Unfortunately, the issues persists on centos7. I'm running an intel nuc DN2820FYKH which uses intergrated wifi&BT module (intel wireless-N 7260 according to the nuc spec sheet)
The problem is every 20-30 hours i'll typically loose network connectivity which appears to be caused by the OS semi-freezing up. GUI and console seem to run fine (excluding network access), except when i try to interact with systemctl and ifdown/ifup which just seems to get stuck with no output reguardless of how long i leave it. The loss of network *COULD* be related to DHCP lease (2hours) being unable to renew.
The nuc also goes into s3 sleep overnight and while at work so typically online between 6-10PM
what i've found is it's related to bluetooth somehow. the last two freezes i've experienced i've disconnected all bluetooth devices and the system resumes functionality again. Network returns, service/systemctl can interact with services again and all is well. Bluetooth devices can then be reconnected without immediate issues for another 20-30hours.
every 5 seconds dmesg reports
Code: Select all
power_supply hid-00:04:20:f4:d0:e3-battery: driver failed to report `capacity' property: -5
systemctl status bluetooth does also show an error
Code: Select all
Can't get HIDP connection info
the centos install started life as minimal, added EPEL repos and installed LXDE along with 'blueberry' bluetooth package to manage BT devices.
what i'm next going to try is disable/enable bluetooth service as the machines goes in and out of S3. not sure if that will help the issue or not, but worth a go.
Any ideas on what the root problem might be? failing hardware, OS bug, missing package...?