C6300 router Unable to connect to certain websites.

[Kwhyte]

I have a C6300 cable modem router that is not letting any devices in my house connect to most websites.
The websites I CAN acess are IPv6 websites, like Facebook and Google websites.
Other than those, I am unable to access any other websites, like Reddit.
When looking at my adaptor settings on my computer, it shows that there is no connection to IPv4 websites.

How can I fix this issue quickly( I need to buy school books soon)?

[TheEther]

Are you saying that your computer has no IPv4 address?

Do you know if router mode is enabled on the C6300?  You can find the setting under ADVANCED > Administration > Router Mode.

[Kwhyte]

I apologize if I was unclear, but on all devices in my house, I am unable to access any sites that use IPv4, instead of IPv6. I am able to access these sites when connected to other internet connections/routers, so I know the problem is not with my computer or my other devices.

[TheEther]

I understand, but I would still like to know if router mode is enabled on your C6300.  If router mode is disabled (i.e. the C6300 is in bridge mode), then only one device will obtain an IPv4 address.  This could explain your symptoms.