I have an old WRT1900AC V1 and I am considering flashing it to OpenWrt to be used as wireless AP plus switch in my living room. I hardly use WiFi so that aspect is primarily for guests or on the extremely rare occasion that I use my laptop from the couch. It would be very convenient to also use it as a GbE switch in that room for connecting game consoles, etc.
I have a managed switch at the junction of the house's CAT 5e wiring, which will be fed from a BPI-R3 primary router that will run a WireGuard VPN. That router is in the basement and I'm strongly considering not turning on its radios at all if I can make the WRT1900AC do what I want. But I'd rather not waste days attempting that if it's simply not going to work.
If anyone can answer a couple of preliminary questions to save me that time, I'd really appreciate it:
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What's the current status of the wireless driver for this device? I've read older posts about it being unsupported and problematic, and then a couple of more recent comments about some new activity and patches but no actual reports on how it works.
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Is it physically possible to set up this device so I'd have one VLAN with the 2.4GHz wireless and 2 LAN ports, and a second VLAN with the 5GHz wireless and the other 2 LAN ports? I may have a fundamental misconception about how the hardware works so I apologize if this is a really stupid question.
The goal of question 2 is to let me (or guests) choose to be behind the VPN or not based on which SSID or LAN port we connect to on the WRT1900AC (i.e. XBox -> no VPN, friend's phone -> no VPN, laptop -> VPN, etc). The VLANs would be tagged for traversing the upstream managed switch and being handled by the primary router.