=====Mikrotik commands & Hints =====

==== To force primary band ====

  /interface lte at-chat lte1 input="AT*Cell=2,3,,3350,138"
  
Before;
  primary-band: B3@10Mhz earfcn: 1761
  ca-band: B7@20Mhz (earfcn: 3350Mhz, phy-cellid: 138)
                 rssi: -44dBm
                 rsrp: -69dBm
                 rsrq: -7.5dB
                 sinr: 23dB
                  cqi: 15

After;
  primary-band: B7@20Mhz earfcn: 3350
  ca-band: B3@20Mhz (earfcn: 1617Mhz, phy-cellid: 138)
                 rsrp: -62dBm
                 rsrq: -6.5dB
                 sinr: 35dB
                  cqi: 11

 
To check status
  interface lte cell-monitor lte1

https://wiki.mikrotik.com/wiki/Manual:Interface/LTE#APN_profiles
==== Bonding 2 LAN ====

Bonding means you must connect two devices and from this second device receive internet. Like: SXTR + hAP ac2

You must

  *     disable PoE on Ether2
  *     connect via mac address, enable romon.
  *     delete bridge port like ether1,ether2 and bridge itself
  *     create bonding
  *     Add IP + DHCP Server + NAT .... OR Passthrough
    
My experience:

  *Install routerOS on VM on my laptop
   *get temporary 24 hour license
  *enable romon on 4G device
  *connect to routerOS on vm, romon onto 4G devie, make changes as detailed above
  *bonding by round robin works best as it alternates packets

    
====Passthrough====
https://wiki.mikrotik.com/wiki/Manual:Interface/LTE#Passthrough_Example

To configure the Passthrough on ether1:

  [admin@MikroTik] > /interface lte apn add apn=apn1 passthrough-interface=ether1
  [admin@MikroTik] > /interface lte set lte1 apn-profiles=apn1

To configure the Passthrough on ether1 host 00:0C:42:03:06:AB:

  [admin@MikroTik] > /interface lte apn add apn=apn1 passthrough-interface=ether1 passthrough-mac=00:0C:42:03:06:AB
  [admin@MikroTik] > /interface lte set lte1 apn-profiles=apn1

To configure multiple APNs on ether1 and ether2:

  [admin@MikroTik] > /interface lte apn add apn=apn1 passthrough-interface=ether1
  [admin@MikroTik] > /interface lte apn add apn=apn2 passthrough-interface=ether2
  [admin@MikroTik] > /interface lte set lte1 apn-profiles=apn1,apn2

To configure multiple APNs with the same APN for different interfaces:

  [admin@MikroTik] > /interface lte apn add name=interface1 apn=apn1
  [admin@MikroTik] > /interface lte apn add name=interface2 apn=apn1 passthrough-interface=ether1
  [admin@MikroTik] > /interface lte set lte1 apn-profiles=interface1
  [admin@MikroTik] > /interface lte set lte2 apn-profiles=interface2