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GordonGekko999

macrumors 6502
Original poster
Mar 6, 2009
412
69
Is there an alternative to the Apple Thunderbolt to Gigabit Ethernet Adapter that does not increase the CPU load by more than 10 percent over the Thunderbolt adapter? Perhaps one that does not need a driver, here is the issue, on my 2015 Macbook Pro, High Sierra, the Thunderbolt to Ethernet Adapter burned the covering off the main wire, exposing the frayed wire, it continued to work but any time I moved the Macbook, the internet connection would be lost and I usually had to take out the lightning part and reinsert it again, wait a few seconds for the connection to restablish.

I bought a new adapter, it has cut down the amount of times I lose the connection, but it still does happen because the weight of the ethernet line sometimes causes the thunderbolt port to lose contact with the adapter, it sort of shifts out of position.

So I would need perhaps a larger or more stable adapter, maybe the USB port provides a better seal, in addition you can still feel the heat on the wire, this new one might eventually wear away as well, hoping maybe it is slightly cooler with High Sierra over Yosemite but I doubt it.
 
Last edited:

jerryk

Contributor
Nov 3, 2011
6,747
3,664
SF Bay Area
Lightning ports? 2015 15" MBP does not have those.

Did you mean Thunderbolt 2 ports? If so, I never used those. I used a USB 3 Ethernet adapter and it worked fine.
 
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GordonGekko999

macrumors 6502
Original poster
Mar 6, 2009
412
69
Lightning ports? 2015 15" MBP does not have those.

Did you mean Thunderbolt 2 ports? If so, I never used those. I used a USB 3 Ethernet adapter and it worked fine.

Sorry, I fixed that error, can you reply with the usb 3 one you use?
 
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Howard2k

macrumors 68040
Mar 10, 2016
3,010
2,230
I have a USB3 / Gig E adaptor. Works great. It’s a cheap mass produced unit, mine was a Best Buy brand I think. Insignia NS-PU98635.

I also had a Best Buy (Insignia) USB to 10/100 and it was totally crap. The NS-PU98635 with whatever brand it may have, seems to be good value.
 
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Fishrrman

macrumors Core
Feb 20, 2009
21,698
7,905
Try USB3-to-ethernet.
Reason: The USBa style port is more "robust", less likely to have the connector loosen up as with the thunderbolt port.
 
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