.33-2ubuntu1
 busybox-initramfs 1:1.30.1-4ubuntu4
 ca-certificates 20190110
 coreutils 8.30-3ubuntu2
 cpio 2.12+dfsg-9ubuntu0.1
 debconf 1.5.73
 debconf-i18n 1.5.73
 device-tree-compiler 1.4.7-3ubuntu2
 devio 1.2-1.2
 dpkg 1.19.7ubuntu2
 e2fsprogs 1.45.3-4ubuntu2
 fdisk 2.34-0.1ubuntu2
 flash-kernel 3.98ubuntu5.1
 gcc-9-base 9.2.1-9ubuntu2
 gpgv 2.2.12-1ubuntu3
 initramfs-tools 0.133ubuntu10
 initramfs-tools-bin 0.133ubuntu10
 initramfs-tools-core 0.133ubuntu10
 klibc-utils 2.0.6-1ubuntu3
 kmod 26-1ubuntu1
 libacl1 2.2.53-4
 libapt-pkg5.90 1.9.4
 libattr1 1:2.4.48-4
 libaudit-common 1:2.8.5-2ubuntu1
 libaudit1 1:2.8.5-2ubuntu1
 libbinutils 2.33-2ubuntu1
 libblkid1 2.34-0.1ubuntu2
 libbz2-1.0 1.0.6-9.2
 libc6 2.30-0ubuntu2
 libcap-ng0 0.7.9-2
 libcom-err2 1.45.3-4ubuntu2
 libdb5.3 5.3.28+dfsg1-0.6ubuntu1
 libext2fs2 1.45.3-4ubuntu2
 libfdisk1 2.34-0.1ubuntu2
 libffi6 3.2.1-9
 libgcc1 1:9.2.1-9ubuntu2
 libgcrypt20 1.8.4-5ubuntu2
 libgmp10 2:6.1.2+dfsg-4
 libgnutls30 3.6.9-5ubuntu1
 libgpg-error0 1.36-7
 libgpm2 1.20.7-5
 libhogweed4 3.4.1-1
 libidn2-0 2.2.0-2
 libklibc 2.0.6-1ubuntu3
 libkmod2 26-1ubuntu1
 liblocale-gettext-perl 1.07-3build3
 liblz4-1 1.9.1-1
 liblzma5 5.2.4-1
 liblzo2-2 2.10-0.1
 libmount1 2.34-0.1ubuntu2
 libncursesw6 6.1+20190803-1ubuntu1
 libnettle6 3.4.1-1
 libp11-kit0 0.23.17-2
 libpam-modules 1.3.1-5ubuntu1
 libpam-modules-bin 1.3.1-5ubuntu1
 libpam-runtime 1.3.1-5ubuntu1
 libpam0g 1.3.1-5ubuntu1
 libpcre2-8-0 10.32-5
 libseccomp2 2.4.1-0ubuntu0.19.10.3
 libselinux1 2.9-2
 libsemanage-common 2.9-3
 libsemanage1 2.9-3
 libsepol1 2.9-2
 libsmartcols1 2.34-0.1ubuntu2
 libss2 1.45.3-4ubuntu2
 libssl1.1 1.1.1c-1ubuntu4
 libstdc++6 9.2.1-9ubuntu2
 libsystemd0 242-7ubuntu3
 libtasn1-6 4.14-3
 libtext-charwidth-perl 0.04-9
 libtext-iconv-perl 1.7-6
 libtext-wrapi18n-perl 0.06-9
 libtinfo6 6.1+20190803-1ubuntu1
 libudev1 242-7ubuntu3
 libunistring2 0.9.10-2
 libuuid1 2.34-0.1ubuntu2
 libzstd1 1.4.3+dfsg-1
 linux-base 4.5ubuntu2
 linux-modules-5.3.0-1012-raspi2 5.3.0-1012.14
 login 1:4.5-1.1ubuntu4
 logsave 1.45.3-4ubuntu2
 lsb-base 11.0.1ubuntu1
 lz4 1.9.1-1
 mtd-utils 1:2.0.1-1ubuntu3
 openssl 1.1.1c-1ubuntu4
 passwd 1:4.5-1.1ubuntu4
 perl-base 5.28.1-6build1
 sensible-utils 0.0.12
 tar 1.30+dfsg-6
 u-boot-tools 2019.07+dfsg-1ubuntu3
 ubuntu-keyring 2018.09.18.1
 ucf 3.0038+nmu1
 udev 242-7ubuntu3
 util-linux 2.34-0.1ubuntu2
 uuid-runtime 2.34-0.1ubuntu2
 zlib1g 1:1.2.11.dfsg-1ubuntu3
DistroRelease: Ubuntu 19.10
Package: linux-image-5.3.0-1012-raspi2 5.3.0-1012.14
PackageArchitecture: arm64
ProcCpuinfoMinimal:
 processor      : 3
 BogoMIPS       : 108.00
 Features       : fp asimd evtstrm crc32 cpuid
 CPU implementer        : 0x41
 CPU architecture: 8
 CPU variant    : 0x0
 CPU part       : 0xd08
 CPU revision   : 3
 
