Downtime of 1 minute during renewing WAN IP

[Mr. Happy]

Every 32 hours my WAN connection goes down for 1 minute... As such not a big issue, but during calls it's a PITA...
The renewal time of the ipaddress is 4 days, but it gets renewed every 32 hours...
Where can I change this behaviour?

And more importantly, how can I prevent the connection to go down for 1 minute.
In the logging I found this, but this does not hint me in the right direction:

Code Select Expand

2020-11-25T17:30:14 opnsense[30029] /usr/local/etc/rc.newwanip: On (IP address: ###.##.###.##) (interface: WAN[wan]) (real interface: bge0).
2020-11-25T17:30:14 opnsense[30029] /usr/local/etc/rc.newwanip: IPv4 renewal is starting on 'bge0'
2020-11-25T17:30:14 dhclient[56458] New Routers (bge0): <WANIP2>.1
2020-11-25T17:30:14 dhclient[6882] New Broadcast Address (bge0): <WANIP>.255
2020-11-25T17:30:14 dhclient[99685] New Subnet Mask (bge0): 255.255.252.0
2020-11-25T17:30:14 dhclient[90625] New IP Address (bge0): <WANIP>.54
2020-11-25T17:30:14 dhclient[89327] DHCPREQUEST on bge0 to 255.255.255.255 port 67
2020-11-25T17:30:11 dhclient[89327] DHCPDISCOVER on bge0 to 255.255.255.255 port 67 interval 13
2020-11-25T17:30:01 dhclient[89327] DHCPDISCOVER on bge0 to 255.255.255.255 port 67 interval 10
2020-11-25T17:29:55 dhclient[89327] DHCPDISCOVER on bge0 to 255.255.255.255 port 67 interval 6
2020-11-25T17:29:51 dhclient[89327] DHCPDISCOVER on bge0 to 255.255.255.255 port 67 interval 4
2020-11-25T17:29:49 dhclient[89327] DHCPDISCOVER on bge0 to 255.255.255.255 port 67 interval 2
2020-11-25T17:29:44 dhclient[89327] DHCPREQUEST on bge0 to 255.255.255.255 port 67
2020-11-25T17:29:42 dhclient[89327] DHCPREQUEST on bge0 to 255.255.255.255 port 67
2020-11-25T17:29:40 dhclient[89327] DHCPREQUEST on bge0 to 255.255.255.255 port 67
2020-11-25T17:29:39 dhclient[89327] DHCPREQUEST on bge0 to 255.255.255.255 port 67
2020-11-25T17:29:38 dhclient[89327] DHCPREQUEST on bge0 to 255.255.255.255 port 67
2020-11-25T17:29:37 dhclient[89327] DHCPREQUEST on bge0 to 255.255.255.255 port 67
2020-11-25T17:29:37 kernel bge0: link state changed to UP
2020-11-25T17:28:57 opnsense[9477] /usr/local/etc/rc.linkup: Clearing states for stale wan route on bge0
2020-11-25T17:28:57 kernel bge0: link state changed to DOWN
2020-11-24T09:43:43 opnsense[20489] /usr/local/etc/rc.newwanip: On (IP address: <WANIP>.54) (interface: WAN[wan]) (real interface: bge0).

Some additional info:

Code Select Expand

cat /var/db/dhclient.leases.bge0
lease {
  interface "bge0";
  fixed-address <WANIP>.54;
  next-server <WANIP2>.1;
  option subnet-mask 255.255.252.0;
  option routers <WANIP2>.1;
  option domain-name-servers <DNS>.57,<DNS2>.215;
  option dhcp-lease-time 490060;
  option dhcp-message-type 5;
  option dhcp-server-identifier <DNS>.55;
  renew 5 2020/11/27 04:47:33;
  rebind 0 2020/11/29 07:50:22;
  expire 1 2020/11/30 00:51:23;
}
lease {
  interface "bge0";
  fixed-address <WANIP>.54;
  next-server <WANIP2>.1;
  option subnet-mask 255.255.252.0;
  option routers <WANIP2>.1;
  option domain-name-servers <DNS>.57,<DNS2>.215;
  option dhcp-lease-time 604800;
  option dhcp-message-type 5;
  option dhcp-server-identifier <DNS>.55;
  renew 0 2020/11/29 04:30:14;
  rebind 2 2020/12/1 19:30:14;
  expire 3 2020/12/2 16:30:14;
}


[Fright]

imho it looks more like rebooting of upstream switch\router