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R750 Slow Speeds

roger_federer
New Contributor III

One of my homes has Cable Internet speeds rated at 450 Mbps Down & 20Mbps Up.


I have a Arris TM1602 DoCSIS 3.0 16x4 > Ubiquiti EdgeRouter 12


At this location I had a...


27" iMac (Model Spring 2019)

iMac > Cat 6 Wire > EdgeRouter 12 = 450 Mbps Down & 20 Mbps Up

iMac > WiFi 5 > PhiComm K3C AC 1900 = 380 Mbps Down & 20 Mbps Up

iPhone 11 Pro (2x2 WiFi 6 Chipset) > WiFi 5 > PhiComm K3C AC 1900 = 365 Mbps Down & 20 Mbps Up


I picked up a Ruckus R750 Unleashed and added it to the EdgeRouter 12


27" iMac (Model Spring 2019)

iMac > Cat 6 Wire > EdgeRouter 12 = 450 Mbps Down & 20 Mbps Up

iMac > WiFi 5 > Ruckus R750 = 375 Mbps Down & 20 Mbps Up

iPhone 11 Pro (2x2 WiFi 6 Chipset) > WiFi 6 > Ruckus R750 = 362 Mbps Down & 20 Mbps Up

Note: I am powering the R750 with a POE+ Injector but could it may be under powered?

I know if it is under powered it may not perform as well as it should but I find it hard to believe an $750 Access Point can't beat a 2 year old $80 consumer router, especially since R750 is WiFi 6 Certified and I'm using an iPhone 11 Pro with WiFi 6 2x2 Chipset.


PoE Injector = Cudy 30W Gigabit PoE+ Injector Adapter, IEEE 802.3 at and IEEE 802.3 af Compliant, up to 100 Meters (328 Feet), 10/100/1000Mbps RJ-45, POE150


Ruckus Power Specs

https://www.commscope.com/globalassets/digizuite/61778-ds-ruckus-r750.pdf (Page 5)

802.3af PoE = PoE: 12.54W

802.3at PoE+ = Full Functionality = PoE+ : 22.34W    /    DC Power: 22.69W

Ruckus Optional Accessories 

These are much higher power specs than stated above in their power specs.

902-0180-XX00 · PoE Injector (60W)

902-1170-XX00 · Power Supply (48V, 0.75A, 36W)


Super appreciate any advice even if it's not related to the R750 just seems odd to me. Thank you!

I will also run iPerf3 tests between server (iMac) and iPhone to test the speed of the hardware minus the ISP. This will rule out any ISP issues. I still think hitting the same 450 Mpbs as a Cat 6 cable via the iPhone 11 Pro via the 2x2 WiFi 6 chipset should be easy.

26 REPLIES 26

raymond_lau_740
New Contributor III

My set up is similar in that I also have R750 and EdgeRouter but ER4. Also use an injector - 60 watts also if I recall correctly but it is third party. In unleashed, I have the R750 set for at power mode always.

Gigabit down (measured at 940 with ookla on ethernet).

I see betw 400 and 650 on iPhone 11 Pro which is my only WiFi 6 device as I walk around. My WiFi 5 MacBook Pro toos out at around 550,


What is strange about your data is the iMac is faster than iPhone. Opposite my experience.

I don’t have suggestions but thought I would provide some comparative data given the setup similarities.

john_olsthoorn
New Contributor II

https://www.commscope.com/resources/apps/ruckus-speedflex/

Try the Ruckus speedflex app to test without having to setup iPerf.

Also check on which radio band you are connecting, 2,4 or 5 GHz


I tried the speedflex tool on the iPhone 11 Pro from about 10ft away no barriers.


I don’t know how to check which radio I’m connect too. Update below.

I will also get a 60W PoE injector but this should not be the issue I wouldn’t think. 

R750 <> WiFi <> iPhone 11 Pro

This seems sad for a pretty high end Access Point.

Absolutely nothing else connected to this AP when this test was run.

Image_ images_messages_5fbe51f0ce4ce1357af2177e_8c8cf8a32dc493325cc3079365eea7f4_2020112507.13.55-d4a551c8-894f-4b9d-8cd1-2083d7e55788-1974233311.png

I turned off the 2.4 radio, still the same sub par performance.

Image_ images_messages_5fbe5246ce4ce1357af21782_10db3fa36b55ce50d340174db221aff6_2020112507.27.13-0da1425a-9d47-4ed7-b544-cb42249b12b9-1568278050.png
Image_ images_messages_5fbe5246ce4ce1357af21782_42ff590d88817ba43a83607f62e24e0e_2020112507.25.42-37569a78-d9f8-422d-a285-a0f15e051395-673967492.png