pinkoos Posted February 16, 2022 Author Share Posted February 16, 2022 Gonna try an old modem I have and see what happens Quote Link to comment Share on other sites More sharing options...
pinkoos Posted February 16, 2022 Author Share Posted February 16, 2022 Modem logs showing T3 timeout errors on upstream channels, retries exhausted Quote Link to comment Share on other sites More sharing options...
ekohn00 Posted February 16, 2022 Share Posted February 16, 2022 8 minutes ago, pinkoos said: Modem logs showing T3 timeout errors on upstream channels, retries exhausted if both your modems show the t3 problem, call your provider. let them know you're getting T3 errors. Quote Link to comment Share on other sites More sharing options...
Andrew luecke Posted February 16, 2022 Share Posted February 16, 2022 12 minutes ago, pinkoos said: Modem logs showing T3 timeout errors on upstream channels, retries exhausted Sounds like your cable connection is borked.. Here in Australia at least, far too common unfortunately ... Quote Link to comment Share on other sites More sharing options...
pinkoos Posted February 16, 2022 Author Share Posted February 16, 2022 Yeah just started getting official notifications from Comcast of an “outage” What pure dumb luck coincidence with the router DHCP stuff Quote Link to comment Share on other sites More sharing options...
pinkoos Posted February 16, 2022 Author Share Posted February 16, 2022 So got a notification that service was restored, but still abysmally low upload speeds - I don't notice any difference between earlier and now I have a tech coming out tomorrow, so let's see what happens Quote Link to comment Share on other sites More sharing options...
ekohn00 Posted February 17, 2022 Share Posted February 17, 2022 12 hours ago, pinkoos said: So got a notification that service was restored, but still abysmally low upload speeds - I don't notice any difference between earlier and now I have a tech coming out tomorrow, so let's see what happens did you go back so the only connection is modem and laptop to check speed? don't focus on anything till this is working Quote Link to comment Share on other sites More sharing options...
pinkoos Posted February 17, 2022 Author Share Posted February 17, 2022 Yes it seems to be comcast issue, tech appointment this afternoon Quote Link to comment Share on other sites More sharing options...
pinkoos Posted February 17, 2022 Author Share Posted February 17, 2022 Modem logs full of those t3 errors every few minutes Quote Link to comment Share on other sites More sharing options...
pinkoos Posted February 18, 2022 Author Share Posted February 18, 2022 Tech couldn’t do much as Comcast said the outage was ongoing and also he said that his meter was broken (and had been broken for a month, WTH) Anyway got a notification in the late afternoon that the issue was resolved and indeed it does seem to be the case, back to 600s down and 20s up So back to monitoring for my original issue… Quote Link to comment Share on other sites More sharing options...
pinkoos Posted February 20, 2022 Author Share Posted February 20, 2022 So now that the Comcast issues seem to have been resolved and have been relatively stable for the past couple of days, I'm happy to report that I can go back to dealing with the underlying problem...LOL Network went down yesterday afternoon and again early this morning As is the case 90 to 95% of the time, a modem reboot brought the connection back up The only DHCP reservations we left in the Araknis router when dealing with the total meltdown that 60 to 70 reservations caused earlier in the week are my Mac mini (because it's running 24/7 Plex and SecuritySpy servers) and my two old touchscreens (since I'd been having issues with both, particularly the one in the kitchen that needs to be constantly reconnected to the Director) One theory I had yesterday that doesn't seem to hold water anymore now that the network went down again this morning was that maybe my son's PC has something to do with the issue - he had been out of town since Thursday for a tennis tournament, so his PC had been asleep since then. Yesterday afternoon, I woke it up to actually use ComposerHE and within 5 to 7 mins, the network went down So of course I put 2 and 2 together and thought hmmmm, maybe there's some conflict or something that occurs when his PC is awake that occasionally brings the network down However, when he's home, his PC is on and being used a lot and most of the time the network is fine Also, the network went down this AM when the PC is hopefully asleep, so not sure if there's anything to my hunch Quote Link to comment Share on other sites More sharing options...
