Strange network transmit rate - believed to be software related

[snverhallen]

So I just got a new, N standard, gigabit, 2.4 GHz router (link). Got it all setup, works great except I noticed something strange. In 10.6.2 I get a transmit rate of 130 (option click airport). I thought it was because my hardware didn't support simultaneous 20 MHz / 40 MHz channel width to get the full 300 mbps. I then switched to Windows XP on the same Mac and was surprised to find that XP reported a constant transmit rate of 240 ~ 270 mbps.

So apparently my hardware is capable of theoretically achieving a transmit rate of 300 mbps (proven with XP) except Mac OS X doesn't support it. I do remember reading something about this somewhere. I can't really thing what else it would be.

Any suggestions would be appreciated,

snverhallen

 

[spinnerlys]

My Mac OS X AirPort Menubar icon shows a transmit rate of 270, but I doubt that this is actually the transfer rate, as it would be 33MB/s and I get 7MB/s at top speed anyway.

Do you use your wireless network for lots and lots of data transfer?

I use Mac OS X 10.6.2 with an AirPort Extreme Base Station btw..

 

[snverhallen]

My Mac OS X AirPort Menubar icon shows a transmit rate of 270, but I doubt that this is actually the transfer rate, as it would be 33MB/s and I get 7MB/s at top speed anyway.

Do you use your wireless network for lots and lots of data transfer?

I use Mac OS X 10.6.2 with an AirPort Extreme Base Station btw..

I don't necessarily use my network for lots of data transfer, mostly streaming of media between my Mac and PS3. But I just find it funny why I'm topping out at 130. Is your router or wireless access point 2.4 GHz or 5.0 GHz?

 

[spinnerlys]

5GHz and currently my transfer rate is 216, and now back to 270.


What kind of speeds do you get during transfers?

Activity Monitor > Network Activity or iStat Menus might be of help.

 

[snverhallen]

5GHz and currently my transfer rate is 216, and now back to 270.


What kind of speeds do you get during transfers?

Activity Monitor > Network Activity or iStat Menus might be of help.

Ahh, that's it. On the 5 GHz band it's known to work fine (to get the 300 mbps) it's just on the 2.4 GHz band using simultaneous 20 MHz / 40 MHz channel widths that Mac OS X is being weird.