All Activity

So, just a quick update. I am now online. I had to register my new modem with Comcast, and, for some reason, they required me to register my router with them, as well. Turns out, they still show my connection running through our old XR500. If I'm being completely honest, I can't say I know why this worked. The customer service agent has me give them my CF MAC address of the modem, but said nothing of the router. And, @Netduma FraserI didn't forget what you told me. I did not volunteer any information to her. She asked me, "oh, you are not using our equipment. You have your own?" And I simply told her "correct", so she f'd around some more, and told me a technician would be out today, and we would be in contact with them (today), and that's not happened, so, it's time for me to just go in to their physical location and try to keep calm. The problem is, the people you need to speak to, the people like All of you, are never there. I'm simply talking to a salesman, so, I really think we are going to change over to Metronet. But, after registering the router with Comcast, via their mobile app no less, I have had a connection, but it's not optimized yet. Also, I did all of the ipconfig crap, and it said successfully flushed DNS, successfully released then successfully renewed. But, logging into the router always takes me to the admin Create password Confirm password What is your oldest sisters name? What is your father's middle name? And that gets frustrating as hell. At one point, I renamed my network, the damn password I was going to use, and don't know how the hell that happened. I think I was just running on empty at the time.

Olá, bom dia Fraser! Estou enfrentando um problema com meu Netduma R3, que parou de funcionar hoje. O equipamento estava operando normalmente, porém a conexão de internet caiu repentinamente. Ao verificar o aparelho, notei que todas as luzes estavam apagadas. Realizei o teste da fonte de alimentação, que está funcionando corretamente, mas o modem não liga de forma alguma. Poderia, por gentileza, me orientar sobre como proceder ou indicar a assistência adequada para esse caso? Informo que adquiri o Netduma R3 em 16 de julho de 2024. Fico no aguardo do seu retorno. Atenciosamente, Marcelo Xavier } Hello, good morning Fraser! I am experiencing an issue with my Netduma R3, which stopped working today. The device was operating normally, but the internet connection suddenly dropped. When I checked the router, I noticed that all the lights were off. I tested the power supply, and it is working properly, but the Netduma R3 does not turn on at all. Could you please assist me on how to proceed or advise on the appropriate support for this issue? For your reference, I purchased the Netduma R3 on July 16, 2024. I look forward to your response. Kind regards, Marcelo Xavie

Hi does the the Duma R3 support encrypted DNS ?

Happening a lot now with more people using the network, this is all the log says. [DHCP IP: (192.168.1.5)] to MAC address F0:72:EA:D7:B1:ED, Wednesday, Mar 18, 2026 19:49:09 [DoS attack: RST Scan] from source 23.211.125.73,port 443 Wednesday, Mar 18, 2026 19:48:55 [DoS attack: RST Scan] from source 192.178.187.94,port 443 Wednesday, Mar 18, 2026 19:48:55 [DoS attack: ACK Scan] from source 54.186.23.98,port 443 Wednesday, Mar 18, 2026 19:47:08 [DHCP IP: (192.168.1.8)] to MAC address AE:BD:1C:97:5C:2A, Wednesday, Mar 18, 2026 19:44:36 [DoS attack: RST Scan] from source 20.43.111.112,port 443 Wednesday, Mar 18, 2026 19:44:06 [Time synchronized with NTP server] Wednesday, Mar 18, 2026 19:43:33 [Internet connected] IP address: 100.100.113.119, Wednesday, Mar 18, 2026 19:43:32 Seem to be unable to search for anything for longer amounts of time aswell, sorry for the spam.

Just happened when i turned my pc on again. This was what my logs were at the time [DHCP IP: (192.168.1.2)] to MAC address 48:68:4A:4C:DC:DB, Wednesday, Mar 18, 2026 19:13:05 [DHCP IP: (192.168.1.8)] to MAC address AE:BD:1C:97:5C:2A, Wednesday, Mar 18, 2026 19:13:00 [DHCP IP: (192.168.1.10)] to MAC address C2:61:51:C7:98:4E, Wednesday, Mar 18, 2026 19:09:15 [DoS attack: ACK Scan] from source 184.28.9.100,port 80 Wednesday, Mar 18, 2026 19:09:15 [DHCP IP: (192.168.1.8)] to MAC address AE:BD:1C:97:5C:2A, Wednesday, Mar 18, 2026 19:02:43 [DHCP IP: (192.168.1.11)] to MAC address 9A:3A:8B:6E:22:D2, Wednesday, Mar 18, 2026 19:02:21 [DHCP IP: (192.168.1.11)] to MAC address 9A:3A:8B:6E:22:D2, Wednesday, Mar 18, 2026 19:02:18 [DHCP IP: (192.168.1.11)] to MAC address 9A:3A:8B:6E:22:D2, Wednesday, Mar 18, 2026 19:02:17 Cant really see anything out of the ordinary, this one had everything disconnect and give me a 'No Internet Access' error.

