Web admin interface of the Technicolor TG589vn v3 router. How do you turn off wifi?

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Web Admin Interface of the Technicolor TG589vn v3 Wireless ADSL2+/VDSL router.

How do you change wifi settings or turn wifi off, where do you set IP or DHCP information.
How do you setup port fowards or what does the port forward screen look like.

An initial video of the outside of the router is here:

[icz]

Do you know how to change nat type on this router ? Because i cant find the port forwarding settings

[zbizbu]

hi sir plz is there anyway to change mtu in this router

[zakariaamine]

is there any way to update the firmware or this is done automatically ?