Question Rpi4 taking out my internet connection ?

[RileyMax1]

Not sure if this is router or rpi related
Trying to set up a freshly flashed Rpi4 for home assistant and everytime I plug the Ethernet cable into my router, I lose internet altogether.
Modem is an Asus rt-ax58u, other connections are my pc, my partners pc and a home base for my security cameras.
Any suggestions would be muchly appreciated

 

[RileyMax1]

Not sure if this is router or rpi related
Trying to set up a freshly flashed Rpi4 for home assistant and everytime I plug the Ethernet cable into my router, I lose internet altogether.
Modem is an Asus rt-ax58u, other connections are my pc, my partners pc and a home base for my security cameras.
Any suggestions would be greatly appreciated

 

[Lutfij]

Please stick to one thread

 

[cruisetung]

and a home base for my security cameras.

What do you mean "home base"? btw, Asus rt-ax58u is a router, not a modem.

==

First come to mind is that you have an IP address conflict between devices.

Check and list IP addresses for your router, RPI4, both PCs and "home base"for security cameras

 

[OldSurferDude]

You can connect to your RPi wirelessly instead of (not in addition to) hardwired.

When you create your RPi image, do you specify the WiFi SSID and password? And also enable the VNC server? Once your RPi is booted, you'll have to go to the router to find its IP address. Once the IP address is found, you can use a VNC viewer to log into your RPi.

If your internet is still getting hosed, it's your RPi.

Another thought, you're connecting the RPi to one of the yellow RJ45 ports, not the blue one, Right? 😱

 

[Ralston18]

@RileyMax1

Same question as @cruisetung - "home base"?

If not a duplicate IP address then another thought is that a network loop is being created. (Device A connected to Device B connected to Device C connected to Device D connected to Device A again.)

As I understand your post, your network is similar to the following line diagram where -----> represents an Ethernet connection and ~~~~> is a wireless connection:

ISP === (coax, DSL, fiber ===> [Modem]----->[WAN port] Asus Router [LAN ports] ------> to your PC, your partner's PC, RPi4, and "Home Base"

Plus ~~~~> from the router to any network wireless devices.

Home base serving the cameras - correct? How are the camera's connected?

Make and model modem?

Feel free to edit and correct my line diagram as necessary. Include other network devices as well.

Make note of the ip address and mac for each network device. There should be no duplicates. There should only be one router providing DHCP ip addresses to network devices.

Do the camera's have static IP addresses assigned?

You can use "ipconfig /all" and "arp -a" (without quotes) to help identify devices, ip addresses, and macs.

This router?

https://dlcdnets.asus.com/pub/ASUS/wireless/RT-AX58U/E23448_RT-AX58U_V2_UM_V2_WEB.pdf?model=RT-AX58U

Reference the connectivity diagrams on physically numbered Pages 12 and 13.

Also you can make use of the Administration features per Section 3.3 beginning on Page 26 to learn more about the router's and network's configuration.

Section 3.9 discusses DHCP.

Objective simply to help see the "big picture" to help with the troubleshooting effort.