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[Bug 641558] Very slow transmission rate (1Mbps) with Ralink RT2500 802.11g miniPCI Wireless adapter (MSI S271 notebook)
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Wed, 6 Oct 2010 10:13:02 +0000
  • Message-id: <20101006101303.0DFC824551D@xxxxxxxxxxxxxxxxxxxxxx>

https://bugzilla.novell.com/show_bug.cgi?id=641558

https://bugzilla.novell.com/show_bug.cgi?id=641558#c10


--- Comment #10 from Vadim Plessky <v.plessky@xxxxxxxxx> 2010-10-06 10:13:01
UTC ---
Created an attachment (id=393275)
--> (http://bugzilla.novell.com/attachment.cgi?id=393275)
Connection with Ralink RT2500 wireless client (OpenSUSE 11.3)


Connection with Ralink RT2500 wireless client (OpenSUSE 11.3)
- as it's seen on DD-Wrt router (Access Point)

Effective Rate - as shown on DD-Wrt Wireless Status page - is 2Mbps, sometimes
going down to 1Mbps.
At teh same time Connection Information shown by NetworkManager is 48Mbit,
sometimes going up to 54Mbit.
Pls also note Signal Quality at 60%, signal -44, noise -94, SNR 50.
This is very strong, excellent signal!

It means there is significant inconsistency between "connection speed" shown by
DD-Wrt router (which is usually accurate on its data) and NetworkManager.
Weird...

BTW: as average download speed from OpenSUSE depository (downloading all
updates recommended by YAST) is about 50KB-70KB/sec., and DD-Wrt Bandwidth
Monitor shows max. transfer speed on Wireless (wl0) interface ~ 600Kbps, I
think estimate of 2Mbps connection speed between AP and Wireless client is
reasonable.

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