W11cE Posted January 31, 2015 Author Posted January 31, 2015 I have had my modem and R1 on and connected now for 14 days without problems. Havent had problems after those 2 times. Just wanted to give my status update.
Guest Netduma_Iain Posted January 31, 2015 Posted January 31, 2015 Great news, I think Scott & you may be having different issues then
odog Posted January 31, 2015 Posted January 31, 2015 This is Owen with Cox Communications. lilstone87 asked me about this so I thought I would chime in with the information I had. We've seen similar things like this happen in the past, but on a different device/chip. The previous device used an Intel IPX based processor, but the symptoms we pretty much the same thing.(Cisco RV042) The latency would steadily increase as packets tranversed the modem until it got so bad the modem would need to be reset. We tried to reproduce it at our office but weren't able to. We didn't get that many examples, and with all the buttons/knobs in the configuration couldn't figure out the required scenarios to make it happen. The one common thing? It only happened on Broadcom based cable modems. If we switched the modem out to a TI/Intel based modem the issue doesn't happen. The fact that this is a QCA9344 only makes it more muddy as that is a much more common CPU. I'm not sure if switching to an Intel modem would help here, but I can offer this option. I can send lilstone a Intel based modem to fix him in the short term and validate this is the "same" Broadcom anomaly we saw before. The only ask is that you send us a R1, so we can troubleshoot this live from both directions. That way you can debug the R1 while we debug the modem. Hopefully that will allow us to crack what is happening with this issue.
Buds Posted February 1, 2015 Posted February 1, 2015 This is Owen with Cox Communications. lilstone87 asked me about this so I thought I would chime in with the information I had. We've seen similar things like this happen in the past, but on a different device/chip. The previous device used an Intel IPX based processor, but the symptoms we pretty much the same thing.(Cisco RV042) The latency would steadily increase as packets tranversed the modem until it got so bad the modem would need to be reset. We tried to reproduce it at our office but weren't able to. We didn't get that many examples, and with all the buttons/knobs in the configuration couldn't figure out the required scenarios to make it happen. The one common thing? It only happened on Broadcom based cable modems. If we switched the modem out to a TI/Intel based modem the issue doesn't happen. The fact that this is a QCA9344 only makes it more muddy as that is a much more common CPU. I'm not sure if switching to an Intel modem would help here, but I can offer this option. I can send lilstone a Intel based modem to fix him in the short term and validate this is the "same" Broadcom anomaly we saw before. The only ask is that you send us a R1, so we can troubleshoot this live from both directions. That way you can debug the R1 while we debug the modem. Hopefully that will allow us to crack what is happening with this issue. I'm a natural cynic, but I'll leave this to the Netduma crew to establish bona fides I hope you get it all sorted lilstone
Guest Netduma_Iain Posted February 1, 2015 Posted February 1, 2015 Hi odog, Thanks for responding, I'd like to pursue this further with Scott before we send any units out for testing. I could understand the issue being something like dodgy VLAN tagging or something at the physical layer. That would make sense to a certain degree. Any layer above that doesn't really add up. The only thing I could think of is MTU perhaps... but still that's at a stretch. However here's where it gets interesting. According to Scott the issue persisted with the following topology: Modem > Another Router > Netduma R1 If that is the case then it can't be the physical layer either so I'm very perplexed. I've got a few experiments I'd like Scott to try before I look into alternatives. Thank-you very much for the offer and taking the time to post here. Also I'll get Scott to keep you updated and we'll post back in this thread. PS I think its worth mentioning that we haven't spent that much time diagnosing this yet, as we've been understandably busy with other features due to our recent launch.
odog Posted February 1, 2015 Posted February 1, 2015 We didn't get very far with Cisco since we never able to reproduce it. So I'm hoping you guys will be able to crack it. In the end I think it is the same issue. That being said I don't think it is the R1 but more the modem reacting to the router attached to it. From the packet captures we did with the RV042 we couldn't see anything abnormal. I don't think it is phy layer, which seems to be reinforced by the double nat'ting when the Asus router in front of the R1. MTU is a possibility as the RV042 also has a hardware VPN feature which may put a dotq tag inside the VPN'd traffic.
