RT-AC88U slow until reboot

[nrgiii]

I just got gigabit internet via Fiber yesterday. I have anAC88U running 384.19 acting as a wired router only (wifi radios turned off) and CTF enabled. No VPN or QoS are enabled.
This morning when I got up the speed was 94 Mbs, which is down from 750 Mbs last night. After rebooting the router the speed jumped backup up to 750 Mbs. Tests were from the same PC over wired connection using the same speed tool.

Is this normal? Do I need to reboot daily instead of weekly as I do now? Any advice on how to maintain high speed would be appreciated.

nrgiii

 

[L&LD]

What did the link speeds show to the computer and the router? Were they at 1GbE or 100MbE?

Which ports are you using? Ports 5-8 are known to be buggy (add-on switch and all).

 

[nrgiii]

The link showed 1Gbs and I know to stay off ports 5-8. I was on ports 1 & 2.

 

[L&LD]

When was the last time you did a full reset without using a saved backup config file?

 

[nrgiii]

It's been a long time. I've done dirty flash upgrades since 384.11 and never had an issue.

 

[L&LD]

Now you do.

Update/Reset Mini Guide

 

[nrgiii]

Ok. Just so I'm clear, you're saying follow the "Fully Reset Router and Network" instructions: here
Correct?

 

[L&LD]

Yes, if you want it one and done.

 

[nrgiii]

I did all the steps one and one. So far the speed has held up without overnight degradation. Thanks!