More than one Wi-Fi device does not connect to TP-Link TL-WR841ND

Hello! I can’t connect more than one device to Wi-Fi at the same time. The router TP-link TL-WR841ND, iP static, and iMac in general no way neither through Wi-Fi nor with the help of a cable through the LAN router, iMac is connected only when you connect the wire enternet to it.

Answer

Hello. I think there is some problem in the settings. You have not described the problem in detail. Please, write more details point by point:

Which IP is static? Where? It is important!
Is the DHCP server on the router disabled?
When one device is connected, what exactly is the problem (error) when connecting the second device?
What kind of internet?
Did everything work before, or is the problem right after setup?

If you can’t connect more than one device via wi-fi, then most likely something with IP settings (DHCP server). And it may be that the router is not properly configured to work with your ISP. The article on configuring TP-link TL-WR841ND may also be useful.