Guess what I did. I swapped back with old CGNM -3552 and my original speeds are back. Wired around 800mpbs, 5G around 450 mpbs. Finally relaxed after 2 weeks without internet.Rest in Piece CODA-5582, never ever will get those modems
I swap this so called new router for 3 times, 2.4 wifi giving me no more than 8-9 Mpbs, 5G around 30-40 and wired connection arounf 200-300Mpbs. My old router was amazing. Techincal rep on the phone have no clue what's ha[penning. Service rep already...