Upload and download graphs seem to be reversed

Started by Nicolaj H

Nicolaj H

Upload and download graphs seem to be reversed 05 February 2025, 20:02

My NetWorx graph displays the correct Mbit numbers for download and upload traffic, but for some reason the download graph shows upload, and upload graph shows download.
Basically the whole graph is correct, but it looks like upload and download have been swapped.

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Ann

Re: Upload and download graphs seem to be reversed 05 February 2025, 20:05

Admin
Registered: 11 years ago
Posts: 1 004

This behaviour can occur if you are monitoring your router but selected an incorrect interface.

For example, if your router has multiple interfaces (one facing the WAN and others facing the LAN), and you are monitoring an interface facing the LAN, the readings may appear reversed. This is because, from the router perspective, it is sending data when your PC is receiving it: i.e. what is upload traffic for the router, is download traffic for your PC.

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Nicolaj H

Upload and download graphs seem to be reversed - Solved 05 February 2025, 20:22

That was absolutely it, I did not even consider it.

By mistake, I had set it to monitor the LAN side through SNMP. It made perfect sense when you said "from the router perspective, it is
sending data". I changed it to WAN and everything is fine now.

Thanks for the assistance.

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