Ok i managed the other router so it's adress is now 192.168.2.1 so the 192.168.1.1 is now unused.
I have connected my openwrt device to main router and i have internet connection only over lan cable.
Status of network Openwrt device to main router:
Mode: Client | SSID: lujurisic
BSSID: EC:1D:7F:FB:79:77 | Encryption: WPA2 PSK (CCMP)
Channel: 6 (2.437 GHz) | Tx-Power: 19 dBm
Signal: -61 dBm | Noise: -95 dBm
Bitrate: 86.7 Mbit/s | Country: US
Under general setup here's option called "Network" where i can attach networks to this wireless interface. What is this? i cant find useful information on internet. Please help someone.
Already tried to revert to stock firmware but it says it's unsupported format so i got stuck with this without wifi on my floor. It's quite urgent now..