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Where are you testing the speeds specifically? Are ALL devices connected to the R3 or do you still have some connected to the Huawei? It's very unlikely to be hardware.

Thank you for the suggestions. I have tried the following: · Enabled Speed Test Bypass in Ping Optimizer > Advanced. · Entered my expected speeds (450 Mbps download) in Settings > Speed Test > Advanced. However, I’m still seeing the same issue: · When my PC is connected directly to the Huawei 5G router, I get 350–450 Mbps. · When connected through the Netduma R3 (with DMZ setup and IPv6 disabled), I get only 130–176 Mbps. I am testing via Ethernet, not Wi-Fi. IPv6 is disabled on both LAN and WAN. UPnP is disabled. Congestion Control is set to 100% with “Always On,” and SmartBOOST is disabled. Speed Test Bypass didn’t change anything — the speed remains low through the R3. Could this be a hardware issue with the WAN port, or is there something else I should check? Thank you for your support.

Where are you testing the speeds specifically and is this over WiFi or ethernet? You'd definitely want Speed Test Bypass enabled to see the full speeds. Have you entered your expected speeds into the router?

Hello everyone, I need help with a strange speed issue on my Netduma R3. Setup: · ISP router: Huawei H155‑381 (5G) — connected via Ethernet cable · Netduma R3 in DMZ (R3’s WAN IP is in Huawei’s DMZ) · PC wired directly to R3 Symptoms: · When the PC is connected directly to the Huawei router (bypassing R3), I get 350–450 Mbps download. · When the PC is connected through the R3, I only get 130–176 Mbps download. · Ping is stable, Geo‑Filter works, but the download speed is capped. What I have already tried (following forum advice): · IPv6 disabled on both LAN and WAN of R3 · Congestion Control set to 70% / 70% and also tried 100% / 100% · Congestion Control Mode = Always On · Speedtest Bypass = OFF · Tried UPnP on / off (currently off) · Tried different Ethernet cables (CAT5e and CAT6) · Tested with SmartBOOST enabled / disabled · Confirmed that the WAN IP in Huawei’s DMZ is correct · Factory reset of R3 and reconfigured Nothing changed — the speed remains around 130–176 Mbps through R3. Note: I play Warzone competitively, so stable low latency is important. The speed cap itself does not affect gameplay, but I would like to understand why the router is limiting the throughput so much. Could this be a known bug, or am I missing a setting? Thank you for any suggestions.

Thanks for the update! So if like you said the fritzbox doesn't arrive by the time the service goes live and you want to connect the R3 up (presumably to an ONT?) then you'll need to use PPPoE. If you want to use the fritzbox and connect the R3 to that then the expose host option is essentially the DMZ which would mean that the fritz handles PPPoE and the R3 doesn't, it will just ensure you don't get any NAT issues using the two together. Pretty straightforward for the exposed host option, just entering the R3 IP or MAC address as far as I am aware but any issues with any of it do let us know!

Thanks for clearing it up for me. Static IP is part of the package, but thanks for clarifying what you mean about wan. My service is going live in 4 days time and router is coming in 4 days, so I may try to plug r3 in if it doesn’t arrive when I go live. As a temp solution, if it works it works if it doesn’t, it doesn’t. Hopefully it will be less than 24 hours just in case. I am not sure if you recall, but I did struggle with whole r3 in DMZ, just about manage to do it, haha. I’m a technical noob, so thankful for all your support. I am getting a Fritzbox from my isp. I understand you have to do an ‘expose host’ for the R3 to use it to do pppoe. Are you aware if setting this up is hard or straightforward?

That time is probably fine now. The peer thing is just how the server appears on the map, it doesn't affect connectivity or anything. Very strange you can't get a game with the Geo-Filter on - do you see any servers blocked when that happens?

So, it is currently Sunday, March 22, 2026. My current time is 01:44am. On my router, it shows as being Saturday, March 21, 2026 w/ a time of 21:40:08. The closest I can get, using the default netduma NTP server is Sat, Mar 21, 2026 at 21:04:40. What in the hell am I continuing to do incorrectly?

@Netduma FraserI actually had changed the time zone (automatically detecting time zone changes, too), and it's showing the correct date and time, for right now anyhow. I know this isn't a video game centered forum (which is great for me bc I'm learning a lot of valuable information, most of which wasn't even taught), but I saved 4 matches (well, just the last 3 min of each match) in case viewing them would have been of any value to you guys. My player is bouncing around, everywhere. My GeoFilter, when turned on, is unable to find a match, which was never the case. There was always matches being hosted on their chicagoland server farm, and even their Georgia server farm. One thing I noticed last night, though, when I had auto-ping host turned on, it would show up as a "peer" server type, but the IP would be registered with Vultr, AWS, and their other server group I can't recall offhand. Right now, though, the internet, including wifi, is working, so the important stuff is still able to be done during the day. The bad part is that there is absolutely no chance of being able to play anything online. Hell, I'm a solo player so I don't care about partying up, but I can't imagine things being any better in a party. One thing at a time......

