I have a 4510L MiFi that will show I have 4G on the admin web page for Verizon. Up until the end of April 2012 I have quite good 4G reception then all of a sudden it was gone. I live in an "extended area" of the 4G coverage so I would usually experience an average download speed of 8 Mbps and 2-3 Mbps upload so not full speed but plenty good for me. I went through all the steps of getting several certified refurbished units and 3 different SIM cards. Also Verizon sent me an antenna (which has helped bringing in a better signal for the 3G) but has not helped solve the 4G mystery. I have to say that going from 4G back to 3G is not a good feeling! So if anyone has a possible remedy or understands ANYTHING at all about this I would like to hear from you.
I attached some images that may help in figuring this out.
Thank you in advance,
Colleen