 Hardware       : BCM2835
 Revision       : c03111
 Serial         : 10000000352e9f36
 Model          : Raspberry Pi 4 Model B Rev 1.1
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 5.3.0-1012.14-raspi2 5.3.7
SourcePackage: linux-raspi2
Tags:  eoan uec-images
Uname: Linux 5.3.0-1012-raspi2 aarch64
UpgradeStatus: No upgrade log present (probably fresh install)
_MarkForUpload: True

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Incomplete


** Tags: eoan

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1853030

Title:
  No connection through SSH over WIfi after kernel update

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  After updating from kernel "linux-image-5.3.0-1007-raspi2" to "linux-
  image-5.3.0-1012-raspi2" I no longer can establish SSH connection to
  Raspberry over Wifi.

  When it is on wired connection, SSH works and initial screen shows
  that both adapters (eth0 and wlan0) are connected and have their IPs.
  "ifconfig" confirms that both adapters are up and have their IPs.
  Establishing SSH session with both IPs is successful.

  When I disconnect the network cable, SSH is no longer possible
  (connection time out). In the same time the router is showing that the
  Raspberry is connected to the Wifi network.

  Plugging back the wire does not make the SSH possible. A restart of
  the Raspberry is required with plugged in network cable in order to
  establish SSH again.

  The system is Raspberry Pi 4, 4GB with Ubuntu server X64 image - clean
  install.

  Reference info for what is done so far:
  https://answers.launchpad.net/ubuntu/+question/685941

  Output of "ubuntu-bug linux":

