Sometimes when I'm about to use the internet it's not working and my computer shows the little yellow triangle in the network section.
Since the turning on and off method almost never works for router/modems I went to the modem's settings to see if anything was wrong and everything seemed fine except for the DNS settings, both primary and secondary DNS server addresses weren't the right ones, I can't remember what number it said except they started with 52. and my default DNS address starts with 200. when I change the DNS back to the default values and reboot my internet works just fine but after a while maybe a few hours or a day it happens all over again I have to change the DNS and reboot again, it's annoying and it shouldn't be happening, since it looks like a virus is doing this I did a scan with my antivirus (I use Avira), a scan with Malwarebytes and I also used Microsoft's Safety Scanner but nothing was detected, what else can I do?
Since the turning on and off method almost never works for router/modems I went to the modem's settings to see if anything was wrong and everything seemed fine except for the DNS settings, both primary and secondary DNS server addresses weren't the right ones, I can't remember what number it said except they started with 52. and my default DNS address starts with 200. when I change the DNS back to the default values and reboot my internet works just fine but after a while maybe a few hours or a day it happens all over again I have to change the DNS and reboot again, it's annoying and it shouldn't be happening, since it looks like a virus is doing this I did a scan with my antivirus (I use Avira), a scan with Malwarebytes and I also used Microsoft's Safety Scanner but nothing was detected, what else can I do?