pinkoos Posted February 25, 2022 Author Share Posted February 25, 2022 On 2/4/2022 at 4:53 PM, Andrew luecke said: I think you're potentially taking the wrong approach here. 1. Network visibility is everything. Ensure every device is connected to the switch directly (do not daisy chain devices off other switches unless they are managed), and turn on STP, and DHCP Guarding (I can't remember if Araknis supports this). Turn off wireless on the router. STP prevents loops, DHCP guards protect against any devices which may be acting as Rogue DHCP servers. 2. Watch if there is a correlation between when the problems happen.. If the problems happen mainly on hot days or wet days, it's likely ISP. No, they probably won't find anything lol 3. You need to determine if the connection is dropping out at the router, or past the router. You can do a ping routerIP, and ping 8.8.8.8 (Google). If the router IP drops, router is busted.. if Google drops, it's internet. 4. You MAY have a IP Conflict as others have said. If you use ARP and the MAC address flips back and forth for an IP, it's definitely a conflict. Use DHCP reservations Honestly, if only some devices lose access to Internet, this sounds like a rogue DHCP server messing things up.. See attached screenshots Can any conclusions be drawn from this info? Quote Link to comment Share on other sites More sharing options...
ekohn00 Posted February 26, 2022 Share Posted February 26, 2022 14 hours ago, pinkoos said: See attached screenshots Can any conclusions be drawn from this info? If your router (192.168.1.1) goes down, you’ll never get to dns server (8.8.8.8) Quote Link to comment Share on other sites More sharing options...
pinkoos Posted February 26, 2022 Author Share Posted February 26, 2022 So this is showing that pinging the router directly shows it’s unreachable but pinging google still works so I’m confused as to what this is telling me Quote Link to comment Share on other sites More sharing options...
ekohn00 Posted February 26, 2022 Share Posted February 26, 2022 9 hours ago, pinkoos said: So this is showing that pinging the router directly shows it’s unreachable but pinging google still works so I’m confused as to what this is telling me my bad, I read it so fast I thought the 8888 was unreachable. you probably have a duplicate address or routing problem. Heck, you could have a FW rule to block on the router. I'd start simple and see if you can find the problem. If you have just the router and only a laptop(un plug all other connections) can you get it to work? Quote Link to comment Share on other sites More sharing options...
Andrew luecke Posted February 26, 2022 Share Posted February 26, 2022 On 2/26/2022 at 9:36 AM, pinkoos said: See attached screenshots Can any conclusions be drawn from this info? Your router is likely blocking Pings (so the test might be useless).. If ping's to your router are showing perfect though, it means its your internet connection. Quote Link to comment Share on other sites More sharing options...
pinkoos Posted February 26, 2022 Author Share Posted February 26, 2022 Pings to router when network down not going through Pings to google when network down going through but not sure why it’s also showing pings to the router when I entered 8.8.8.8 Thoroughly confused now LOL Quote Link to comment Share on other sites More sharing options...
msgreenf Posted February 26, 2022 Share Posted February 26, 2022 It could be going out cellular. Just based on all your posts, you seem to really struggle with a lot of basic network concepts. ICMP traffic is not a signature that the network is up or down. ICMP traffic can be filtered or blocked and many different places Andrew luecke 1 Quote Link to comment Share on other sites More sharing options...
pinkoos Posted April 2, 2022 Author Share Posted April 2, 2022 May have finally figured out the culprit, fingers crossed - Google Nest Hub After disconnecting my touchscreens over a week ago and the network still going out, my next step was to unplug our 2 Nest Hubs, we have a regular and a Max After doing that I also searched online and it seems they had an issue back in 2018 where the chromecast feature was overloading routers when the device would wake from sleep, I don’t remember all the technical terms Anyway, Google said they fixed the issue and in the meantime I think router manufacturers started pushing out firmware updates to prevent the issue This was 4 years ago so I would think that my devices would have already been fixed by Google and/or Araknis would have addressed this as well Regardless, though, all I know is that it’s been one week exactly since I unplugged the Nests and the network has been rock solid - hope I didn’t just jinx it My dealer is supposed to get in touch with the Araknis folks to see if they can shed any light on this too Just thought I’d share the (hopefully) good news, after almost 2 years (or possibly even longer…I can’t remember exactly when all this started) of dealing with this Quote Link to comment Share on other sites More sharing options...
msgreenf Posted April 2, 2022 Share Posted April 2, 2022 Doesn't really make sense. I have four Google nests hubs in my house on a rackney's network without issue Quote Link to comment Share on other sites More sharing options...
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