Thanks for reply!
I did router reset and one of the intruders still appears eM Technics, Co Ltd. (Tv satellite box???)
I will try later the other suggestion
Another interesting thing, clock and date freezes when i turn off my computer, i.e., if i let it off for two days when i restart it its clock shows shutdown date & time.
By the way, upgrading the router firmware is not an option, i contact my cable Service and it doesnt allow me to do that, just told me they are going to track my connection until they find the problem, and ask me if i allow them to do that, i say yes.
Hope that solve my problem
i keep in contact