networking - The locking clip/tab on my Ethernet cable's plug is broken. How can I fix it?

I have a 10 meter long Ethernet cable. One plug has the little locking clip missing, just like missing the part in red ellipse in the following picture.

How can I fix it? Is this something I should even attempt to fix myself, or is it better to replace the cable?

If you don't want to replace the cable or install a new jack, you have a few of options:

• Glue it into a coupler or a short extension like one of the following (with the coupler you will need another short run of cable on the other side):

  

• Repair it with a zip tie. Use this guide for instructions: http://www.instructables.com/id/Repair-a-Broken-Ethernet-Plug/

  

It's entirely possible to cut off the plug and install a new one, but you will need a crimping tool. It's about $15. The thing is, your local store will probably charge you more than $15 for a cable - even if you buy it online, it'll probably be close to that when you take shipping into account. Therefore, it's cost-effective in my opinion, even if you only need it occasionally (and those pieces tend to break somewhat frequently, in my experience).

Also, if you ever need to run large amounts of cable, it's much cheaper to buy it in bulk and cut it yourself.

EDIT: Don't forget to match the plug type to the wire type - stranded or solid (in your case, the wire is almost certainly stranded).

For a quick fix, I've successfully used a small piece of paper to wrap the 3 non-conductor sides of the socket and then insert the cable into the socket. Leave some paper extending outside the socket so you can prevent the plug from just pushing the paper into the socket. This hack can work for years, if there is not a lot of movement of the device or cable.

Otherwise, the only true fix is to cut-off and replace the plug.

Or, replace the cable if it is not a difficult routing issue. Cables are pretty cheap if you shop around online.

You can always cut the broken end and add a crimpless plug. Here is an example. They are more expensive than a crimped end, but perfect for an emergency. Different brands/models have different capabilities such as self cutting the wires.