since there are several people here who report this behavior on their dwr-921, i doubt that it's a problem with your actual device
a clean and automated installation
if you do this, please let us know if it solves the problem
by the way, what experience do you have with version 18.06.4? from my experience, it got even worse. versions 18.06.2 and 18.06.3 sometimes provided a stable connection for two or three days, in 18.06.4 the connection gets lost every single day
i still hope that somebody who knows the maintainer of the dwr-921 builds will reply to this thread
It's always random!
Now it's working quite good since several days.
And that means every 5 minutes a cron runs pingRouterCheckReboot.sh
Here is some data from latest logs, each row is a moment in day where the ping script failed, when two times are given it refers to a continued failure of the ping action:
As you can see in the last days I'm experiencing few issues.
But sunday 22 was one of those days!
In that day I also tested the sim card on my phone and it was working.
I tested also a data sim of a different carrier and it was giving the same problem: no connection on the router, normal connectivity on my smartphone.
Since sunday 22 I also disabled VPN and removed option auto '0' from /etc/config/network
In doing this I also noticed that the apn was wrong, it was wap.unomobile..it (double dot), and did not prevent the router to connect.
Now I'm going to reactivate VPN
For the automated clean installation I had no feedback
would you mind posting your changed script here? it would be helpful for me since i don't know exactly which parts to change
it is really extreme that your router sometimes loses internet connection every few minutes, i think i already would have given up. it's not that bad with mine, but also something that i want to be solved.
you seem to have some technical knowledge - do you have any idea what is exactly happening in openwrt when the internet connection gets lost? i mean, is it a process that is stopped automatically or something like that?