I faced to the problem again. You can see i can not ping hiveos.farm from the console while i can ping it from my windows cmd at the same time.

I noticed when this matter occurred sometimes i could ping from both console and my windows but the rig could not send stats.
I must to add, during the matter, i didn't lost my shares and also could not see hashrate drop on nanopool report page. While mining pool have offline Rig email notification, I didn't got any email during the matter that caused. I feel it's something wrong with Hiveos server that could not report to it's web panel (of course in this case).
How can i investigate this matter?
I can't say a lot from your screen shot.
If you give me a PM with ssh access i will be able to look at your problem when it repeats.