After updating to kymijoki, network connection not stable

asked 2017-12-05 10:46:54 +0200

updated 2017-12-05 14:56:32 +0200

jiit gravatar image

As the title says, after updating to the latest release I do have serious problems with network connections. - after a while the (GSM, UMTS) connection gets lost and will not be restored automatically; - because of that, the battery drowns rapidly;

But, upon recognition, I can sometimes restore manually reconnect by disabling automatic network selection, disabling network at all, and enabling again. Works 8 of 10 times. Sometimes only reboot helps :-(

any hints ?


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have the same Problem. Ich work in a Building with very Bad Mobild connection, so my Phone often switches between GSM/UMTS an Wireless LAN. and after leaving the Building i have to set to flightmode and then back to activate my Internet connection.

Raymaen ( 2017-12-05 14:24:35 +0200 )edit

I think I found the battery consumer: carddav-client is running at 45%-66% cpu load for very long time as can be observed with the lighthouse application. Although I have configured only twice-a-day synchronization.

How can i kill this app ?

Thomas MIGLINCI ( 2017-12-05 15:23:46 +0200 )edit

I can confirm this on JP1. I'm working in a parking carage underground so there's no access to network while being there. However, I've noticed that when taking a break every second time (coming up from underground) the phone just drops all connections and won't connect to the network; basically just needs reboot and after that it works normally.

I can also confirm the battery draining issue. Of course searching the network all the time drains your battery even more. Yet, when the network is dropped (and won't connect back unless reboot), it's still draining the battery pretty much.

Sakke ( 2017-12-06 16:02:00 +0200 )edit

I can confirm that with on JP1. Did not have such problems before the last update. Hint: instead of rebooting, you can do "systemctl restart ofono" in terminal as root, to get connection back.

Holger ( 2017-12-27 02:46:48 +0200 )edit