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.
Router is an Asus rt-ax58u, other connections are my pc, my partners pc and hub for my arlo 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.

 

[RileyMax1]

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? 😱definitely the

Definitely the fourth yellow port, although it wouldn't have surprised me.
I did consider having it connected via WiFi, but I want to try rectify this first if I can, I don't like it when things don't work 😅
I used the raspberry pi imager and flashed HA onto the SD card, I don't believe it gave me the option for anything other than flashing.

This is also my first time messing around with Home assistant, apologies if this is all very basic, I've not touched any of this stuff in quite a while

 

[RileyMax1]

@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:

Aussie Broadband === (fiber) ====> NBN NTD ---> Asus Router [LAN ports] ------> to your PC, your partner's PC, RPi4, and Arlo Hub

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.

Yeah sorry for the incorrect terms, I wrote this after quite a big day
I've edited your line diagram to suit my setup

Cameras are connected to the hub via what I assume is its own mesh system, the hub is then on Ethernet back to the router

Modem wise, I have no clue what it is, it's just the basic NBN modem everyone with full fibre has here in Aus.

I will have a look at the IP addresses today and go from there, thanks for the detailed response

 

[Ralston18]

👍

Late thought: check the subnet masks as well.