"No Internet Access, Secured", but Internet works fine

Hi, I'm new here. Recently, my computer's wi-fi has been acting up, and I don't know what's wrong with it. It can connect to wireless networks just fine --and I can browse the internet with it-- but it keeps showing that there's "no Internet access". This wouldn't be a problem, if Spotify (for some reason, it keeps saying that I have no network connection) continued to work. It would be really cool if someone could help me with my problem, as, again, I have no idea what's wrong.

Here's some information on my laptop:
1. It's a Lenovo Legion Y740
2. I have run the windows troubleshooter, and it said the dns settings weren't properly configured.

Code:

Your computer appears properly configured, but the device or resource (DNS Server) is not responding

3. I have attempted to use the Cloudflare DNS before. It didn't work, but some of the settings I tweaked around with might still be there.
4. ipconfig shows Connection-Specific DNS Suffix as 1dot1dot1dot1.cloudflare-dns.com, but nslookup shows

Code:

Default Server:  1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa

and

Code:

Address:  fe80::1

5. The ip address and dns settings for ipv4 and ipv6 are configured to 'automatic'

Any help would be much appreciated. Thank you, whoever you are reading this thread, and I hope you all have a great day.

Thanks a lot for the help, dalchina! I downloaded DNSjumper like you said, though changing the DNS didn't seem to help. I then found out that the problem extended to other computers in the network as well, so my next thought was to restart the router. This worked, and the status is no longer showing up. Even though DNSjumper didn't help, I'm really grateful you mentioned it, as changing DNS has been a pain so far, to say the least. Once again, thank you so much for your help!

TL;DR: Restarting the router helped. DNSjumper is a handy tool to reset your DNS configurations to default settings