@DARKNESSThank you for the heads up regarding my rights as a consumer, but I think the most extreme I will go is to report them to the better business bureau. Everything about Comcast (from 0ur family perspective) has been one thing after another, and their magical fix is always, and I mean ALWAYS, try to offer up more bandwidth, for free, for 3 months. And right at 3 months, if you do not tell them, "I do not want this. I do not need this. This is a waste of my money", they will charge you, and lock you in for the price of that extra bandwidth. I have no clue why, but when I got on my Xfinity app (oddly, Comcasts app isn't supported anymore.. see dumb poopy on top of dumb poopy), I registered my modem, and that got me to the internet on one device. Now I am stuck in a GD endless loop of network admin sign on page after page. The few times I can even search for something, everything I click on is not trusted by netduma. Honestly, im proud of myself for maintaining an adult composure this far, but I feel the snap coming, fast. It gets ugly and I start using big words I don't know the meaning of, you know, typical douchebaggery type of stuff. I love that this community is so supportive. Ask the same question on Reddit, the first response is usually, "if you wanted netdumas OS, you should have just gotten a netduma. Sucks to be you", and I can't even say that they're wrong anymore. I'm just thankful for what I do have, while I have it. Which is why it bothers me that this bothers me so much.

@mygamertagsucks So did you actually get a technician to come to your home and check equipment, or not? If you’re getting looped around technicians, what you can do is keep records of the tickets and then file an FCC complaint, and I can promise you’ll receive a call pretty quickly from a regional agent. They don’t like it when consumers know their rights. But just so you know, if you’re wasting their time, you will be fined. This is for situations where you’re literally being played, and if it gets extreme, I recollect you can pay 200 bucks for like a civil report, etc. They’re not untouchable but a pain to deal with. I had to do that once in my lifetime. You will need to provide proof using networking tools, such as PingPlotter or a similar application, so basic understanding is required. As for you connecting directly to your modem, pretty certain it might be related to you not renewing your DHCP or the renewal getting stuck; therefore, manual renewal windows flush, etc. ISPs are not untouchable. - https://consumercomplaints.fcc.gov/hc/en-us/articles/115002206106-Internet-Form-Descriptions-of-Complaint-Issues

Well, here's where things currently stand as of 10 after midnight here in Indiana: I can connect directly to the internet on my laptop, from the modem. However, that is the only way I can connect. When I plug the router back in, and connect the modem to the router, the router is broadcasting a signal, but i cannot get online. I just keep getting the "failure to obtain IP address" issue. Comcast, was Comcast. Tried to upsell me on an XB8 wifi system as soon as she pulled diagnostics, so I had to be kind of a jerk and let her know that I was 100% not interested in using their equipment. The lady did try to tell me, "Mr John (not my first name), I see here that the problem on our end has been identified, and I have great news for you!" (By the way, I'm using quotes, even though I'm giving more of a paraphrased version of what she was telling me, so, sorry if that offends anyone) "Your modem has been more than 15 years now, and that's a long time for a modem. This is the reason you cannot receive all of the speeds from your internet." First, bulls**t. I told her my PS5 routinely connected at 501mbps down by 40mbps up. Just a very poor attempt on her end to insist on upselling me. When I plugged in our DOCSIS 3.1 compliant " Hitron CODA" (that's the real company name and router name. That was ordered by my dad, for whatever reason. It connected me, and I no longer receive the DNS error message on my laptop. Yet, when I run a cord to my router from the modem, I cannot connect to the internet, despite a factory reset. I'm getting frustrated. I'm thinking of just getting back into guitar at this point, lol.

look how many servers in my area and they always wanna put me on east in game i have west selected and this also happens on arc raiders the thing i notice it happens more on pc my xbox connects to my prefer servers but my pc struggles even when having my pc set as a PlayStation

