@Bugs12 Judging from this log, it should be a problem with the proposal. Recommend you examine the log from the peer server Zscaler. If there is any detailed log about the phase or encryption that it...

@laurentiu907 laurentiu907 wrote @Clive_A here are the screenshots with the firmware versions - as requested. For the other request (the network diagram and the role of this router in this VPN...

@p3r3s p3r3s wrote @laurentiu907 First, I switched from OpenVPN to L2TP/IPSec (same problem). I've been using Wireguard since yesterday, and it's been working fine for the first 24 hours. Hardware...

@Anton320 Anton320 wrote @Clive_A The router does not respond at UPD port 1194 at all when the issue appears. I tried it with Ncat. VPN not operational: nc -v -u -z -w 3 192.168.0.1 1194 Ncat:...

@Anton320 Anton320 wrote @Clive_A The problem appeared spontaneous. It was not due to a system upgrade. It happens randomly since a week ago. Sometimes when a device is connected, sometimes when I...

@Adamcios The MAC address table should be readable from these nodes: dot1qTpFdbTable .1.3.6.1.2.1.17.7.1.2.2 dot1dBasePortTable .1.3.6.1.2.1.17.1.4 ifTable .1.3.6.1.2.1.2.2 Your SNMP should be able...