Weak signal with Asus PCE AC68 card

[MrEtron]

Hi , i bought recently a PCE AC68 wireless card for my desk computer for replace my old TP LINK WN550G 54mpbs b/g , and by the same occasion i took the latest orange modem with AC wifi and dual band , but strangely my new wireless card have a weakest signal than the old TP LINK and i can't find the lasts broadcom drivers . Thanks for your help

 

[MrEtron]

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[porno1987]

hi i got the same wifi card and i did install the latest drivers but ther is no change the only change it did is not having the utility tool that came with the cd