Thank you for your efforts. I was very happy to find a library that works on Teensy 4.1 however I am unable to compile the WebServer example. I had download the VLP library and also copied boards.txt but this did not help. I also tried changing Ethernet.h to NativeEthernet.h but his did not help either.

Here is the error:

C:\Program Files (x86)\Arduino\hardware\teensy\avr\cores\teensy4/Stream.h:68:6: error: 'int Stream::timedRead()' is private

int timedRead();

 ^ 

C:\Users\TTC\Documents\Arduino\libraries\EthernetWebServer-master\src\Ethernet_HTTPClient\Ethernet_HttpClient.cpp:642:13: error: within this context

 int c = timedRead(); ^ 

In file included from C:\Program Files (x86)\Arduino\hardware\teensy\avr\cores\teensy4/HardwareSerial.h:106:0,

 from C:\Program Files (x86)\Arduino\hardware\teensy\avr\cores\teensy4/WProgram.h:46, from C:\Users\TTC\AppData\Local\Temp\arduino_build_394779/pch/Arduino.h:6, from C:\Users\TTC\Documents\Arduino\libraries\EthernetWebServer-master\src/Ethernet_HTTPClient/Ethernet_HttpClient.h:43, from C:\Users\TTC\Documents\Arduino\libraries\EthernetWebServer-master\src\Ethernet_HTTPClient\Ethernet_HttpClient.cpp:44: 

C:\Program Files (x86)\Arduino\hardware\teensy\avr\cores\teensy4/Stream.h:68:6: error: 'int Stream::timedRead()' is private

int timedRead();

 ^ 

C:\Users\TTC\Documents\Arduino\libraries\EthernetWebServer-master\src\Ethernet_HTTPClient\Ethernet_HttpClient.cpp:642:23: error: within this context

 int c = timedRead(); ^ 

Multiple libraries were found for "Ethernet.h"
Used: C:\Program Files (x86)\Arduino\libraries\Ethernet
Not used: C:\Program Files (x86)\Arduino\hardware\teensy\avr\libraries\Ethernet-master
Error compiling for board Teensy 4.1.