Sorry, I forgot to confirm that the IP of each remote host is set to that of the remote ISP modem's IP I have rather minimal experience with wireshark, but do believe that you are correct that this...

@Clive_A Hello and thank you for your reply For the advanced settings, One router had more fields set than the other, so I set them to match, with the exception of the Initiator / Responder option...

@MR.S Thank you for your reply I tried setting the Local and Remote IDs to 'Name' and then assigned GedraGrove1 & CedarGrove2 (swapping local and remote names on the second router), but it still...

Hello I have two ER605 v2.0, both running firmware 2.2.2 Build 20231017 Rel.68869 which are each behind ISP routers. The two ISP routers are of different models, but each has UDP ports 500 and 4500...