Gracias por contestar.
Mi router tambien es el HG553, le tengo un Alfa awus036nh con una antena panel 19dBi, la potencia del wifi y el consumo ni idea.
Probé con un wifi down; wifi, y se queda igual.
Me pone esto.
Registro de sistema:
Jan 13 02:29:04 I user.info sysinit: ping: sendto: Network is unreachable
Jan 13 02:29:04 I user.info sysinit: PHY for wifi device radio1 not found
Jan 13 02:29:04 I user.info sysinit: PHY for wifi device radio1 not found
Jan 13 02:29:05 I user.info sysinit: Wed Jan 13 02:29:04 CET 2016 Attempting to connect to ----
Jan 13 02:29:05 I user.info sysinit: - - - - - > #2 Let's delay 12 seconds
Jan 13 02:29:07 I kern.info kernel: [ 618.948000] usb 1-1: new high-speed USB device number 6 using bcm63xx_ehci
Jan 13 02:29:07 I kern.info kernel: [ 619.224000] usb 1-1: reset high-speed USB device number 6 using bcm63xx_ehci
Jan 13 02:29:07 I kern.debug kernel: [ 619.408000] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'
Jan 13 02:29:07 I kern.debug kernel: [ 619.432000] Registered led device: rt2800usb-phy1::radio
Jan 13 02:29:07 I kern.debug kernel: [ 619.436000] Registered led device: rt2800usb-phy1::assoc
Jan 13 02:29:07 I kern.debug kernel: [ 619.444000] Registered led device: rt2800usb-phy1::quality
Jan 13 02:29:17 I user.info sysinit: - - - - - > #4 Ping delay of 3 seconds to 8.8.8.8. Count: 2
Jan 13 02:29:17 I user.info sysinit: ping: sendto: Network is unreachable
Registro de kernel:
[ 46.800000] usb 1-1: device descriptor read/64, error -145
[ 47.020000] usb 1-1: new high-speed USB device number 3 using bcm63xx_ehci
[ 53.504000] device wlan0 left promiscuous mode
[ 53.508000] br-lan: port 2(wlan0) entered disabled state
[ 62.136000] usb 1-1: device descriptor read/64, error -145
[ 77.356000] usb 1-1: device descriptor read/64, error -145
[ 77.576000] usb 1-1: new high-speed USB device number 4 using bcm63xx_ehci
[ 82.604000] usb 1-1: device descriptor read/8, error -145
[ 86.416000] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
[ 86.544000] device wlan0 entered promiscuous mode
[ 86.708000] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
[ 87.292000] br-lan: port 2(wlan0) entered forwarding state
[ 87.300000] br-lan: port 2(wlan0) entered forwarding state
[ 87.728000] usb 1-1: device descriptor read/8, error -145
[ 87.948000] usb 1-1: new high-speed USB device number 5 using bcm63xx_ehci
[ 89.304000] br-lan: port 2(wlan0) entered forwarding state
[ 92.976000] usb 1-1: device descriptor read/8, error -145
[ 98.100000] usb 1-1: device descriptor read/8, error -145
[ 98.208000] hub 1-0:1.0: unable to enumerate USB device on port 1
[ 98.480000] usb 2-1: new full-speed USB device number 2 using bcm63xx_ohci
[ 113.612000] usb 2-1: device descriptor read/64, error -145
[ 128.848000] usb 2-1: device descriptor read/64, error -145
[ 129.084000] usb 2-1: new full-speed USB device number 3 using bcm63xx_ohci
[ 144.216000] usb 2-1: device descriptor read/64, error -145
[ 159.508000] usb 2-1: device descriptor read/64, error -145
[ 159.744000] usb 2-1: new full-speed USB device number 4 using bcm63xx_ohci
[ 164.772000] usb 2-1: device descriptor read/8, error -145
[ 169.896000] usb 2-1: device descriptor read/8, error -145
[ 170.132000] usb 2-1: new full-speed USB device number 5 using bcm63xx_ohci
[ 175.160000] usb 2-1: device descriptor read/8, error -145
[ 180.284000] usb 2-1: device descriptor read/8, error -145
[ 180.392000] hub 2-0:1.0: unable to enumerate USB device on port 1
[ 220.292000] device wlan0 left promiscuous mode
[ 220.296000] br-lan: port 2(wlan0) entered disabled state
En el arranque el usb tiene prioridad 39. ¿Se puede cambiar esta prioridad?
Otra cosa que no me convence es que cuando mido la velocidad conectado al router me da más o menos 1/5 de lo que me da conectándome con el adaptador wifi. ¿Podria mejorar este porcentaje, aunque sea con otro router?