home network fail to one computer

[Apo]

hello everyone, I have 3 computers, two of them got successfully connected in a network. except for my laptop. i found that if a change the laptops default gateway to the default gateway of the other two computers, the laptop will be connected but it won't have internet because the DHCP is disable. if i make win7 fix it, it will change the default gateway to a different IP, and back square one with no network connection to the other two computers any help help please!!!

 

[zigzag3143]

hello everyone, I have 3 computers, two of them got successfully connected in a network. except for my laptop. i found that if a change the laptops default gateway to the default gateway of the other two computers, the laptop will be connected but it won't have internet because the DHCP is disable. if i make win7 fix it, it will change the default gateway to a different IP, and back square one with no network connection to the other two computers any help help please!!!

Please give us some info abt the network setup.

 

[Apo]

INFO

its a LAN network, all three connected to a switch and the switch is connected to Huawai ADSL modem.
(the problem)laptop IPv4 190.75.46.143
mask 255.255.224
default gateway is 190.75.32.1
DHCP IPV4 SERVER 200.109.126.43
DNS 200.44.32.12
200.11.248.12


THE OTHER 2 COMPUTERS
IPV4 190.38.***.***
WITH DEFAULT GATEWAY
190.38.128.1
DNS 200.44.32.12
200.11.248.12
i changed manually the laptop's ip configuration and default gateway. changing it got the laptop into network but no internet.