@AlokJain Stick with 160MHz and Possibly either Channel 100 OR Auto, 160MHz will choose that automatically.

@Kevin_Z I think he meant the Lifetime value changes every restart/reset. Could be intentional or a bug. But devices do get IPv6 addresses and Proper DNS address. Although ISPs with frequent changing...

@xigga Post reset? or restart? My one is working fine and I can change values. You mean reset and upload backup and do that all over again, incase the RADVD Lifetime didn't change?

@AlokJain Download and install this one and check again https://static.tp-link.com/upload/firmware/2025/202511/20251124/XX530vv1_0.8.0_3.0.0_UP_BOOT_agc3000(250902)_2025-09-02_11.41.46.rar Use these...

@AlokJain I suggest you use either channel 100 or use auto channel but 160MHz forced. Something isn't right and you are getting 1.2Gbps link speed. I suggest you update the drivers and update the...

@AlokJain I suspect your network card is the problem... Can you send the name/model of the network card? Cuz my one, which is AX411 and AX210, can do 2.4Gbps on 160MHz and Channel 100-128, but...