While we configure MAX HD2 in KSA, we used two network SIM cards (STC & Mobily).
STC SIM was automatically established the network/internet but Mobily was NOT!
Problem occur due to APN not defined automatically in MAX HD2 for mobily SIM card.
After we set Mobily SIM APN “web2” (Image Attached) it start to work fine.
Note: We used Mobily 4G Post-Paid connection but this APN is for Prepaid.
If peplink tech fixed this in next firmware update would be useful to us.