I have two routers 1st from ISP (192.168.0.1) another one OpenWrt (192.168.1.1), I can access ISP router on openwrt but openwrt not working on ISP network. I want to use openwrt connected network drives and printer on both network.
thanks @psherman, I tried many things, still not working, can we switch on another solution, as i can see i have bridge mode option with ISP modem lan port, can we handle it with openwrt? is this can help to connect both network into one?
If you engage bridge mode, theoretically your ISP device becomes just a modem and then passes the ISP provided IP address to the next device dwnstream. If you do this, you'll avoid double-NAT on your OpenWrt router, and you'd put everything behind the OpenWrt router itself. Then, if you want to create multiple networks for any reason, you could do that fairly easily within OpenWrt.
So, now is a good time to ask why some devices are/were still connected to the ISP device... obviously the ones behind your OpenWrt router were being setup with Adblock and other rules, per your earlier response... why not all devices behind OpenWrt? The answer to this will help us understand if you should setup 2 networks on your OpenWrt router, or just go with one.