Hi guys,
Due to flash inconsistency/errors after a power surge issue, my router C800 started acting very strange. Having spent several weeks trying to bring life back into it through formats and the whole lot, I decided to replace it completely. I managed to find the same exact model and proceeded to copy a known good config from the old router (pre-power surge) to the new replacement one.
Almost everything works as it should except for SSH access and NAT rules put in place to allow me to access a VPN server behind the firewall. When comparing the configs side by side, I noticed that the certificate details are missing on the new replacement router. Could this be the reason why I am unable to SSH into the replacement router or access my VPN server behind it?