Hello @hicla,
Have you spoken with your supplier (they should be a Certified Peplink Engineer) about this, if you are unable to get them to help you resolve this, you may need to raise a support ticket with Peplink. Peplink may know of a local specialist in your area they can put you in touch with.
Before Contacting Peplink Support, have you:
- Verified the list of modems you are using against the compatible list of modems
https://www.peplink.com/technology/4g3g-modem-support - Spoken with your local Peplink Certified Enginner (ask Peplink if needed for a Cellular specalist in your area)
https://www.peplink.com/peplink-certified-partners/ - Worked the the advice from @jmjones & @MartinLangmaid & @mldowling above
- Download the Diagnostic logs from the router
Obtaining a Diagnostic Report from a Peplink Balance or Pepwave MAX Device
If you have gone through all of these and still having challenges, then raise a support ticket at https://contact.peplink.com/secure/create-support-ticket.html
Happy to Help,
Marcus 