I bulit a 2.2HW wersion, and uploaded the 2.1.3 Fw. I thought it works well, but today I saw, the name of the day is still Wed. I checked in the browser, and I was suprised, because the seconds are going up normally, and 3-5 seconds later jumping back 3-4 seconds.
Just to make sure I understand: did you build the circuit yourself, or did you buy a DIY kit from us? The part we used is 24AA02E48 — a small SOT23-5 part. We call it the MAC address chip, because it has pre-flashed globally unique MAC address. But you are right that it is an EEPROM.
If removing the EEPROM works, you can just leave it off. The only purpose of this EEPROM is to provide a real MAC address. The firmware is designed such that if this chip doesn’t exist, it will use software defined MAC.