[SOLVED] Successful Linux Kernel build but unable to send network traffic

I have built Linux kernel with modules for all hardware; I have ip addr assigned for my network cards but I'm unable to ping device, site and browse internet.

I have downloaded latest Linux kernel 4.4 tarball and run make defconfig menuconfig -j2, enabled support for intel e1000e, zd1211rw (usb wireless modem) and android usb network share (https://wiki.gentoo.org/wiki/Android...#Version_4.4.6). Modules are static build inside kernel. With wireless modem i'm unable to search for wifi networks.
There is no default Network Scheduler so I chose fair queue. I flused all iptables rules. What I'm missing??

Can you describe what hardware you are running on? CPU? Main board? Architecture? Also, what was running before? Did you have a working system and are just trying to replace the kernel? Can you still reboot into the old kernel and have everything work?

I have Dell Optiplex 755 with core 2 duo running ubuntu 18.04 x86_64. I want to replace kernel to 4.4 from 4.19, but I must compile it myself because kernel-ppa doesn't have latest 4.4 compiled. Now everything working with my hardware when I run system with my compiled kernel but network is unavailable. I missing some kernel config..

For some reason "ufw disable" worked for usb threading but I'm still not able to search for wifi network.

Welcome to LQ! Try this (to collect 'full' info): https://github.com/UbuntuForums/wireless-info

wireless-info showed me that my wireless modem can find my local networks, but for some reason wicd-gtk and wicd-curses are not working with 4.4 kernel (with my configuration).

https://pastebin.com/ZURWPKaK

I think I need to enable CONFIG_CFG80211_WEXT, and use wpa_supplicant and iw instead.
This links might be helpful
[1]: https://linuxcommando.blogspot.com/2...i-network.html
[2]: https://forums.gentoo.org/viewtopic-...6-start-0.html

I can close this thread since it's almost solved.