[SOLVED] [NEED HELP] Can't connect to Proxmox

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ReactioNIBTA

New Member
Apr 17, 2025
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Hello everyone!

Sorry for a kinda long post, but I believe I've tried everything and still haven't got this solved so I need anyone who can help before I start going crazy and just reinstall my proxmox

So I have this setup as my network:

1 ISP Modem - connected to Router A [WLAN] - then from router A connected to router B [LAN-WLAN] (I originally put my Proxmox & PC in here [router B]) [When I say connected I mean LAN-to-LAN]

Previously I set my router B as a gateway, because of that when I tried to connect to my NAS using router A it doesn't work (because from what I read if I set it up as gateway it basically create another network or something along those line?)

Now I already reset my router B into an access point and change it from LAN-WLAN into LAN-LAN, where I believe it basically just extending router A and supposedly I should be able to access my Proxmox or any other VM from router A even though the NAS is connected to router B

But well, I still can't connect using router A (Wi-Fi A), hence why I made this post; is there any reason why this happened? Is there anything I should change on my Proxmox config?

Here's the list that I've tried:
  1. Moving the Proxmox NAS to connect directly to router A where weirdly enough I still can't connect from Wi-Fi Router A but I still can connect from Wi-Fi router B
  2. I tried connecting to Proxmox from router C [WLAN] where it's connected WLAN [LAN] from router B and it works
  3. Changing /etc/network/interfaces and /etc/hosts address and gateway - where previously set up from address 192.168.0.1 [Router B] and changed it into 192.168.1.1 [Router A]
  4. Rebooting everything [Router, NAS, etc]
  5. Resetting router B, but proxmox only can be connected using Router B and below connection
  6. Already checked the router, my Proxmox and other stuff is listed on the LAN port and DHCP (already pointed to the new IP)
What should I do next? Any suggestion is greatly appreciated
Here I attach what I've tried to make it more easy to understand

Thanks!


1744920515149.png


1744920585635.png

1744920630950.png
 
Last edited:
Update: I'm on my wits end
I reinstalled my Proxmox when it's connected to Router A and while router B is disconnected

I still can't access the GUI or any other VM if I'm connected to router A, but I can connect to them from router that are connected to router A.
So is this router problem? is this even possible?
My router is ZTE F670L
 
After a very niche search, and the correct keyword
seems like I found the answer...hopefully

I will mark this as solved first

1744978374632.png
 
ReactioNIBTA said:
Hello everyone!

Sorry for a kinda long post, but I believe I've tried everything and still haven't got this solved so I need anyone who can help before I start going crazy and just reinstall my proxmox

So I have this setup as my network:

1 ISP Modem - connected to Router A [WLAN] - then from router A connected to router B [LAN-WLAN] (I originally put my Proxmox & PC in here [router B]) [When I say connected I mean LAN-to-LAN]

Previously I set my router B as a gateway, because of that when I tried to connect to my NAS using router A it doesn't work (because from what I read if I set it up as gateway it basically create another network or something along those line?)

Now I already reset my router B into an access point and change it from LAN-WLAN into LAN-LAN, where I believe it basically just extending router A and supposedly I should be able to access my Proxmox or any other VM from router A even though the NAS is connected to router B

But well, I still can't connect using router A (Wi-Fi A), hence why I made this post; is there any reason why this happened? Is there anything I should change on my Proxmox config?

Here's the list that I've tried:
  1. Moving the Proxmox NAS to connect directly to router A where weirdly enough I still can't connect from Wi-Fi Router A but I still can connect from Wi-Fi router B
  2. I tried connecting to Proxmox from router C [WLAN] where it's connected WLAN [LAN] from router B and it works
  3. Changing /etc/network/interfaces and /etc/hosts address and gateway - where previously set up from address 192.168.0.1 [Router B] and changed it into 192.168.1.1 [Router A]
  4. Rebooting everything [Router, NAS, etc]
  5. Resetting router B, but proxmox only can be connected using Router B and below connection
  6. Already checked the router, my Proxmox and other stuff is listed on the LAN port and DHCP (already pointed to the new IP)
What should I do next? Any suggestion is greatly appreciated
Here I attach what I've tried to make it more easy to understand

Thanks!


View attachment 85090


View attachment 85091

View attachment 85092
Click to expand...
ReactioNIBTA said:
Hello everyone!

Sorry for a kinda long post, but I believe I've tried everything and still haven't got this solved so I need anyone who can help before I start going crazy and just reinstall my proxmox

So I have this setup as my network:

1 ISP Modem - connected to Router A [WLAN] - then from router A connected to router B [LAN-WLAN] (I originally put my Proxmox & PC in here [router B]) [When I say connected I mean LAN-to-LAN]

Previously I set my router B as a gateway, because of that when I tried to connect to my NAS using router A it doesn't work (because from what I read if I set it up as gateway it basically create another network or something along those line?)

Now I already reset my router B into an access point and change it from LAN-WLAN into LAN-LAN, where I believe it basically just extending router A and supposedly I should be able to access my Proxmox or any other VM from router A even though the NAS is connected to router B

But well, I still can't connect using router A (Wi-Fi A), hence why I made this post; is there any reason why this happened? Is there anything I should change on my Proxmox config?

Here's the list that I've tried:
  1. Moving the Proxmox NAS to connect directly to router A where weirdly enough I still can't connect from Wi-Fi Router A but I still can connect from Wi-Fi router B
  2. I tried connecting to Proxmox from router C [WLAN] where it's connected WLAN [LAN] from router B and it works
  3. Changing /etc/network/interfaces and /etc/hosts address and gateway - where previously set up from address 192.168.0.1 [Router B] and changed it into 192.168.1.1 [Router A]
  4. Rebooting everything [Router, NAS, etc]
  5. Resetting router B, but proxmox only can be connected using Router B and below connection
  6. Already checked the router, my Proxmox and other stuff is listed on the LAN port and DHCP (already pointed to the new IP)
What should I do next? Any suggestion is greatly appreciated
Here I attach what I've tried to make it more easy to understand

Thanks!


View attachment 85090


View attachment 85091

View attachment 85092
Click to expand...
Your set shows different networks...you have your proxmox ve on dff LAN from the PC you are trying to connect it with....to resolve this , you should use router A or B as your LAN network and gateway with your home devices(pve,pc and nas) connected to and the configure the wife router as an AP where you can connect to LAN using the AP or an alternative is to configure routing between the different networks , and if your routers dony have that capabilty you can install pfsense
 
IFC said:
Your set shows different networks...you have your proxmox ve on dff LAN from the PC you are trying to connect it with....to resolve this , you should use router A or B as your LAN network and gateway with your home devices(pve,pc and nas) connected to and the configure the wife router as an AP where you can connect to LAN using the AP or an alternative is to configure routing between the different networks , and if your routers dony have that capabilty you can install pfsense
Click to expand...
Hi! Thank you for answering
The thing is I can connect through using router B, I already set it up as AP, and checked it have the same IP range from router A
I read somewhere else and they said it's because my router isolated LAN IPIP so I can't access it directly through Wi-Fi

so right now I'm planning to place order for new fiber router, but currently still searching for a good one that doesn't have this restriction
But thanks though!
 
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