I switched from the default firmware to OpenWrt for mine: TP-Link TL-WR1043N / ND v1 , and I had a problem with the fact that I could not install new packages .
What I've done:
- Flash openwrt
- Installed by Luci (no problem there)
And than when I try to install something else, I get:
Collected errors:
* xsystem: wget: vfork: Out of memory.
* opkg_download: Failed to download http:
* opkg_install_pkg: Failed to download luci-app-wshaper. Perhaps you need to run 'opkg update'?
* opkg_install_cmd: Cannot install package luci-app-wshaper.
The important thing seems to be: * xsystem: wget: vfork: Out of memory. And I tried rebooting and “updating” several times.
But under Luci → Software, I see:

And here is my DF output:
root@OpenWrt:~
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/root 2048 2048 0 100% /rom
tmpfs 14052 1128 12924 8% /tmp
/dev/mtdblock3 4736 936 3800 20% /overlay
overlayfs:/overlay 4736 936 3800 20% /
tmpfs 512 0 512 0% /dev
root@OpenWrt:~
Link to the OpenWRT router: https://wiki.openwrt.org/toh/tp-link/tl-wr1043nd
: http://www.tp-link.com/en/download/TL-WR1043ND_V1.html
- , ? , USB-, , + , luci:)