A bad socket or a bad cord.
How to fix a broken floor lamp base.
Pull the socket switch up out of the shell base to expose enough of the switch to reveal.
Then the thickness of the base would help support the pipe.
I got a table lamp kind thing but this is close to 7 feet and same as you i broke the bottom plaster too.
Cut them off and strip away 1 2 in.
Run it in the lamp and then through the socket.
Do not lose any of the pieces.
When you connect the new socket don t reuse the bare ends of the wires.
You can begin repairing a floor lamp by disassembling the lamp.
A tall floor lamp provides a lot of leverage that could break your pipe off.
The base could be designed so that the pipe fits tightly through the base and screws through the flange last.
Some of the tiny strands of wire are probably broken.
If you have a lamp with a loose socket that causes the lamp to flicker to be difficult to turn on or to just flat out refuse to light you can replace the socket and give the lamp a new life.
Gently lean the lamp downward and rest the top of the floor lamp the area near the bulb down on the pillow.
This will eliminate the possibility of replacing one part only to have the problem be the part that was not replaced.
How to repair a faulty lamp.
Get the new wires.
To take it apart start by taking the screws off the foundation.
The shade may be left in place if it is a solid.
How to repair a faulty lamp.
Or cut it off and splice it back on with wire nuts.
Of insulation with a wire stripper.
A majority of floor lamps are comprised of threaded pipes joined by screws.
Floor lamps that get moved frequently last only a few years before their plastic and the cement inside crumbles.
Get the new socket the one with.
Since both of these issues involve taking apart the lamp it is wise to replace both items.
I am thinking of getting a round plate exercise weights 15 or 20 pounder that whose circumference is not bigger than the lamp base and fix it with not and bolt same as how the plaster was.
If the hole in the middle of the plate is big then put a big washer and fix the nut.
Having to shell out 35 60 every few years for a floor lamp is getting pretty tiring.
When a floor lamp stops working there are usually two causes for the problem.