Internet stops after configuring the forwarding and applying the custom DNS settings.
Internet stops after configuring the forwarding and applying the custom DNS settings.
The accurate explanation is that Pi-hole fails whenever a port is forwarded to the print server, and DNS is configured to point to the local IP address. These issues are separate problems with Pi-hole and the print server. I also noticed similar results when redirecting other devices besides RBp, which affected internet access. Thank you for clarifying this.
This suggests the problem might be with the router itself. Have you attempted switching the print servers port to a value under 1023 and ensuring the port forward rule uses only TCP? If you have the rule set but the server isn’t working, does the issue persist? I’ve never encountered this before—your router seems to be behaving oddly. I dislike asking these questions, but have you tried restarting your router?
I also gave it all I had and then realized something. Oh my god, I’m really stupid. My router had a static IP assigned... and because I got a public one, it was changed. After the router received packets from Pi-hole asking where to send them—like to google.com—it forwarded them to my ISP’s address, which didn’t exist anymore. It had no other option but to wait until it got a response. That’s why my existing connections stayed functional. It also assumed the internet was working because it could ping whatever it was trying to reach for testing. The router already knew the IP needed to talk to the server. Honestly, I’m not 100% sure this was the main issue since I also tried adjusting Pi-hole settings, but I’m pretty confident—about 95%—that it was the problem. If I didn’t hesitate and reset the router, it would have fixed itself since I’d notice I needed to set a static IP. I just didn’t want to lose the device nicknames saved on the router, so I didn’t even ask if there’s another way. I’m studying IT but not networking, so maybe my understanding is off. Thanks!
I tried fixing it for a short time, but it stopped again. I’m confused about why it would shut down on its own. Probably needs a firmware update. It might not be working right because Phicomm closed in 2018 and hasn’t sent any updates since.
It works, but I can't install it using the "update router" option in the software. I have to take it apart and connect a console reader to its motherboard (TTL to USB) so I can trigger panic mode and load the first program it detects. This is new for me, though I can use the cheap TTL reader later. From what I've seen online, I don't need to worry about the voltage since I won't connect the power pins—only data. Still, I'm a bit confused and hoping this goes smoothly. Good luck!