  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu8.2
  Architecture: arm64
  Date: Mon Nov 18 16:46:39 2019
  Dependencies:
   adduser 3.118ubuntu1
   apt 1.9.4
   apt-utils 1.9.4
   binutils 2.33-2ubuntu1
   binutils-aarch64-linux-gnu 2.33-2ubuntu1
   binutils-common 2.33-2ubuntu1
   busybox-initramfs 1:1.30.1-4ubuntu4
   ca-certificates 20190110
   coreutils 8.30-3ubuntu2
   cpio 2.12+dfsg-9ubuntu0.1
   debconf 1.5.73
   debconf-i18n 1.5.73
   device-tree-compiler 1.4.7-3ubuntu2
   devio 1.2-1.2
   dpkg 1.19.7ubuntu2
   e2fsprogs 1.45.3-4ubuntu2
   fdisk 2.34-0.1ubuntu2
   flash-kernel 3.98ubuntu5.1
   gcc-9-base 9.2.1-9ubuntu2
   gpgv 2.2.12-1ubuntu3
   initramfs-tools 0.133ubuntu10
   initramfs-tools-bin 0.133ubuntu10
   initramfs-tools-core 0.133ubuntu10
   klibc-utils 2.0.6-1ubuntu3
   kmod 26-1ubuntu1
   libacl1 2.2.53-4
   libapt-pkg5.90 1.9.4
   libattr1 1:2.4.48-4
   libaudit-common 1:2.8.5-2ubuntu1
   libaudit1 1:2.8.5-2ubuntu1
   libbinutils 2.33-2ubuntu1
   libblkid1 2.34-0.1ubuntu2
   libbz2-1.0 1.0.6-9.2
   libc6 2.30-0ubuntu2
   libcap-ng0 0.7.9-2
   libcom-err2 1.45.3-4ubuntu2
   libdb5.3 5.3.28+dfsg1-0.6ubuntu1
   libext2fs2 1.45.3-4ubuntu2
   libfdisk1 2.34-0.1ubuntu2
   libffi6 3.2.1-9
   libgcc1 1:9.2.1-9ubuntu2
   libgcrypt20 1.8.4-5ubuntu2
   libgmp10 2:6.1.2+dfsg-4
   libgnutls30 3.6.9-5ubuntu1
   libgpg-error0 1.36-7
   libgpm2 1.20.7-5
   libhogweed4 3.4.1-1
   libidn2-0 2.2.0-2
   libklibc 2.0.6-1ubuntu3
   libkmod2 26-1ubuntu1
   liblocale-gettext-perl 1.07-3build3
   liblz4-1 1.9.1-1
   liblzma5 5.2.4-1
   liblzo2-2 2.10-0.1
   libmount1 2.34-0.1ubuntu2
   libncursesw6 6.1+20190803-1ubuntu1
   libnettle6 3.4.1-1
   libp11-kit0 0.23.17-2
   libpam-modules 1.3.1-5ubuntu1
   libpam-modules-bin 1.3.1-5ubuntu1
   libpam-runtime 1.3.1-5ubuntu1
   libpam0g 1.3.1-5ubuntu1
   libpcre2-8-0 10.32-5
   libseccomp2 2.4.1-0ubuntu0.19.10.3
   libselinux1 2.9-2
   libsemanage-common 2.9-3
   libsemanage1 2.9-3
   libsepol1 2.9-2
   libsmartcols1 2.34-0.1ubuntu2
   libss2 1.45.3-4ubuntu2
   libssl1.1 1.1.1c-1ubuntu4
   libstdc++6 9.2.1-9ubuntu2
   libsystemd0 242-7ubuntu3
   libtasn1-6 4.14-3
   libtext-charwidth-perl 0.04-9
   libtext-iconv-perl 1.7-6
   libtext-wrapi18n-perl 0.06-9
   libtinfo6 6.1+20190803-1ubuntu1
   libudev1 242-7ubuntu3
   libunistring2 0.9.10-2
   libuuid1 2.34-0.1ubuntu2
   libzstd1 1.4.3+dfsg-1
   linux-base 4.5ubuntu2
   linux-modules-5.3.0-1012-raspi2 5.3.0-1012.14
   login 1:4.5-1.1ubuntu4
   logsave 1.45.3-4ubuntu2
   lsb-base 11.0.1ubuntu1
   lz4 1.9.1-1
   mtd-utils 1:2.0.1-1ubuntu3
   openssl 1.1.1c-1ubuntu4
   passwd 1:4.5-1.1ubuntu4
   perl-base 5.28.1-6build1
   sensible-utils 0.0.12
   tar 1.30+dfsg-6
   u-boot-tools 2019.07+dfsg-1ubuntu3
   ubuntu-keyring 2018.09.18.1
   ucf 3.0038+nmu1
   udev 242-7ubuntu3
   util-linux 2.34-0.1ubuntu2
   uuid-runtime 2.34-0.1ubuntu2
   zlib1g 1:1.2.11.dfsg-1ubuntu3
  DistroRelease: Ubuntu 19.10
  Package: linux-image-5.3.0-1012-raspi2 5.3.0-1012.14
  PackageArchitecture: arm64
  ProcCpuinfoMinimal:
   processor    : 3
   BogoMIPS     : 108.00
   Features     : fp asimd evtstrm crc32 cpuid
   CPU implementer      : 0x41
   CPU architecture: 8
   CPU variant  : 0x0
   CPU part     : 0xd08
   CPU revision : 3
   
   Hardware     : BCM2835
   Revision     : c03111
   Serial               : 10000000352e9f36
   Model                : Raspberry Pi 4 Model B Rev 1.1
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 5.3.0-1012.14-raspi2 5.3.7
  SourcePackage: linux-raspi2
  Tags:  eoan uec-images
  Uname: Linux 5.3.0-1012-raspi2 aarch64
  UpgradeStatus: No upgrade log present (probably fresh install)
  _MarkForUpload: True

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