i manage to claim for my AX50 and bought new AX73 found good price .. mana tahu still same issue .. every 2-3 days

This is why i refrain myself from buying tplink router until they really fix this random disconnect and reconnect issue.
Good spec on paper, best price value but very very very unstable. Not sure is firmware or hardware but just very unstable because i can't replicate the issue.
It just happen to suka suka disconnect and reconnect or randomly restart.
All my past tplink router from archer ac1200, archer c7 ac1750, ax73 all having same issue. And all of them i manage to claim a new unit and sold it off.
You should really consider other brand if you are looking for a stable router like Axxx. Best stable router i have use so far. Never disconnect or random restart on me. But price is also high.