Reddit reviews Ethernet Extender Kit Tupavco TEX-100 Over Phone Line or CAT5/CAT6 Cable Range up to 7000ft (Pair of 2pc) LAN Network Extension over Twisted Copper Wire or RJ45 -VDSL Broadband Repeater Booster Bridge
We found 6 Reddit comments about Ethernet Extender Kit Tupavco TEX-100 Over Phone Line or CAT5/CAT6 Cable Range up to 7000ft (Pair of 2pc) LAN Network Extension over Twisted Copper Wire or RJ45 -VDSL Broadband Repeater Booster Bridge. Here are the top ones, ranked by their Reddit score.
Ethernet Extender kit improves network cable range limit of 328ft (100m) up to 7000ft over the phone line or existing LAN network cable using only 2-wire pair in phone or ethernet cableLAN Extenders connects remote located devices such as PC, computer, server hub, VoIP phone, IP Camera, modem, router to the main ethernet/internet data sourcePlug-And-Play Ethernet Repeater is out-of-the-box ready in most cases, it is easy to set up, no driver or software installation neededLED indicators for monitoring the status and DIP switch selectable 30a/17a profile, SNR margin, data rate, link activityCost-effective VDSL Extenders boost the length of broadband signal using only 2 twisted copper wires in CAT6 CAT5 RJ45 network or in RJ11 phone cable to separate buildings on remote locations by using existing cable infrastructure
But they will run it to the road for free? Do you have line of sight from the house to the road? A pair of wifi bridges and two patch or parabolic antennae will get you a 100mbps link easy peasy. A small hut or enclosure with power by the road to hold the cable modem, router, and power injector and you are in business.
I set up such a system for my parents to relay their internet connection half a mile (they had a hill in the way too so a middle station was needed). Holds ~50mbit easy (due to the middle relay) and has lasted over ten years now with the exception of lightning strikes occasionally taking out radios. Only cost a couple hundred bucks all in.
If you don't live in a lightning prone area and don't mind running your own line a spool of direct burial cat 5 for $100 with $300 Ethernet over vdsl2 adaptors will more than do the job.
You can pm if you have questions.
VDSL (aka extended reach ethernet) would be the most robust as you don't have midspan unit. I've had great luck with the startech units, these look like carbon copies of those units for $100 less--
https://www.amazon.com/Tupavco-Ethernet-Extender-Kit-Repeater-VDSL/dp/B01BOD8C9W/
Otherwise, PoE powered switch/repeater midspan sounds like the ticket. Something like this: https://www.amazon.com/Extender-Gigabit-IEEE802-3af-Security-Splitter/dp/B07FMNHYP8
And an injector:
https://www.amazon.com/TP-LINK-TL-PoE150S-Injector-Adapter-Compliant/dp/B001PS9E5I
Having something that needs an outlet to plug into halfway just feels half baked. 398 feet I'd roll the dice on forcing 10/100 first to see if it works. I've had gigabit work over longer.
HEY GUYS I FIGURED IT OUT. Here is where your confusion lies:
That RJ45 plug labeled DSL is NOT ETHERNET. It uses the same kind of plug and wire as an ethernet cable but it is carrying a signal similar to any RJ11 phone line. You cannot plug that cable coming from the comms room into an ethernet port, because it's VSDL, not ethernet. Meaning you cannot plug that into a pfsense box to route it. You need to attach a VSDL modem in between them, or MAYBE find and install a VSDL modem in your pfsense box that freebsd supports.
See for example this device: https://www.amazon.com/dp/B01BOD8C9W/
They have the same RJ45 jack for the modem side and the ethernet side, but completely different kinds of signals go over the two cables. The boxes act as translators from one to the other, so you can have a very long run of CAT5 that carries VSDL signals between two ethernet network connections.
The limit of Ethernet is 100m (about 330ft). You need an Ethernet extender. You can buy some online that use VDSL2 to bridge longer distances like that.
First result on Amazon:
https://www.amazon.com/dp/B01BOD8C9W/ref=cm_sw_r_cp_apa_JjSNBbCPRTYY9
Do you at least have a pair of phone wires between the buildings? Hard-wire will be more reliable than wireless any day. I've used this with great success: https://www.amazon.com/Ethernet-Extender-Kit-TUPEX-100-Broadband/dp/B01BOD8C9W or same thing:
https://www.amazon.com/StarTech-com-VDSL2-Ethernet-Extender-Single/dp/B002CLKFTG
If you have 4 wires in the phone line you can wire it for 100Mbps. If it's only a single pair you can do it using VDSL modems. You can only use 1 pair for each pair of wires though, so if all of your jacks are tapped together you would only be able to use a single pair of modems.
Here's a couple I found:
https://www.amazon.com/Tupavco-Ethernet-Extender-Kit-Repeater-VDSL/dp/B01BOD8C9W
https://www.amazon.com/StarTech-com-110VDSLEXT-Ethernet-Extender-Single/dp/B002CLKFTG
If you have Coax available in your house, MoCa is a better route. Much higher speeds.
Powerline ethernet could work too, but I haven't experienced great results with it myself.
Edit: My phone guy told me about some of these that have gigabit and POE over a single pair of copper: https://www.transition.com/products/media-converters/eo2pse4052-111-eo2pd4052-111/