Connect the voltmeter to measure voltage at SO on the max
connect the CS line to 5v
The MISO pin on the max should be high impedance at this point.
Yes the prob is at room temp, next to the mega.Looking at the code from post #63 I noticed that you disable the we 5100 after you start it, but you dont do that for the pin from the sd card. Then you start mesuring the max values. Shouldn't youu disable the sd card pin first in order to use the SPI bus for the max ?
Starting SD..failStarting w5100..192.168.1.96Setup complete14.013.5014.0...