That's correct, though you may not get the issue initially - that person didn't right away, was only after a factory reset it occurred. As in setting the WAN IP as static on the R3 might help, I wouldn't necessarily suggest buying a static IP purely for that purpose though as it's not a proven workaround.

No beta no, this latest firmware as well as the one you're on has the latest DumaOS version from us https://kb.netgear.com/000068422 The XR500 is end of service now so it's unlikely to receive any more updates unfortunately.

Thank you @Netduma Fraser On a separate note is there a latest firmware i should be on now? A beta perhaps?

Hi Fraser Thanks for information. So from what I read, you have to go back to older firmware and do a certain approach to get it to not disconnect, but you also noted you may not have an issue if you have a static ip? I have order a static one with my isp due to having nat issues with my current isp.

If the router is showing an incorrect date that can have some very weird effects on things you wouldn't expect - change the timezone/dst to ensure you're seeing the correct time in System Information, then reboot it from the interface and see if it's performing better.

That's great to hear, do keep us updated!

@Netduma Fraser @DARKNESS Any idea what this is all about? Specifically, the date. I don't care about the syn/ack DoS from Comcast anymore.

@DARKNESSThank you for reminding me to run pingplotter, and also, for the awesome breakdown on why Comcast operates as they do. I don't know, I just feel like sometimes they create an error to force a fix to bill you for, but that's probably just my twisted, jaded, irrational, and illogical logic at play. I'm to the point where I'm about to turn into a 9 year old, and just start kicking things that aren't working at this point. Oh, but I did find something else new that I have never seen on this router, ever. Check this out. Edit* tried to insert the pic but it placed it squarely in the middle of the page. So, I'll post it in another reply.

Seems to be much happier after a reset, havent been able to replicate any of the issues so far.

@mygamertagsucks If the CM MAC number is incorrect in Comcast's system, issues may arise during a reboot. However, if the modem is still listed in their system, you can verify this by contacting an agent. Request them to check the registered modem by providing the modem model and CM MAC. Ensure the information is accurate and ask the agent to delete any outdated modem history still present in the system from previous registered modems, as they do have the ability to do that. Yes, there's going to be salespeople 24/7 it’s literally part of their enforced employee agenda. It’s similar to when you go to a grocery store, and they ask, “Would you like to donate to children with cancer?” every time you finish your order. It’s designed to make you feel guilty while allowing the company to profit, as it serves as a way for them to avoid taxes. Essentially, it’s a loophole for financial gain, and in some cases, the money doesn’t even go to the children—it’s just stolen. At this point, I recommend connecting directly to the modem to isolate the issue and determine whether it's related to the ISP or the router. You can use PingPlotter, which offers a free trial if you haven't tried it yet, and show us the results, and we can tell you whether or not it is. https://www.pingplotter.com/products/free/

@Netduma FraserHonestly, rereading that, it makes no sense at all, but I'll try to explain it better. Sorry about that, bc that is a dumb statement even by my standards. Here goes: I think I was trying to say that, after getting the network back up, to the point it was semi functional, I was still connected in the following way Modem---->Router (via patch cable, so, like normal)---->LAN Port #1-------->back to computer, via the patch cable I use for my PS5, for some reason---->saw network broadcasting on cell phone, and was able to connect,without the "Connected/no internet connection" status, so I used my cellphone to check the wifi throughput. After I took the LAN cable out of the router, and did a reboot of the network, everything was fine, though. I then used my ps5s network connection test, amd, using the same patch cable as I did to the computer, from the router, my "speeds" show as 501.1down, 34 7 up. So I tried to actually play my PS5, and the game was nothing but rubber banding players, being at point B on the map, suddenly back to point A. I didn't try it on wifi though. Any thoughts?

I would suggest just leaving everything at their defaults for now, especially from Settings and see how you get on

I have just dont it now, should i just leave all the settings the way they are and see what happens? Or should i change my DNS settings and set IPs <.50 again?

How is it after the factory reset?

No not that I can think of, we changed to a newer powerstrip but I'm almost positive it was doing this before that.

No fix specifically yet, there is a recent topic on the matter which may have some useful info for you https://forum.netduma.com/topic/60877-pppoe-session-not-automatically-reconnecting-every-24h-–-netduma-r3-firmware-40540