@MartinLangmaid and several other partners here in the form are experienced in international support and supporting the Maritime industry. Suggest sending them a PM (private message) if your Certified Peplink Partner (who we hope is your supplier) is unable to help. I’m one of those that do this regularly, though, as, like many partners, it comes at a fee, you are welcome to PM us also.
So here are some questions that may help you:
- Is your system managed via InControl2 (best for VLANs across multiple devices)?
- With your VLANs, on the router’s LAN port and the connecting port of the switch, are these both on TRUNK?
- Have you got all of the VLANs in both the router and the switch (this is easiest done from InControl2)?
- What ports have you programmed on the switch to ACCESS mode and what VLANs are assigned?
You may not be able to post configuration files here, though you can post images and screen captures.
Happy to Help,
PS: Support here in the forum is complimentry, we all do our best to assist you here where we can