I have a Buffalo WHR-1166d router with LEDE version (OpenWrt SNAPSHOT r6038-13e8d54 / LuCI Master (git-18.039.58622-76f9f5e)) and kernel version 4.9.77 , installed on it. I recently tried to upgrade its firmware with (openwrt-ramips-mt7620-whr-1166d-squashfs-sysupgrade.bin) file. however after upgrade i can only ping the device and access to it only via ssh but I am not able to access the web interface of the router .
now I am wondering if it was a correct version to be upgraded to or not .
that would be greatly appreciated if anyone can shed a light on this