Gateway offline, Packetloss

[Apaar]

@stephenw10 The interface is detecting on the other ISP, But the ISP wont block the mac address. I ll check the table.

[Apaar]

@stephenw10 IP is showing permanent with the gateway incomplete, What does that mean ?

[RobH 0]

@apaar I'm curious, if you reboot pfSense, does it then come up or does it stay down?

[Apaar]

@robh-0 The link is up but the gateway is down.

[RobH 0]

@apaar I understand. Mine started doing the same thing recently. If I disconnect one ISP from pfSense, the gateway goes down due to packet loss and fails over to the other ISP as it should. When I reconnect the ISP, it never comes back up. I tried all sorts of things just as you have to resolve this issue, but nothing works. I rebooted the pfSense box and all WANs came back as they were supposed to.

[Apaar]

@robh-0 Sir I m using only 1 ISP on my Pfsense route, I hooked it up to my other ISP to check the DHCP and the lan ports.
I m using only one static ip ISP on the Pfsense router, Which is just showing gateway down. I have restarted, Factory reset the router multiple times and still the same, I know the configuration is correct because i remember it very well, also the ISP technician had a look at the configuration and said it should work but it isn't.

[RobH 0]

@apaar The issue I'm experiencing would occur if I only had one ISP.

What happens if you disable gateway monitoring? You really don't need monitoring with only one ISP.

[SteveITS]

@apaar said in Gateway offline, Packetloss:

incomplete

https://docs.netgate.com/pfsense/en/latest/monitoring/status/arp.html
"A MAC address listed as (Incomplete) indicates that the firewall has attempted to discover the host via ARP but it has not yet received a valid response."

Can you post your WAN interface settings?

[Apaar]

This post is deleted!

[Apaar]

@steveits Sure!

[stephenw10]

Mmm, the gateway is not responding to ARP.

I assume you are connected to the LAN so it's unlikely the actual NIC is concorrect.

So I'd bet the ISP modem/router is blocking the MAC for some reason. Did you try rebooting that?

Steve

[Apaar]

@stephenw10 i did reboot it, i will get it checked by ISP again. Thank you sir

[stephenw10]

The last thing I'd try there is to run a packet capture on the WAN and see if any traffic is coming into it at all.

https://docs.netgate.com/pfsense/en/latest/diagnostics/packetcapture/webgui.html

Steve

[Apaar]

@stephenw10 I have no clue about running packet capture, but i will try to do so.

[Apaar]

@stephenw10 I did do packet Capture, at first it didn't work. But then the second time gateway showed online and then went offline within 30 sec. I can share the packet capture file if you want.

[Apaar]

@stephenw10 Also now on the ARP Table it says WAN-Gateway- Expires in 651 Seconds.

[Apaar]

Gateway Still showing offline and there is no internet.!

[stephenw10]

Sure you can upload it to me here:
https://nc.netgate.com/nextcloud/s/AP2AyanaK52knSP

Something odd happening there though if the gateway did respond to ARP and then stopped.

You might try swapping the WAN and LAN assignments just in case it's something the Realtek NIC is doing. Though they are both Realtek.

Steve

[Apaar]

@stephenw10 Sure, I will try to swap them. Also i shared the file on the link.

[ashishgupta09229]

I'm curious, if you reboot pfSense, does it then come up or does it stay down?