R3 + PS5 + 5G Router — Lag Spikes & Bad Hit Registration in Warzone

[Abdalla]

Hey everyone,

I have been using Netduma R3 for a while now and tried set it up properly for PS5 + Warzone, but I’m running into persistent issues and could really use guidance from experienced R3 users.

My setup

• Internet: 5G router (this is my main modem / WAN source)

• Router: Netduma R3

• Console: PS5 (wired Ethernet)

• Game: Warzone

• Topology:
  5G Router → Netduma R3 → PS5

The problem

• Frequent lag spikes / jitter

• Very inconsistent hit registration (bullets not landing, delayed damage)

• Gunfights feel desynced even when ping looks “okay”

• Happens even in low-ping lobbies

This feels more like bufferbloat / routing / NAT behavior than raw latency.

What I'm unsure about

QoS / Congestion Control:

• What’s the best starting point for upload/download caps on unstable 5G?

• Anti-Bufferbloat % recommendations for Warzone?

PS5 / Warzone-specific tips:

• Any must-change R3 settings that help hit reg specifically?

• NAT / UPnP / port forwarding best practices on R3 + PS5?

 

What I’m aiming for

• Stable connection (even if ping isn’t perfect)

• Consistent hit registration

• Fewer micro-stutters during fights

• Prioritize PS5 traffic correctly on 5G

If anyone is running R3 + 5G internet + PS5 successfully, I’d really appreciate:

• Screenshots of key settings

• Recommended QoS values

• Confirmation of router/AP mode choice

[Netduma Fraser]

With 5G that's really going to be your inherent cause of issues as just by its very nature it's not going to be entirely consistent so the router can only do much by stabilizing everything on your end but it can't counteract that. How have you set the 5G router to pass all traffic through to the R3 e.g. DMZ, modem/bridge mode? Are ALL devices connected to the R3? There are no specific settings for 5G as Congestion Control ensures devices don't cause each other issues, nothing to compensate for inherent connection quality issues. We always suggest starting at 70% for download/upload and then fine tuning from there based on your experience.

• What are the speeds you pay for/receive? 
• Have you entered those speeds into the router?
• How have you setup SmartBOOST?
• How have you setup the Geo-Filter?

[Abdalla]

My setup is as follows:

• The 5G router has the Netduma R3 set as DMZ

• All devices (PS5 included) are connected only to the R3

• No devices are connected directly to the 5G router

Connection speeds:

• Typical peak speeds: ~1 Gbps download / 100 Mbps upload

• For stability, I manually entered 100 Mbps down / 50 Mbps up into the R3

Congestion Control:

• After extensive testing and waveform bufferbloat checks, I settled on:

  • 30.5% download

  • 19.5% upload

• This consistently gives me A+ bufferbloat

• However, jitter does not go below ~5 ms

• I’m trying to understand whether this level of jitter is considered normal/expected on 5G, or if there is anything further the R3 can do to reduce it

SmartBOOST:

• Enabled

• Only the PS5 is set to maximum priority

• Other devices are not explicitly defined, as I assumed they wouldn’t affect the PS5 due to Congestion Control

• Please advise if explicitly assigning lower priorities to other devices would provide any measurable benefit

Other settings:

• PS5 is set as DMZ on the R3

• Geo-Filter and Steady Ping are currently not enabled

• I’d like to know if enabling either of these would make a meaningful difference to jitter or stability on a 5G connection, or if their impact would be minimal in this scenario

[Netduma Fraser]

You should enter the speeds you're actually paying for/receiving and then adjust Congestion Control from there. Entering lower speeds won't give you more stability. Once you've done this and found the best Congestion Control settings you'll see what you're left with. Make sure you have speed test bypass disabled on the Congestion Control page while conducting the tests. 5 ms is really good for 5G to be honest, I'd be shocked if you could get it any lower, I thought it would be much higher.

[Krush]

Quel Routeur LTE 5G utilisez vous ?

C'est génial d'arriver à 5ms de gigue... Comment c'est possible ?!!! 😁

 

Le problème avec le LTE c'est la congestion au niveau des antennes au heures de pointes même si la plus part des personnes utilisent le wifi une fois chez eux !

Le plus simple est de lancer une surveillance réseau, en lançant des tests de vitesses/ping toutes les heures sur 24h en semaine et le week-end.

Cela vous permettra de savoir les horaires sur lesquels il est préférable de jouer en fonction de la congestion FAI !

[Abdalla]

11 hours ago, Krush said:

Quel Routeur LTE 5G utilisez vous ?

C'est génial d'arriver à 5ms de gigue... Comment c'est possible ?!!! 😁

 

Le problème avec le LTE c'est la congestion au niveau des antennes au heures de pointes même si la plus part des personnes utilisent le wifi une fois chez eux !

Le plus simple est de lancer une surveillance réseau, en lançant des tests de vitesses/ping toutes les heures sur 24h en semaine et le week-end.

Cela vous permettra de savoir les horaires sur lesquels il est préférable de jouer en fonction de la congestion FAI !

I’m using a Huawei CPE Pro 5 as my 5G modem.

I’ve tested multiple bands and currently have the modem band-locked to the combination that gives me the best SINR and RSRQ, rather than chasing peak throughput. My goal was stability and lower jitter.

My jitter has dropped to around 3–4 ms, compared to ~5 ms previously, without any changes on the R3 side. I’m assuming this improvement is related to tower load, scheduling, or band conditions rather than router configuration.

[Krush]

Je comprends, le but est de jouer dans les meilleurs conditions !

C’est génial de voir que vous ayez réussi à stabiliser côté LTE / SA