Insanely Slow LAN Speeds

[Calibretto]

Do you have another Apple device? Try two and see if the HTPC is the problem.

Yes, I tried it on my wife's older MacBook Pro:

Transferring the same file from MacBook to HTPC directly from the same Asus router over wireless (MacBook wireless, HTPC wired):

Way to freaking slow. Said about "13 minutes remaining" compared to the two minutes it took my MacBook.

Here's where it's interesting..

Transferring the same file from MacBook to HTPC directly from the same Asus router over ethernet:

92.3Mbps, compared to the 44Mbps that my MacBook got. Could it be the Thunderbolt adapter causing the bottleneck? It seems unlikely.

 

[Cromewell]

Apparently the thunderbolt nic sometimes doesn't automatically switch to gigabit on certain routers or perhaps it's remembering the 10/100 netgear 7550. Can you manually set it's link speed?

 

[Calibretto]

Can you manually set it's link speed?

There's this menu on my Mac if that's what you mean:

 

[Cromewell]

That is what I mean. Flip it to 1000baseT and try again.

 

[Calibretto]

That is what I mean. Flip it to 1000baseT and try again.

Switching it to 1000baseT disconnected me and said an ethernet cable wasn't plugged in. I restarted, but still no luck. Switching it back to the original got me connected again.

EDIT: Seems like a lot of Mac users are having the same problem when switching to 1000baseT, dating all the way back to 2009 without a fix. YIKES https://discussions.apple.com/thread/2170974?start=0&tstart=0

 

[Geoff]

Switching it to 1000baseT disconnected me and said an ethernet cable wasn't plugged in. I restarted, but still no luck. Switching it back to the original got me connected again.

EDIT: Seems like a lot of Mac users are having the same problem when switching to 1000baseT, dating all the way back to 2009 without a fix. YIKES https://discussions.apple.com/thread/2170974?start=0&tstart=0

That thread seems to be related to the internal NIC's, and not specifically to Thunderbolt adapters. I manage thousands of Mac's from MacBooks, MacBook Pros, Mac Minis, iMacs, etc. and they all image fine on a gigabit connection. However I have never used the Thunderbolt adapters.

 

[Cromewell]

Switching it to 1000baseT disconnected me and said an ethernet cable wasn't plugged in. I restarted, but still no luck. Switching it back to the original got me connected again.

EDIT: Seems like a lot of Mac users are having the same problem when switching to 1000baseT, dating all the way back to 2009 without a fix. YIKES https://discussions.apple.com/thread/2170974?start=0&tstart=0

Sounds like this might be the issue http://support.apple.com/kb/TA24084

The hardware is different but the root cause might be the same, the symptoms certainly are...although it's more than new enough that it shouldn't be a problem.

 

[Calibretto]

Hmm, interesting. I guess it's not a huge deal in the end, but would be to nice to have gigabit speeds. Thanks for your help!