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24.1 Legacy Series / Re: Opnsense requires reboot after WAN goes down
« on: June 15, 2024, 03:51:03 pm »
For a few months I've also been chasing this issue. These two posts are probably in the same vein, and suggests scripts that will reload the interface when the WAN drops:
https://forum.opnsense.org/index.php?topic=18300.0
https://forum.opnsense.org/index.php?topic=11928.0
This problem started for me when I switched ISPs. Been using pfSense then OPNsense for years, and switched from a fiber ISP (with modem/router combo unit) to a cable ISP (modem only). I know you said you have a modem/router in modem-mode, so perhaps that is equivalent to my setup.
Since switching to cable, every 1 to 3 days the WAN goes down, but the interface shows UP and has a valid IP. I tried both a TC4400 and a Hitron CODA56 modem, but the issue exists with both.
I run OPNsense as a virtual machine under Proxmox. Because the VM is connected to a bridge interface, OPNsense cannot tell if the physical link goes down between the modem and the server NIC. You didn't mention if you use a VM or not, but this is my hypothesis about why this happens to me. I suspect the physical link must drop briefly, and the modem refuses to provide WAN access until the router requests a new lease over DHCP.
[Edit] Of course, you said you have a static IP, but perhaps the reload is the common thread?
If I go into Interfaces>Overview>WAN and click Reload, the WAN link comes back every time. This is more or less what Franco said to try below. A reboot will also accomplishes this.
While using a script to check the link and trigger a reload every minute would work (see forum posts linked above), I've been hoping for a more elegant solution
https://forum.opnsense.org/index.php?topic=18300.0
https://forum.opnsense.org/index.php?topic=11928.0
This problem started for me when I switched ISPs. Been using pfSense then OPNsense for years, and switched from a fiber ISP (with modem/router combo unit) to a cable ISP (modem only). I know you said you have a modem/router in modem-mode, so perhaps that is equivalent to my setup.
Since switching to cable, every 1 to 3 days the WAN goes down, but the interface shows UP and has a valid IP. I tried both a TC4400 and a Hitron CODA56 modem, but the issue exists with both.
I run OPNsense as a virtual machine under Proxmox. Because the VM is connected to a bridge interface, OPNsense cannot tell if the physical link goes down between the modem and the server NIC. You didn't mention if you use a VM or not, but this is my hypothesis about why this happens to me. I suspect the physical link must drop briefly, and the modem refuses to provide WAN access until the router requests a new lease over DHCP.
[Edit] Of course, you said you have a static IP, but perhaps the reload is the common thread?
If I go into Interfaces>Overview>WAN and click Reload, the WAN link comes back every time. This is more or less what Franco said to try below. A reboot will also accomplishes this.
While using a script to check the link and trigger a reload every minute would work (see forum posts linked above), I've been hoping for a more elegant solution