[I can't install my wifi drivers]

Thanks Cooper! you are right, as you said my version is 3.18.23... I bought the router with this version in a spanish shop, buy cheap problems...

I prefer not touch the kernel for now.

Thanks again!

[I can't install my wifi drivers]

Emmm...

One more thing, of corse i have done update on opkg and you can see the repository configuration files:

root@Win:~# cat /etc/opkg/distfeeds.conf
src/gz chaos_calmer_base http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/base
src/gz chaos_calmer_packages http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages
src/gz chaos_calmer_management http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/management
src/gz chaos_calmer_routing http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/routing

 src/gz chaos_calmer_luci http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/luci
 src/gz chaos_calmer_telephony http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/telephony
root@Win:~# cat /etc/opkg/customfeeds.conf
# add your custom package feeds here
#
# src/gz example_feed_name http://www.example.com/path/to/files
# Old feeds from previous image
# Uncomment to reenable

src/gz chaos_calmer_pineapple https://www.wifipineapple.com/nano/packages

sorry for my english

[I can't install my wifi drivers]

One more thing, of corse i have done update on opkg and you can see the repository configuration files:

root@Win:~# cat /etc/opkg/distfeeds.conf
src/gz chaos_calmer_base http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/base
src/gz chaos_calmer_packages http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/packages
src/gz chaos_calmer_management http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/management
src/gz chaos_calmer_routing http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/routing

 src/gz chaos_calmer_luci http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/luci
 src/gz chaos_calmer_telephony http://downloads.openwrt.org/chaos_calmer/15.05/ar71xx/generic/packages/telephony
root@Win:~# cat /etc/opkg/customfeeds.conf
# add your custom package feeds here
#
# src/gz example_feed_name http://www.example.com/path/to/files
# Old feeds from previous image
# Uncomment to reenable

src/gz chaos_calmer_pineapple https://www.wifipineapple.com/nano/packages

sorry for my english

[I can't install my wifi drivers]

Installing kmod-rt2800-usb (3.18.23+2016-01-10-1) to root...
Collected errors:
 * opkg_download_pkg: Package kmod-rt2800-usb is not available from any configured src.
 * opkg_install_pkg: Failed to download kmod-rt2800-usb. Perhaps you need to run 'opkg update'?
 * opkg_install_cmd: Cannot install package kmod-rt2800-usb.
If the above errors were only about a kernel version missmatch, please ignore them. The package was installed successfully.

I can't "ignore them" because my wifi usb card (Asus N300) doesn't works.

root@Win:~# lsusb -t
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M
    |__ Port 1: Dev 2, If 0, Class=Vendor Specific Class, Driver=, 480M

Ther's no driver...