Fr3dr1k

Yea, If it's not to much overlapp then you are good. If the router is just above your PC, why not just use a wired ethernet connection?

2.4GHz can deliver upto 300mbps bitrate. So unless you are in a very 2.4GHz dense area, you won't feel any difference except as @blue4130 mentions, 5GHz can't go through walls as easily

There are so many problems with this. You need an expensive and beefy 2.4GHz antenna to cover 200m, both ways when the other end is using a standard antenna. You need a good VPN, wich costs money You may be blaklisted as Theguruofnothing informed It may be illegal as many has pointed out What you schould do is this, in order: Call your ISP and complain, they will most likely help you figure out the problem. Buy a new router, you mentioned it was from 2013 so an upgrade is due. You'll get decent routers for under $100 that will be alot better than an 2013 one. Turn on QoS if the router supports it. The world of the Internet is based on "Best effort" and "First come first serve", so any programs hogging the downlink will slow everything else down. QoS is a way to try and controll the behavior of non important programs by prioritizing bandwith.

Not familiar with the Ubiquity gear and how it operates. But to me it sounds like you created a separate LAN for the Mesh Network. And this is the problem. Most network enabled gadgets for home use is limited to one LAN, since one LAN is a "Broadcast domain" meaning, that's how you can discover the network devices automatically. Which means, if you have another subnet on your Ubiquity Mesh network (ie. Network from ISP router is 192.168.1.0/24 and Ubiquity side is 10.0.0.0/24) you can't connect to the home audio without manually adding the IP addresses. So check if that is the problem, and would recomend to just set it to be a pure AP, so everything is on the same network.

Yeah you can. There is two ways. The best way, but you gotta add hardware. Buy a QOS router that chooses what route to use based on the application. But as said, this costs $$$. The worst way, and the hardest but free way is to manually configure the routing table of your computer. This can be done through the "route" command in cmd. Would recomend to have the default gateway set to your 4G modem, and then add static routes through your wired connection for your games. The absolute easiest way is to just upgrade your home network, and decrease your 4G plan if economics is an issue.

lo stands for loopback, so in short: itself. For the main topic. The picture is not all devices connected to the router. It's the routers routing table (Where to send what). Based on your picture, it says that standard gateway is at interface eth0 and that the network 172.103.252.0/26 is at eth0. And a loopback entry, and then the switch0 entry wich states that 192.168.1.0/24 network is connected to interface switch0. And considering you have 4 ports in use, and of the 4 routes there is only 2 that indicates a network means that you are missing one line. So, since everything connected to the edge router needs a network (since it's a router not a switch) this means that there are only routes for two devices. Considering that your PC has internet, the route for the Dlink is missing. What you need to do is to create one LAN for the Dlink, and one LAN between your computer and the router and the LAN between the modem and the edge. And set the routing table for it on the Edge Router for it to work. So: PC network: 192.168.1.0/24 DLink network: 192.168.0.0/24 Modem network: 172.103.252.0/26 And when it's right, your screenshot should show 5 lines instead of 4, one for each device + loopback and standard gateway. EDIT: Brainfart! Is the Switch0 interface a virtual switch? Then double check that the physical interface for Port 3 is included in the switch0. If not, double check that DHCP is disabled on the Dlink and plug the ethernet cable into a LAN port and not the WAN port, because then the for the DLINK will be behind a NAT firewall. Damn, i overcomplicated that way to much...

The WiFi as WAN is the frankenstein solution. Just get a travel router, and take the ethernet from the travelrouter to the old router. A few steps that has to be done for it to work though. 1. Get a travel router with a LAN port (Not all travel routers have those) 2. Plug the ethernet into the LAN port of both routers (or disable WAN on the old router, this usualy turns the WAN port into a LAN port) 3. Turn off DHCP on the old router

Do you need to be able to use the DNS outside your LAN?

There are two sollutions using WiFi signals: 1. Build a mast on top of your buildings giving LOS. 2. Use a relay station with LOS to both buildings. Or just use VPN.

No, not really. The mode for the cable does not reffer to the number frequency bands you can use in a single fibre connection. It has more to do with how the light propagates in the fibre, where one mode is one pathway. Where assingle mode, all light is sent in one direction, and no reflections that causes dispersion and attenuation. Hence why singlemode can carry a higher bitrate over longer distances. In stepped mutlimode index the light are allowed to take alot of diffrent paths, meaning some of the light will be absorbed in the cladding due to a sharp angle (attenuation) and the light that do reflect will arrive at differnt times because of different angles causing dispursion wich again limits the bitrate. And in graded multimode, they use a cheper method than singlemode to decrease dispersion and attenuation. In simpler terms:

You still need a switch for connecting more than 2 clients... Also APIPA isn't a good way of assigning IPs, especially if you wanna have a server on the network. And IP conflicts is easy to have with APIPA since the clients does not communicate about which IP to set within the class B subnet that APIPA uses.

You don't need a router to direct traffic on a LAN, that is all layer 2 and is handeled by the switch. The "hard way" is to just manualy sett all clients to the same IP range. eg 10.0.0.[1-254] with subnet 255.255.255.0 with the server on .1 or .254 and plug em all to a switch. You could also use VM to set up a DHCP server so they can just plug and play instead of manually setting up the IPs. But unless it's alot of people attending it will be more of a hassel than just telling people to set their IPs

Change your WEP key, then all who schouldn't have connection to your WLAN will lose it, and just unplugg LAN connections. Or buy a new router

I think you got your units mixed up. Network speeds are usualy told by using megabits (Mb) and not megabytes (MB), also a MiB is 1024 bytes and a MB is 1000 bytes, so 12,8MiB/s is not 1,6MB/s: convertion, although many uses just MB for MiB... And you can't get the full 100mbps (12.5MB/s) anyways. but to maximize your upload speed: Disconnect any other device than the on you want to upload from, and stop any programs on that device that may use any network at all.

Because there is no internet if you connect two PCs together, you'll just have the LAN between those two. Just set the two computers up on the same subnet through the device properties and use windows filesharing.