Nighthawk R8500 wifi local network bandwidth / slow

[LEFBE]

Hello community, 

Below my network configuration

• All physical devices like desktop, Nvidia shield are connected with RJ45 cat6 10 Gigabits
• Nighthawk R8500 provide only 5GHz wifi signal for Macs, tablet and phone and no have internet connection (provide only local service)
• 2 switch ref: D-Link - DGS-105

Internet => Box (provide DHCP) => R8500 (provide wifi) => Devices

Problem: 

Since I've upgraded to the newest firmware V1.0.2.86_1.0.75 I encounter some wifi problems.

Based on wifi reference, my network can provide 450 Mbps (56.25 MB/s)

Local file transfert

Laptop : MacBook Pro Retina

FIle size : 1 Gb

MBP to NAS server

Transfer 1Gb over the network cannot exceed 18 Mo/s

Before upgrading bandwidth was around 30 Mo/s

Wifi / router stability

Since this upgrade I need to restart my router every week

Since this upgrade some devices are randomly detected.

Please note:

Recently, I have to make a reset factory because the router was not responding.

I've apply my router configuration saved to restore it.

Someone encounter the same problem?

Do you have any advice?

Add screen

Upload 6bG over the network MBP to NAS

Download 2;3GB over the network NAS to MBP Pro

Thanks by advance, 

LEFBE

[LEFBE · Accepted solution]

Hello Community, 

I think I have found the solution.

Switch from chanell 48 to 60 (DFS) 

Result are here now : 

• Before: 19 MB/s
• After: 35,8 MB/s

Regards, 

LEFBE

[LEFBE · Accepted solution]

Hello Community, 

I think I have found the solution.

Switch from chanell 48 to 60 (DFS) 

Result are here now : 

• Before: 19 MB/s
• After: 35,8 MB/s

Regards, 

LEFBE