RED SITE-2-SITE down

RED Server: Sophos UTM 9.700-5

RED Client: XG v18 EAP1

Mode: Non-legacy

Running fine for a long time, first yesterday the tunnel was disconnected, Internetflow at UTM and XG site was working perfect.

It happened yesterday 18:50, but I first looked into this, this morning, so connection never came online by itself.

Tried this:

- Disabled RED tunnel at XG, and enabled afterwards = no effect.

- Disabled RED tunnel at UTM, and enabled afterwards = no effect.

- Restarted Xg, tunnel came up, and it's been fine since!

 

Logs:

 

UTM:

2019:10:28-18:50:54 mail-2 red_server[24353]: xxxxxxxxxxxxxxx: No ping for 30 seconds, exiting.
2019:10:28-18:50:54 mail-2 red_server[24353]: id="4202" severity="info" sys="System" sub="RED" name="RED Tunnel Down" red_id="xxxxxxxxxxxxxxxxxxx" forced="0"
2019:10:28-18:50:54 mail-2 red_server[24353]: xxxxxxxxxxxxxxxxxxxxx is disconnected.
2019:10:28-18:50:54 mail-2 red_server[19387]: SELF: (Re-)loading device configurations
2019:10:28-18:50:57 mail-2 red2ctl[8173]: Missing keepalive from reds3:0, disabling peer xxx.xxx.xxx.xxx

XG:
Mon Oct 28 18:16:37 2019 REDD INFO: Red devices: Connected: 1 Disconnected 0 Enabled: 1 Disabled: 0
Mon Oct 28 18:21:38 2019 REDD INFO: Red devices: Connected: 1 Disconnected 0 Enabled: 1 Disabled: 0
Mon Oct 28 18:26:39 2019 REDD INFO: Red devices: Connected: 1 Disconnected 0 Enabled: 1 Disabled: 0
Mon Oct 28 18:31:40 2019 REDD INFO: Red devices: Connected: 1 Disconnected 0 Enabled: 1 Disabled: 0
Mon Oct 28 18:36:41 2019 REDD INFO: Red devices: Connected: 1 Disconnected 0 Enabled: 1 Disabled: 0
Mon Oct 28 18:41:42 2019 REDD INFO: Red devices: Connected: 1 Disconnected 0 Enabled: 1 Disabled: 0
Reading REDv2 key from STDIN:
Mon Oct 28 18:46:43 2019 REDD INFO: Red devices: Connected: 1 Disconnected 0 Enabled: 1 Disabled: 0
Mon Oct 28 18:51:44 2019 REDD INFO: Red devices: Connected: 0 Disconnected 1 Enabled: 1 Disabled: 0
Mon Oct 28 18:56:45 2019 REDD INFO: Red devices: Connected: 0 Disconnected 1 Enabled: 1 Disabled: 0
Mon Oct 28 19:01:46 2019 REDD INFO: Red devices: Connected: 0 Disconnected 1 Enabled: 1 Disabled: 0
Mon Oct 28 19:06:47 2019 REDD INFO: Red devices: Connected: 0 Disconnected 1 Enabled: 1 Disabled: 0

?!?