On 12/27/2015 6:05 PM, Norm X wrote:
On 2015-12-27 5:36 PM, Norm X wrote:
Hi,

This is Xposted.

After upgrading to cat6 Ethernet cable and Gigabit Ethernet switch, I am
still having problems with an Ethernet connection that craps out at 1.0
Gbps. Also at the same time, the filesystem connection to a 64 GB
microSD (xSDHC) also craps out. The microSD is mounted in a an SDHC
adapter. From my experience, I am inclined always to first suspect
hardware fault. So as is my usual technique, I cleaned the contact of
the microSD and its adapter first by rubbing with a pink pencil eraser
and then with 70% isopropyl alcohol on a Qtip and then a dry Qtip.
Neither the pink eraser nor the Qtip showed a grey stain as is common
with oxidation. I also tried to clean the Ethernet connector

Since I started writing this, 1.0 Gbps connection has crapped out once
but now it is re-established. The file system connection to the 64 GB
microSD has held steady.

Comments?

Thanks.

Now both are crapped out. Good thing I also have WiFi.

Are you sure your cables are wired correctly?
The connection from twisted pairs to the plug is counter-intuitive.
There's also more than one color standard.
Many of the cables I had failed to work at 1Gbps, but the system
did fallback to 100Mbps.
One turned out to be a swizzle cable. Worked fine with the autoswizzle
in modern ethernet interfaces, but failed at 1Gbps.