Asus RT-AX86S

[Mattew]

Hello,

I have an ASUS RT-AX86S router, but sometimes it drops all connections — both the internet and access to the router itself. When this happens, I can’t log in anymore.

For example, when I’m streaming a movie to my TV, if the internet drops, the router itself also becomes unreachable, and I can’t continue watching the movie from the hard drive. The only way to fix it is to cut the power and restart the router. Lately, this happens almost every day.

I already tried a factory reset. The first time, it worked for quite a while, but the problem eventually came back. I did another factory reset, but this time it didn’t solve the issue. Now it drops out every day, sometimes after just one or two days. The lights stay on, but the router stops working completely.

Can somebody please help me with this?

[Alex52]

I see there was a recent firmware update for your unit the first of this month. Recent firmwares are causing problems to multiple ASUS router models due to revised security changes. Since you have done the WPS factory reset, it is advisable for you to rollback your router firmware to the previous version as others have done.

[Ima_Tech_Geek]

Mattew—sounds like your RT-AX86S is experiencing full system hangs, not just internet dropouts. If the admin page and LAN access vanish, it’s likely a firmware stall or memory leak. A few things to try before going to older firmware:

Disable AiProtection, Traffic Analyzer, and QoS
These features can cause memory leaks or CPU spikes under load.

Turn Off WAN Auto-Reconnect
Go to WAN settings → Disable ‘Reconnect automatically’—this can prevent full system stalls when WAN drops.

Check for Multicast Flooding
If streaming from a hard drive, disable ‘Enable IGMP Snooping’ and ‘Multicast Routing’ under LAN → IPTV tab.

Try Older Firmware
Sometimes newer builds introduce instability—flash a stable older version and test for a few days.

Enable Syslog or USB Logging
If you want to trace the crash, enable logging to USB or remote syslog before the next dropout.

You’re not alone—this has hit others as Alex says.. but give those a try before you do roll back. 

[Alex52]

Problem with trying to log/trace the crash with Syslog - if the system reboots the logs are wiped. Enabling Feedback under System Settings might be a better option as it sends information to ASUS.

[Mattew]

i have done a few tips from your list thx. i hope it works