-----Original Message----- From: Karl Auer via Public <public@talk.mikrotik.com.au> Sent: Wednesday, 10 December 2025 2:45 PM To: MikroTik Public <public@talk.mikrotik.com.au> Cc: Karl Auer <kauer@nullarbor.com.au> Subject: [MT-AU Public] Bandwidth oddity/problem
We have a 100% MikroTik network. When we run a speedtest while directly connected (Ethernet) to our gateway router, which is connected to the NBN on an FTTP service, we see expected results: Over 250 down, over 100 up.
Three 10G fibre hops, a switch, a 1GB fibre hop and another switch later,
numbers are very slightly lower. All good.
BUT: Connected via 5GHz wifi to an access point attached to the first of
abovementioned switches, we get the same download speeds, but only around 35 up. With essentially no other traffic on the wifi, the test device (a laptop) no more than three metres from the access point, and with no intervening objects.
My thinking is this has to be a limitation in the test device's wifi or a
the access point (MikroTik CAP aX). Not sure how to prove it one way or
Good morning! Watch out for CPU load caused by the test running! (look at cpu profile tool while you're observing unusually low results to make sure you're not pegging a cpu at 100%) Cheers! Mike. those the limitation in the other.
We get the same result on three different laptops, but they are all similar vintage and same manufacturer (Lenovo).
Is there any way this could be a *configuration* issue? It's very consistent. Am I ignorant of a known asymmetry in 5GHz wireless speeds?
Hoping for ideas, K.
-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~ Karl Auer (kauer@nullarbor.com.au, he/him) work +61 2 64957435 http://www.nullarbor.com.au mobile +61 428 957160
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