Thanks again for your help, you were right, the solution does work, but only if the process is followed very strictly. I can see why others may have failed or stopped midway. In my case, if I didn’t do: downgrade to 4.0.41 factory reset at that exact stage only use the correct command to bypass the wizard then upgrade it would break things badly (I had HTTP redirection to /dumaweb, SSL issues, Windows Update failing, etc.). Regarding your question about the 24h disconnect: Before this full process, I had hard disconnections every ~24 hours with no automatic reconnection at all ; I had to manually reboot the router each time. Now, after applying the full method, everything is stable. It has been 48 hours without any disconnection or need to reboot, so for now it looks like the issue may be completely resolved. What I’ve also identified is that the issue seems to be triggered specifically after performing a factory reset on firmware 4.0.540 or 4.0.645. After that, PPPoE auto-reconnection stops working correctly. Using the 4.0.41 reset + upgrade method seems to avoid that state entirely. I’ll continue monitoring to confirm over a longer period, but this is already very promising. Also interesting to hear you're running 4.0.645 successfully, that gives me confidence to maybe test it later, once I’m sure everything is stable on my side.

Thanks again, all of you who helped me so far with this issue. This forum has actually been a wealth of knowledge for people like myself, who, at one point would have been considered tech savvy, but have obviously not stayed up to date on the tech front as much as I should have. You're all a valuable asset for everybody who really wants to understand networking in general, with an emphasis on DumaOS. I cannot thank you all enough. For the time being, I'm not going to mark this as solved until I hear more from Comcast tonight. Oh, and thank you for mentioning the part about the router not being involved. I'm generally good at not volunteering information, but here on the forums, it's a different issue when you know that there's some information that you guys need to know in order to help me. So, I will make sure they know this is an issue going from Modem to computer. Heck, the routers not even plugged in right now. Time to go bang my head against the wall!

Thank you; I now know that the solution does, in fact, work for others, albeit with some bypassing involved. I have suggested the solution to others in the past, but I don't think anyone has actually persevered until the end. I have promptly used the latest firmware versions, as they are released, with the solution. I am currently using firmware version 4.0.645. The only slight problem I have encountered, which may be unrelated to the solution, is that the '--' fails to load occasionally. This problem has only started to occur more recently, and it resolves itself after some time without any intervention. One last question: do the 24-hour disconnects still occur but automatically reconnect afterwards, or do they no longer occur altogether?

General errors like that I don't always trust because all it's really telling you is it wasn't able to connect and there could be another reason for it BUT If you're getting a DNS issue then that is a problem, basically DNS is what turns a URL for example netduma.com into the IP address that you use to connect to that website. So if that's not working properly then it means that entering google.com into your web browser for example it wouldn't know what IP to connect to/access to then display the correct information back to you. If that is the case the ISP should be able to sort it quite easily, either from a new modem (if this is the issue then wiring is less likely and now more likely the modem) or something they can sort remotely. I understand your frustration on that, they have their script they have to go through and they will go through it regardless of what you say. Your best bet is to go through the motions, tell them the issue, do/feign doing if you've done their suggestions before (make sure to leave enough time in between so they can be certain you've done it) and let them go through all the steps they're required to ask you. If they can't fix it with those basic suggestions which is likely then they will either want to send a tech out which as you've mentioned isn't viable, hopefully explaining that they will (or ask to be) escalate(d) to a tier 2 or 3 tech. They will have more knowledge and should hopefully provide more targeted support/be able to identify the cause and solution. Also absolutely do not mention another router - it's vital you're clear that this issue is experienced when directly connected via ethernet from your PC to their modem - not saying they will but some may use that as the excuse to get you off the call if they don't know what the problem is. Good luck, I hope you can get it sorted and would be interested to hear an update on how you get on!

Sorry for the blurry nature of the photo, but my usb-C to USB disk isn't on me at the moment. This was just troubleshooting the SB6183 straight to the computer. So, would this, then, indicate a Comcast issue? Everytime I call them about an issue like this, they ALWAYS, and that is not an exaggeration, use the following phrase that burns me to my core because A. I know it's total BS, and B. It is one of the few phrases that I can actually understand, as there is clearly a language barrier. One last thing about Comcast; they never seem to be able to provide a paper trail as to when support has had to be called, and the eventual outcome of said issue. And even tho I write all of this stuff out on paper, they don't want to hear it. I can start the call by telling them, "I'm only calling you because I've power cycled the network, checked all connections and wiring, so I need to know what shows up on your end." Maybe I'm just a jerk, but that seems like the type of stuff you wouldn't then turn around and say, "see that connector on the back of your modem? Have you made sure it is plugged in?" Dang it. I hate dealing with these ppl but here goes. *Edited to Add the Following Question: would this explain the subnet masks showing up improperly on dumaos, as well we ipconfig /all, yet, when the Internet was working, it always showed up properly on the devices on the network?

