Hi, I have been using the windows shared internet option between two laptops (one connected trough wifi to internet and the second laptop connected with the first one with an ethernet cable), but out of the sudden the second laptop was unable to get online. When I check the ipconfig I noticed that the mask was no longer but and the default gateway was blank. I switch both laptops so the second one gives internet to the first one and they work perfectly, so its definitely a problem with the first laptop and not with the second nor the cable.

I reinstall the drivers of both the wifi card and the ethernet card but still face the same outcome. I also tried bridging the connection but I still get a blank gateway in the second laptop.

PS: Static Ip configuration does solve the problem but I really need the automatic assignment of IP and gateway.

Thanks in advance.