wanted to thank all of you, at the end it was an issue with APN setup in the router.
During initial installation, internet connection was working on Windows a very for short time, based on that I concluded internet was working under windows.
I'm not sure how or why, probably due to similar APN of the internet provider since SIM card in LTE router was from a sub company of local tcom.
While in all versions of Linux mining OS it wouldn't work at all.
At the end of the day, frustrated, I'm installing windows 10 and OS won't activate.... checking... no internet connection, opened Chrome.... sub-company window message pop-up change the APN.
Once APN was changed windows and Linux mining OS got connected to the internet immediately
