I don't have internet and I need help.

[RichieLickMe]

I ran the "ipconfig /flushdns" command in the cmd. It froze and it closed. Since then I don't have internet. Can anybody help? 

[Eigenvektor]

That clears your DNS cache, which shouldn't bump you offline, unless you have no working DNS server. Have you tried "ipconfig /renew" to get current settings from DHCP?

 

If you get no DNS server, you could try manually setting it to 1.1.1.1 (Cloudflare) or 8.8.8.8 (Google) or 9.9.9.9 (Quad9).

[RichieLickMe]

12 minutes ago, Eigenvektor said:

That clears your DNS cache, which shouldn't bump you offline, unless you have no working DNS server. Have you tried "ipconfig /renew" to get current settings from DHCP?

 

If you get no DNS server, you could try manually setting it to 1.1.1.1 (Cloudflare) or 8.8.8.8 (Google) or 9.9.9.9 (Quad9).

I tried manually setting it but it stills says I'm offline.

[Electronics Wizardy]

can you ping your router? Are you getting a dhcp lease?

[Eigenvektor]

Right click Network > Open Network & Internet settings, then click on View your network properties. What does it show there?

 

You should have an IP address (that does not start with 169.254.x.x), a DHCP server, a default gateway (your router's IP) and at least one DNS server.

[RichieLickMe]

4 minutes ago, Eigenvektor said:

Right click Network > Open Network & Internet settings, then click on View your network properties. What does it show there?

 

You should have an IP address (that does not start with 169.254.x.x), a DHCP server, a default gateway (your router's IP) and at least one DNS server.

Yes I can see those. I know the pic is in Hungarian, sorry about that. 

[RichieLickMe]

8 minutes ago, Electronics Wizardy said:

can you ping your router? Are you getting a dhcp lease?

I can ping my router but idk what a DHCP lease is. 

[Eigenvektor]

4 minutes ago, RichieLickMe said:

I can ping my router but idk what a DHCP lease is. 

Your DHCP server gives you an IP address. That address is valid for a certain time, before your computer is expected to renew it. That's a "lease". You can see it in your screenshot actually (Should be "DHCP-bérleti jog kezdete/vége").

[Eigenvektor]

2 minutes ago, RichieLickMe said:

I can ping my router but idk what a DHCP lease is. 

What happens if you ping 1.1.1.1?

[RichieLickMe]

1 minute ago, Eigenvektor said:

What happens if you ping 1.1.1.1?

 

[Eigenvektor]

Well, that means you're online, because otherwise you couldn't ping a DNS server that is on the Internet

 

It may just be Windows acting stupid. You should be able to open "1.1.1.1" in your browser. If that works and something like "google.com" still doesn't it means you "only" have an issue resolving IP addresses.

 

Edit: Have you simply tried rebooting?

[RichieLickMe]

6 minutes ago, Eigenvektor said:

Well, that means you're online, because otherwise you couldn't ping a DNS server that is on the Internet

 

It may just be Windows acting stupid. You should be able to open "1.1.1.1" in your browser. If that works and something like "google.com" still doesn't it means you "only" have an issue resolving IP addresses.

 

Edit: Have you simply tried rebooting?

yeah, 1.1.1.1 works. But Google isn't working. Yes I have rebooted like 5 times already. I have been dealing with it for like 2 days now. 

[Eigenvektor]

3 minutes ago, RichieLickMe said:

yeah, 1.1.1.1 works. But Google isn't working. Yes I have rebooted like 5 times already. I have been dealing with it for like 2 days now. 

Hm, so you're online in general, but it looks like DNS isn't working properly for some reason. Can you do "nslookup google.com" on the command line? That should show which DNS server it's attempting to use.

 

You can also try "ipconfig /registerdns" and then retry the first command.

[RichieLickMe]

4 minutes ago, Eigenvektor said:

Hm, so you're online in general, but it looks like DNS isn't working properly for some reason. Can you do "nslookup google.com" on the command line? That should show which DNS server it's attempting to use.

 

You can also try "ipconfig /registerdns" and then retry the first command.

