SM961

My ping varies between 70 ms and 200 ms, and I cannot connect to the CA server only.

Quite possible a newer cloud update caused an issue on it due to incompatible firmware, it would be best to upgrade it back to 3.0.

The game doesn't use P2P so those servers will actually be misclassified as peers. Given you're on that pre DumaOS version I doubt you'll be getting the latest cloud updates that would fix that.

Using old school R1 firmware, really trying to make me rack my brain today huh! 
Make sure you have strict mode enabled and Ping Assist set to 0, then restart the game and try again please.

So far this firmware is worse stability. The wifi randomly quits and has to be rebooted multiple times a week. 

Okay, thanks.

You won't see any saturation with QoS on regardless of the speeds. Although it's harder to saturate your speeds a single download could saturate it which is why it's still a good idea to use it.

You don't have to disable it but you could set it to Auto Enable so it only applies when gaming and the rest of the time you'll get full bandwidth

We will try to improve it as much as we can but it will be limited by the locations of the available servers

Yes and no, it's due to the speedtest servers we use, they don't report the full speeds for everyone, it depends on what server it tries to connect you to

It's because it's reporting half the value you have set, as long as you're getting expected speeds through speedtest.net for example then no need to worry, the router won't be limiting you.

That depends on your network, the amount of clients and what’s being served via the net or internal sources. 

Only TP will be necessary in your case! However, you can set the QOS to 70/70% in case the other 4 and more devices "saturate" the bandwidth DL. But that is really unlikely!

It will still be quite useful in that case! I'd suggest following the below guide to get it setup.
https://support.netduma.com/support/solutions/articles/16000077073-dumaos-optimal-settings-guide-qos

It will always show that's absolutely normal, you can just ignore it

Glad to hear you managed to resolve it! Not necessarily, it's our recommended starting point but we do suggest experimentation to find what works best for your connection. It could be higher or lower than that.

It’s 880mhz dual core.

So, I replaced my TM1602A with my old modem  SB6120 and the spikes are gone according to my Netduma's ping diagnostics. Now I'm getting everything exeptional. 
     

I'm not saying that no arris modems work, but I'm saying the TC-7610 TP Link just works BETTER for gaming. I had the SB6141 and it seemed to work okay for me too until I used something else and it was a very clear difference even though my SB worked fine to me.

----
*NOTE FROM NETDUMA FRASER*
 
Keep in mind, the R1 still works with those listed you just may get a better experience with those in the compatibility list. Some people use those in the non compatible list and have no issues.
 
There is no reason to purchase another modem/router unless you have specifically found issues with your existing modem/router.
 
You are advised to do your own research before making a financial commitment.
----
 
 
THIS IS IN NO WAY A FULL LIST OF THE BEST GAMING MODEMS.
 
AS A GENERAL RULE - STAY AWAY FROM ISP PROVIDED "ALL IN ONE" MODEM/ROUTER HUBS IF YOU CAN.
 
IF YOU ARE LOOKING FOR A NEW MODEM AND WANT TO BE SURE IT WILL WORK PROPERLY ONLY PURCHASE FROM THE GOOD MODEM LIST.
 
BAD*:
 
Arris/Motorola:
SB6121
SB6141
SB6183
SB6190
TG1672G
TM1602
TG2492LG - Virgin Media Super Hub 3
TG3482G
 
AVM:
FRITZ!Box 6460
FRITZ!Box 6490
FRITZ!Box 6320

Cisco:
XG1-V3
DPC3848
DPC3848V
DPC3939
DPC3941B
DPC3941T
DPC3941 (commonly - Comcast Xfinity XB3)

Compal:
Super Hub 3  - virgin media
CH7465-LG Virgin Media Hub 3
CH7466
CH66xxx
 
Hitron:
CDA Series: CDA-32372 CDA-3-35
CDE Series: CDE-32372
CGN3 Series: CGN3, CGN3ACR,CGN3AMF, CGN3AMR, CGN3ACSMR
CGNM Series: CGNM-2250 CGNM-3552
CGNDM Series.
CGNV Series: CGNV4

Linksys:
CM3016
CM3024
CG7500

Netgear:
CG3300
CG4000
CG4500
CG4500TM
C6300
C6300BD (Telstra Gateway Max - Australia)
CM500
CM600
CM700
AC1750
AC1900 (R7000)
 
Pace:
C704
 
Panasonic:
C01AS03

Samsung:
Home Media Server
Horizon G5400
Horizon G7400
Bbox G7441
 
Sagemcom
F@st 5260

SMC:
D3G2408
D3G0804
D3GNV5
D3GN4
D3M1604
D3G1604
E3G1604
 
TP-Link:
CR7000
TC-7620
 
Technicolor:
TC8715D
 
Ubee:
EVW3226
 
Zoom:
5370
 
*By "bad" modem we mean ones that either have bugged chipsets which cause slowdowns and huge ping spikes under load or ones that have been tested and proven to cause less than optimal gaming experiences.
 
 
GOOD:
 
Arris/Motorola:
TM722G
TM822G
 
TP-Link:
TC-7610
TC-7610-E
 
Zoom:
5341J
 
https://www.theregister.co.uk/2017/08/09/intel_puma_modem_woes/

From my experience I would stay away from Arris

So, I replaced my TM1602A with my old modem  SB6120 and the spikes are gone according to my Netduma's ping diagnostics. Now I'm getting everything exeptional. 
     

So, I replaced my TM1602A with my old modem  SB6120 and the spikes are gone according to my Netduma's ping diagnostics. Now I'm getting everything exeptional. 
     

Check it out.

Last month when I replaced my modem that I got from my cable company Charter I thought I was replacing it with the latest greatest future proof modem boy was I wrong, I was wondering why all of the sudden my Netduma was acting weird whenever I would do a ping test would get spikes that I even called the cable company and complained that there was something wrong with my line, what they don't know is the they giving customers a bad modem. Now that I have my old modem everything is the way is supposed to be. Thanks Zennon for the heads up. If it's not broken don't fix it.