Mikrotik hAP3 AC3-RouterOS config with external LTE modem

[jaclaz]

Too many "wiki" in the url (sometimes in the past the whole stuff has been moved around causing any kind of bad links), use this (middle wiki removed)
https://wiki.mikrotik.com/Manual:Switch_Router

BUT you are mixing liberally contents of the wiki (essentially related to routerOS 6.x) with content of the help pages (essentially related to routerOs 7.x), just like you are using wireless on 7.x, something coming from 6.x works, some works worse, some doesn't work at all (anymore).

besides you will have to go through BOTH of these threads:

Using RouterOS to VLAN your network

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RouterOS bridge mysteries explained

This topic is a reaction to the countless cases of confusion regarding why the bridge “itself” must be listed among tagged or untagged ports of a VLAN in some cases, why the VLAN interfaces must be attached to the “bridge” rather than to its member ports etc. The fact that both “interface” and “port” have multiple meanings in the networking vernacular contributes to that confusion. This topic does not deal with the details of the “new” way of handling multiple VLANs on a single bridge; for that…