connection timed up with two different lamp

Hello,i have a problem with two different lamps.I can not configure them.
I set my router on 2.4g
I tried all servers on the application (china, singapore, etc)
I tried with 3 phones of different brands.
I tried my neighbor’s router.
I tried to create an hot spot with my phone.
Now i dont know what to do, everytime the configuration stops with " connection timed up ".

Please make sure the lamp is connected to your router. If yes, try changing DNS of your router to

Thank you very much. I solved my problem. Now they work perfectly