RT-AX88U WAN issues fix

[rochjp]

FYI, I may have found a fix for WAN issues. At least, it's something I haven't read elsewhere - and it did wonders here.

Issues:

• Daily DHCP issues/lost connectivity with WAN interface, where only a reboot would fix it
• Occasional/short gaps in internet connectivity, noticeable with game streaming

What I tried, without success:

• Restarting WAN services
• Restarting all network services
• WAN DHCP release/renew
• WAN static IP
• All WAN DHCP settings
• Factory reset, with most default Asus/Merlin settings

What worked:

• Turn on Dual-WAN
  • Turn off internet on the primary WAN interface
  • Setup another ethernet port for WAN, using the secondary interface

It's a night and day difference: router runs perfectly since. And unexpectedly, internet has been the most stable it's ever been. For example: I can now use my PS Portal without any stuttering - something I never could do before.

My guess: some sort of hardware issue with the WAN port, which, at some point, stops processing network packets - and occasionally hangs the router while dealing with it.

Just wanted to share, in case others have the same issue.

 

[heysoundude]

Interesting. watching with curiosity. I could test with mine, but I don't want to mess with stability.
If others try this and report similar results, asus needs to hear about it through RMerlin once it has been troubleshot/diagnosed and documented.