I was running gnome 17.04 with no issues. I clean installed Ubuntu 17.1 and everything is fine except on shutdown / reboot it hangs with the following error. Only way to turn off is to hard power cycle which may be bad for hardware. How can I troubleshoot this?
Wlp6s0: failed to remove key (1, ff:ff:ff:ff:ff:ff) from hardware (-22)
Wlp6s0: failed to remove key (2, ff:ff:ff:ff:ff:ff) from hardware (-22)
3 ways to fix this problem:
First way: If you don't wanna make change to grub or changing the grub create other problems or you don't wanna upgrade the kernel:
alt+F7.Second way: Removing "quiet splash" from the parameters in grub:
gksudo gedit /etc/default/grub
Change:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
To:
GRUB_CMDLINE_LINUX_DEFAULT=""
Then run:
sudo update-grub
reboot
Third way:
I'm having this same issue, I'd be interested to see what the resolution is. I believe disconnecting from the Wireless connection will allow you to shut down gracefully if you haven't found out, but I'm not entirely sure how to resolve it either.
EDIT: Looks like this is resolved in a new kernel version, but I'd be interested to know if a fix exists.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1720930
I was having this issue when closing the lid of my laptop (entering 'suspended' mode). Once I opened the lid, wifi refused to connect and I was getting [ 183.188182] wlp60s0: failed to remove key (1, ff:ff:ff:ff:ff:ff) from hardware (-22) in dmesg. I tried lots of things and nothing worked. The only thing that really worked for me was restarting my router.
I could not fix this issue at all using any solutions given, disabling wifi card options via /etc/modprobe.d/iwlwifi.conf, nothing worked.
What worked for me was changing the MAC address on the actual wifi connection. Somehow something must have been caching that and associating it with some bad wifi / connection state, even after reboot. Maybe it was my router, but it's very weird.
