I have a reoccurring problem with one of the WAN connections. I currently have two internet connections, one VDSL and one 4G. The 4G connection is a RUT240 in bridge mode. Every so often the IP is renewed by the ISP but Sophos doesn't pick up on this and fails over to the other connection. Manually going into interfaces and setting it to static and back to DHCP fixes it. Is there a way to auto renew the DHCP lease on a WAN interface say every 24h or better when it fails to ping DNS it first tries to renew the IP address?
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