 

[Eigenvektor]

2 minutes ago, RichieLickMe said:

 

So... you should be able to open google.com in your browser now, because that shows that your computer can resolve the name to an IP address

[RichieLickMe]

9 minutes ago, Eigenvektor said:

So... you should be able to open google.com in your browser now, because that shows that your computer can resolve the name to an IP address

Well I can't open it. It's just loading and says "identifying server" in the bottom left corner or something like that

[Eigenvektor]

1 minute ago, RichieLickMe said:

Well I can't open it. It's just loading and says "identifying server" in the bottom left corner or something like that

Have you tried a different browser? Any weird network settings in your browser? Any weird plugins? Did you use a VPN previously?

 

For example in Firefox, go to (Menu) > Preferences > General, scroll to the bottom, Network Settings > Settings... Does it show "No proxy" or something else?

[RichieLickMe]

8 minutes ago, Eigenvektor said:

Have you tried a different browser? Any weird network settings in your browser? Any weird plugins? Did you use a VPN previously?

 

For example in Firefox, go to (Menu) > Preferences > General, scroll to the bottom, Network Settings > Settings... Does it show "No proxy" or something else?

No but I don't have internet on Spotify, Discord or Steam. I used a Pi-hole for a while but I think that shouldn't affect anything since the pi-hole is off. 

[Eigenvektor]

Just now, RichieLickMe said:

No but I don't have internet on Spotify, Discord or Steam. I used a Pi-hole for a while but I think that shouldn't affect anything since the pi-hole is off. 

Maybe your router's DNS is still pointing to the pi-hole? If so, turning that off would affect you.

[RichieLickMe]

4 minutes ago, Eigenvektor said:

Maybe your router's DNS is still pointing to the pi-hole? If so, turning that off would affect you.

I didn't use it network wide. So it's turned off

[Eigenvektor]

24 minutes ago, RichieLickMe said:

I didn't use it network wide. So it's turned off

Hm, running out of ideas here. You can ping stuff on the Internet and resolve IP addresses, so technically you're online. Something must be messing with your browser.

 

You could try the following on PowerShell:

New-Object System.Net.Sockets.TcpClient("www.google.com", 80)

You should see "Connected: True" in the output. If you don't, then something is blocking your connection to port 80 (HTTP). You can try the same with port 443 (HTTPS). If neither of those works, then something is preventing you from connecting to port 80. Might be a firewall, might be a virus.

[RichieLickMe]

14 minutes ago, Eigenvektor said:

Hm, running out of ideas here. You can ping stuff on the Internet and resolve IP addresses, so technically you're online. Something must be messing with your browser.

 

You could try the following on PowerShell:

New-Object System.Net.Sockets.TcpClient("www.google.com", 80)

You should see "Connected: True" in the output. If you don't, then something is blocking your connection to port 80 (HTTP). You can try the same with port 443 (HTTPS). If neither of those works, then something is preventing you from connecting to port 80. Might be a firewall, might be a virus.

Yeah I can't connect to either of them. What can I do about that? I'm 90% sure it's a firewall issue because I have both Malwarebytes and Avast. 

[RichieLickMe]

26 minutes ago, Eigenvektor said:

Hm, running out of ideas here. You can ping stuff on the Internet and resolve IP addresses, so technically you're online. Something must be messing with your browser.

 

You could try the following on PowerShell:

New-Object System.Net.Sockets.TcpClient("www.google.com", 80)

You should see "Connected: True" in the output. If you don't, then something is blocking your connection to port 80 (HTTP). You can try the same with port 443 (HTTPS). If neither of those works, then something is preventing you from connecting to port 80. Might be a firewall, might be a virus.

 

[Eigenvektor]

12 minutes ago, RichieLickMe said:

Yeah I can't connect to either of them. What can I do about that? I'm 90% sure it's a firewall issue because I have both Malwarebytes and Avast. 

I suspect either of them might have seen that DNS flush as some form of attack. You could try disabling them temporarily or see if either of them reports suspicious activity. If so, there might be an option to tell them that stuff is OK. Not familiar with either of them though.

[RichieLickMe]

4 minutes ago, Eigenvektor said:

I suspect either of them might have seen that DNS flush as some form of attack. You could try disabling them temporarily or see if either of them reports suspicious activity. If so, there might be an option to tell them that stuff is OK. Not familiar with either of them though.

It's not the antiviruses because Avast has a pop-up when it detects something and malwarebytes doesn't have a real time protection.