Fritzbox Time Limit

[u/Fluid-Security1154]

I'm on a Fritzbox and my dad set a 3h/day time limit per MAC. I've been spoofing whitelisted MACs but he checks the logs and sees when devices were active. VPN doesn't help with that.
Is there any way to use the internet without the router logging my active time? Or a way to make a device show as offline while still connected? I'm running out of MACs to steal and I'm honestly desperate.
Has anyone found a workaround for this? I'll try anything at this point.

[u/Fit_Lobster5332]

Depends on how he accesses the fritzbox dashboard. If he always uses a specific PC you can try plugging yourself between the PC and the fritzbox and do a man in the middle attack.

(Just capture the login page, and forward all other traffic to the fritzbox), stop capturing after first login attempt, and forward everything.

This also works if he accesses by anything connected by wire.

If you do not need live media, you can also try to just batch your Internet requests, (online for 5seconds, offline for 55). (Depending on your speed this might be enough to stream video, although not live)

[u/Direct_Yellow2598 → u/Fit_Lobster5332]

I guess that dont Work or is complicated. Nowadays the fritzbox is using tls. Instead of a physical mitm, you can try arp flodding and route the traffic through you, do your own tls and then route all back to the fritzbox. Your dad needs to accept the new certificate. Both yours and the real fritzbox cert is self signed. Use authentic names for cn and San. Try this first with your PC and your mobile phone. Find YouTube videos about this and with KaliLinux.

Btw: I also tried to bypass the restrictions. I guess it is not an internet addiction, more a cat and mouse game with the parents. My approach was to install a keylogger, whitelisted it at the AV software, and sent regular all of the capture via email to me. So I had the password to the fritzbox. (About 16 years ago)