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Gigabit ethernet requires all 8 pins to connect. See the diagram below: You can buy a gigabit to USB adapter. Alternatively, the ethernet port can probably be replaced in the laptop by someone good at soldering. Check computer repair shops in your area and ask them if they can remove and replace it. Not all shops do soldering work.


2

You'll have to order an USB-to-serial adapter, that is, an active device, not a cable. USB, Ethernet, and serial ports use very very different protocols, also on the physical level (voltages, timings, other electrical characteristics), so you cannot just have "cables" between them. Your "female serial-to-ethernet cable" looks like a D-Sub-...


2

(1) Do I connect the Ethernet cable from the BT home hub to an uplink port? If your switch is old enough to have an uplink port – yes. (It's also probably old enough to drink.) Such a port used to have "crossover" wiring so that it could be connected to another switch or router without the need for a crossover cable. (Recall how the "receive&...


2

Per IEEE 802.3, the maximum length of a twisted-pair link is 100 m. 90 m of which are required to use solid-core cable, up to 10 m of stranded cable are allowed. 802.3 refers to ISO/IEC 11801 where the cable layout is defined in section 6.2 Layout (emphasis mine): The performance limits for balanced cabling channels are given in 6.4. These limits are ...


1

Ethernet link speed is determined by Autonegotiation: both sides advertise their speeds and capabilities and the best mutual mode is chosen. Accordingly, a NIC with 2.5G capability (2.5GBASE-T) and a switch port with 1G capability (1000BASE-T) link with 1 Gbit/s. Very likely, your Wi-Fi router only supports 1000BASE-T. The wireless speeds it supports are ...


1

There are many 300 Mbps routers but only offering that speed on Wi-Fi: most ethernet ports are 10/100 on cheap routers. There is no way to change it by software configuration: you could try to detect if there is a bottleneck inside that you can replace but probably won't be able if the router was not designed to work at faster speeds and you would need ...


1

When working between various Linux systems I've found the following script helpful - its easy to remember/copy paste, the one below is tailored to MacOS #!/bin/bash export DEFAULT_IF=$(route -n get default | grep interface | awk '{print $2}') ifconfig | awk -v D=$DEFAULT_IF 'BEGIN{I="";}/^[a-zA-Z0-9]/{I=substr($1,1,length($1)-1);};/inet /{printf(...


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