@Solla-topee 
Hi,
sorry, I dont think it is possible do that remotely. Secondly even if it could be done, reboote router may create problems with other smart things connected to it.
I have no idea of what router i have - the internet provider installed it.
Does it means that the security cam will be not working for months until i return back to my holiday home?
If so , not good at all.
The programers MUST be more careful and make more and better safety checks before they send an updated, especially when it is a security product.
I can see that You have a problem with make software right, it is second issue (first was L530 SW issue) and way more serious then the first one (you can read it in my tread in bulb section).