Issues are basically it disconnects often then reconnects or you are still connected, veru strong connection and everything shows it's a perfect connection, but no wifi is present. You need to toggle wifi on and off to remedy that issue. I am using an app to keep it connected to my wifi, which works, but it's not perfect. Still have the issues sometimes.What sort of wifi issues are you encountering? The adb commands only fix dhcp, it shouldn't have anything to do with wifi quality issues. have you tried using a static ip to check if it works with that. The wifi chip on the T285 and T280 don't support the 5Ghz channel, so make sure your router as a 2.5 Ghz channel available.
Try to flash arise numbers or if you flash arise magnum you've to define "true" for which ones to flash in the arise prop file in the root folder of your internal sd card
Please refrain from double posting. Its unnecessary.Thanks for replying. I really want to get my device rooted. I do not have OEM unlock option in developer options.
I have used using odin to flash SMT285_sepolicy_patched_permissive.img. Did not flash. https://ibb.co/mTSFBJ
I have used using odin to flash TWRP, did not flash.
In download mode FRP lock is shown on screen. https://ibb.co/dD60BJ
su mount -o rw,remount,rw /system chmod 755 /system/etc/dhcpcd/dhcpcd-run-hooks mount -o ro,remount,ro /system