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21.04 Lost GUI for wifi and bluetooth

se flag

I have freshly installed Ubuntu few weeks ago and was using wifi and bluetooth without problems. Today I started the system and I do not see gui for wifi networks and possibility to switch on bluetooth. When I try to restart network manager through sudo service network-manager restartI get this error: Failed to restart network-manager.service: Unit network-manager.service not found.

As I have not changed anything during the weekend I suspect that the culprit could be a failed / corrupted actualization - is that possible? How should I proceed?

EDIT: lspci -v gives following output for the wifi:

04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter
    Subsystem: Lenovo ThinkPad E595
    Physical Slot: 0
    Flags: fast devsel, IRQ 255, IOMMU group 12
    I/O ports at 2000 [disabled] [size=256]
    Memory at d0700000 (64-bit, non-prefetchable) [disabled] [size=64K]
    Capabilities: <access denied>
    Kernel modules: rtw88_8822be

sudo rfkill list

0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

EDIT2: rolling back from 5.11.0.31 to 5.11.0.25 restored the wifi

chili555 avatar
cn flag
Please try: `sudo service NetworkManager restart` and tell us if there is an error. Welcome to Ask Ubuntu.
Faire avatar
se flag
@chili555 Thanks for the welcome! No error there.
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