Ah potentially - you may need to look up the specifics but if you look at the WiFi for the router on your phone you should have a setting - Private/Random MAC Address, disable that. Then you can assign an IP again and it will hold this time.

Thank You, @Netduma Fraser. Unfortunately, for right now at least, this appears to be the case. To stay within the forum decorum, I will abstain from ranting about why this issue bothers me so much. I have pics that I took, using my phone, because screenshots are hard, right? Anyhow, everything says that the device is functioning properly, however, there is no response from DNS or a misconfigured DNS issue."

My phone seems to keep changing its ip even though im saving it as a device. Could that be the issue?

[admin login] from source 192.168.1.2, Wednesday, Mar 18, 2026 10:09:53 [DHCP IP: (192.168.1.2)] to MAC address 48:68:4A:4C:DC:DB, Wednesday, Mar 18, 2026 10:09:15 [DHCP IP: (192.168.1.8)] to MAC address AE:BD:1C:97:5C:2A, Wednesday, Mar 18, 2026 10:04:00 [DHCP IP: (192.168.1.8)] to MAC address AE:BD:1C:97:5C:2A, Wednesday, Mar 18, 2026 10:00:29 [DHCP IP: (192.168.1.15)] to MAC address DA:81:47:BE:43:67, Wednesday, Mar 18, 2026 09:51:39 [DHCP IP: (192.168.1.5)] to MAC address F0:72:EA:D7:B1:ED, Wednesday, Mar 18, 2026 09:50:18 [DHCP IP: (192.168.1.5)] to MAC address F0:72:EA:D7:B1:ED, Wednesday, Mar 18, 2026 09:50:17 [DHCP IP: (192.168.1.10)] to MAC address C2:61:51:C7:98:4E, Wednesday, Mar 18, 2026 09:47:11 does this look correct now?

It is almost always due to settings, please provide a screenshot of your Geo-Filter page when you see the issue happen

I've seen this same auto response in many threads before. This doesn't work for me. I've seached redditt and here for quite some time before I even said anything.

I get why you might feel that way, but I think it's a bit early to make that assumption before you've properly had support for the issue. To force servers you need to do the following: It's essential the Geo-Filter is enabled before the game client (e.g. Steam etc) if on PC or platform (e.g. Xbox, PlayStation) or the game have been launched. If you change Geo-Filter settings when you're on the game then you will need to restart the game for those changes to take effect, otherwise it will use the previous Geo-Filter settings and appear not to be working. For settings ensure Ping Assist and Geo-Latency are disabled in the Geo-Filter menu that can be found by clicking ⋮ in the top right hand corner of the page and go to Settings. Strict Mode should also be enabled, it is enabled by default so if you haven't disabled it you can ignore it. If you have disabled it or want to check it can be found in Settings > Troubleshooting > Advanced > Developer Options. Fast Search should also be disabled which it is by default so can be ignored if you haven't changed it, otherwise this can be found in the same place.

I spent all of this monry for this router and it can't even do the one thing I paid for it to do. I'm on a PC running the latest firmware. (I've tried previous firmware and even beta firmware) EVERYTIME I want to play Call of Duty, I have to log into the menu and delete my pc as a device, resync, readd my device, then boot to the game. Not 1 time will the geo filter work as strict and block out servers that are not in my custom drawn box nor the standard circle. I've set my pc to show as a Playstation, and Xbox and neither will work.I never had this issue when I used my Netgear XR1000 previously. This thing literally is a paper weight. I get that there are bugs, R&D, testing, and all of that but damn. Is there something im missing here? Is there some magical fix to get it to work?

That's good - grab another log and look at any repeated DHCP IP entries that are left, presumably they're going to devices that you haven't yet reserved an IP for in which case if you add those it should be better

I feel like it's less but It could be placebo.

That's great to hear, thanks for the update! I would suggest staying on your current version as I cannot guarantee the kind of stability for your issue that you're looking for on that version at the moment.