I have a crappy RV042 in the UK connecting to a customers Peplink Firewall in HongKong with a S2S VPN. Since the weekend they have been complaining that the vpn has been going up/down and they have had to reboot their peplink device 3 times.
On our side i am seeing this:
ERROR: asynchronous network error report on eth1 for message to xxx.xxx.xxx.xxx port 500, complainant xxx.xxx.xxx.xxx: Connection refused [errno 146, origin ICMP type 3 code 3 (not authenticated)]
I have searched for this error, but nothing concise is coming up. Is it possible that there is something in the way blocking port 500 hence vpn not completing? Our side is connected directly to the internet, no NAT, and it behind a router we own and manage (all our infrastructure)
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