Hi all
Having upgrade to fibre recently, I've started to experience a weird problem
with the speeds I'm getting. More details below but does anyone recognise
the following issue? For some reason, speeds of 800+Mbps suddenly drop to
around 90Mbps on certain machines only. I have no managed switches so why
it should suddenly "throttle down" is beyond me. When it does throttle
down, I've proved it doesn't affect every machine on the network - only
those in a certain room.
I have found a solution - to manually change the cabling such that it
bypasses a couple of switches - but I maintain - I can still get the
800+Mbps even using the switches that I later bypass to return the
connection to its correct level. So, to summarise, it's 800Mbps, drops to
~90Mbps, change ethernet cable to bypass a couple of switches, speed rises
to 800 again, put cabling back to its original and still get 800.
Here's a bit more detail: My study is in a converted garage at the rear of
the property. All machines in the house (separate from the garage) always
maintain 800Mbps. When my main machine (located in the study) slows to
90Mbps (and other machines follow suit), I bypass any other switches in the
study and connect it directly to the ethernet cable feeding the study from
the house (where the router is located). In so doing - bingo - I'm back to
800Mbps. I then put the cabling back to the way it was prior to the drop
in speed and can still achieve the 800.
So somewhere, it (one of the switches by the looks because it's not only one
machine that's affected) is going into some sort of "mode" where it
throttles bandwidth. But I maintain none of these switches are managed so
why would this be happening?
Yours tearing my hair out
Rob
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