From your description, it seems to be OK. The access point is connected to the WAN interface of the router? Then you configure static IP as WAN connection type on the TL-WR740N?

I don't think you can do something else to have more connections. It is normal that a router has limitation on the number of wireless clients.

How do you define the connection between Thomson and TP Link is inconsistent? How about this: PC A is connected to Thompson router by an ethernet cable and PC B is connected to TL-WR740N by cable as...

Hi Ahad1988, what's the default gateway? You can not even access the router with the default gateway address? What's the error message you get? Besides, factory reset the router by pressing its reset...

Bin files can be found from www.tp-link.com/en/support/3g/. But i don't see the one for option icon 225. Why not send an email request to support@tp-link.com? Maybe, they have something else for you...

What is the internet gateway utility? Can you give more details about this? A screenshot ? Before you bought this TL-MR3040, every time when you connect your Sony laptop to wifi and access internet,...