These instructions will help you choose the correct folder. If the router contains a Gobi cellular module then you must download the zip file in the appropriate Gobi folder for your model. To determine if the WR41\44 contains Gobi, please check the part number on the approval label on the underside of the router: e.g. PN:WR44-U5S1-WE1-SW This number is of the format AAAA-B1B2-CDD-EE Check the value of B1, if B1 is set to “U5” (as it is in the example WR44-U5S1-WE1-SW) then the router contains a Gobi module and you should download the zip file from the folder “WR41V2-with-Gobi” or “WR44-with-Gobi” depending on whether you have a WR41 or a WR44. If the router is a WR44 and does not contain the Gobi module then download the file from the “WR44” folder. If the router is a WR41 and does not contain the Gobi module then check the value of the “HW Rev” on the approval label and download the zip file from the appropriate folder: 7103A choose “WR41” 3203A choose “WR41V2”