9.2.1 Discussion

Hello guys
Installed the latest version to Tronsmart Vega S95 and booted from SD. Configured it and it seemed to work. Unfortunately when I left it half day without touch (it repeated 3times what means everytime…edit:now after 2hrs problem introduced again, grrr) and later tried to open IPTV, box is completely without the connection. Using WiFi (Ubnt Unifi AC router) connection which shows “failure/failed” state (all other WiFi clients have no issues so not a router problem). Wifi reconnection doesn’t work, Kodi restart the same failure behaviour. Only box reboot fixed the issue.
How can I create log without no option to ssh into the box, no possibility to create debug log via CoreElec Menu which will fail during the upload and url creation (logically), dmesg is cleared after fresh restart, etc…
Can anyone help? Does anyone have similar behaviour? Are there any option how to create logs locally so after reboot I can manually upload here?
Thank you!