Your modem isn't in TP-LINK's 3G compatibility list, I suggest you can refer the list to buy a compatible modem:D www.tp-link.com/en/support/3g-comp-list/?model=TL-MR3220&location=1372

abidifethi wrote Yes like I've said before: I've fllowed all the steps, it seems like there's no response from MR3020, cause it say waiting for response from 192.168.0.254, the LAN connection is ok...

Hi Eric If the modem isn't in the 3G compatibility list of your region, this means TP-LINK hasn't tested so nobody knows whether E366 is compatible or not. Maybe you can have a try before you buy a...

abidifethi wrote My question is clear : My problem is in upgrading the MR3020 which does not accept any update via cable or WIFI not about the risk of upgrading. Do you follow the upgrading guide...

of course there will be no problem when upgrading firmware from 120817 to the latest one 140610. you can use a cable to connect your TL-MR3020 and your PC, then have a try. usually upgrading firmware...

Hello Stan You can find this information in: http://www.tp-link.com/en/products/details/?categoryid=218&model=TL-MR3420 I have listed the information I found below: Compatible with...