Laptop connects to other network but not to my home wireless

Question

My home network's wireless SSID is say "XYZ"

I also have an ethernet wire from the same router.

I have two laptops A and B

Earlier both A and B were able to connect to my home internet through the ethernet and wireless.

Suddenly, the laptop B can no longer connect to XYZ or through ethernet. When I do plug the wire, i get the connection icon all green but when I try to access any web page it errors out (page not found)

But strangely laptop B connects to my neighbours wireless SSID "ABC". I have also tested laptop B with other networks and it connects fine.

Laptop A and many other devices still connect fine with my home wireless "XYZ"

Strange thing is when my laptop B connects wireless through XYz, it gets the IP address but then none of the browsers (chrome,firefox, IE) can show any web pages.

What settings should I be checking on laptop B that is preventing it to connect to my home internet.

Thank you

Answer 1

A) check that your computer has a proper IP for your network (if your working laptop gets something on 192.168.x.x then so should the other)

B) check that you don't have a proxy configured for your web browser.

C) check that you can ping your router from the non-browsing laptop.

I'd focus on first getting the wired connection working first to simplify your troubleshooting. Don't worry about the wireless until you get wired working.

Answer 2

You are assuming that the lack of browsing is a problem with your network. I would do a full malware scan, and make sure that your machine is clean.

A handy tip: if you can ping a domain like google.com, your network connection is working just fine.