Guest Netduma_Iain Posted February 1, 2015 Posted February 1, 2015 Thanks for the information odog. I'll either let you know how we resolved it or contact you in the near future about sending you a unit. Appreciate you taking the time to post on our forum, thats very kind of you. Hope you enjoy the super ball!
lilstone87 Posted February 1, 2015 Posted February 1, 2015 Thanks for the information odog. I'll either let you know how we resolved it or contact you in the near future about sending you a unit. Appreciate you taking the time to post on our forum, thats very kind of you. Hope you enjoy the super ball! I think you meant *Super Bowl* But we accept your apology in advance, as we know you guy's are from the UK
Guest Netduma_Iain Posted February 1, 2015 Posted February 1, 2015 wow I actually knew that, what was I thinking
W11cE Posted February 3, 2015 Author Posted February 3, 2015 Had this happening yesterday again . Time since last modem reset was 15,5 days.
Guest Netduma Fraser Posted February 3, 2015 Posted February 3, 2015 Had this happening yesterday again . Time since last modem reset was 15,5 days. Was it a factory reset you did or a reboot?
W11cE Posted February 3, 2015 Author Posted February 3, 2015 Reboot. Yeah, used a little wrong word there.
Guest Netduma Fraser Posted February 3, 2015 Posted February 3, 2015 Reboot. Yeah, used a little wrong word there. Haha no worries Can you try doing the factory reset please?
TheGreatDansby Posted February 4, 2015 Posted February 4, 2015 I've had these issues as well and have been speaking to Iain about them. Using ping plotter I have the same issues if the R1 is hooked up or if it's not. It appears there are many issues when tracing in the northeast, especially with google. Those ping spikes are massive ranging from 80-1500. I even ran a rest at my girlfriend's house who also has fios, and no R1 and it had the same spiking and packet loss issues. So after all the troubleshooting I did at multiple locations, I'm pretty confident that it's not the router that is giving us these enormous pings.
Zennon Posted February 4, 2015 Posted February 4, 2015 Must be very frustrating Dansby, I hope they sort it very soon for all you guys having this problem.
TheGreatDansby Posted February 4, 2015 Posted February 4, 2015 It is, but at the end of the day I have to take it for what it is and wait for it to be fixed. If it was a more direct problem I'd be more frustrated.
W11cE Posted February 4, 2015 Author Posted February 4, 2015 Haha no worries Can you try doing the factory reset please? Did that today. Doubt it will change anything. Did that already when I installed R1.
Guest Netduma Fraser Posted February 4, 2015 Posted February 4, 2015 Did that today. Doubt it will change anything. Did that already when I installed R1. Okay well see how it is and let us know Have you done an upgrade since the last reset you did?
W11cE Posted February 4, 2015 Author Posted February 4, 2015 You mean R1 fw upgrade? Yes, between these i upgraded from .6(pingass) to .7
Guest Netduma Fraser Posted February 4, 2015 Posted February 4, 2015 You mean R1 fw upgrade? Yes, between these i upgraded from .6(pingass) to .7 Yep! Okay well let us know what happens
W11cE Posted March 23, 2015 Author Posted March 23, 2015 Happened again today and before that on thursday. Looks like modem up time does not matter as i rebooted the modem on thurday few hours before that happened.
Guest Netduma Fraser Posted March 23, 2015 Posted March 23, 2015 Happened again today and before that on thursday. Looks like modem up time does not matter as i rebooted the modem on thurday few hours before that happened. Hey can you have a look at this please and see if it applies to you http://wiki.netduma.com/doku.php?id=why_do_i_have_insanely_high_pings
W11cE Posted March 23, 2015 Author Posted March 23, 2015 Nope, those were not loose. On trace ping is high between modem and the next hop. I have tried to ping 8.8.8.8 with my modem interface and there its also high ping.
Netduma Staff Netduma Crossy Posted March 23, 2015 Netduma Staff Posted March 23, 2015 Nope, those were not loose. On trace ping is high between modem and the next hop. I have tried to ping 8.8.8.8 with my modem interface and there its also high ping. Possibly an ISP issue then? If it is the modem and the next hop it is probably something wrong on their end and not something you can fix - although I may be wrong. Perhaps calling them and giving them your findings will get an engineer out who can fix your problem
W11cE Posted March 24, 2015 Author Posted March 24, 2015 Could be, but looks like R1 is the device that triggers it. Thats why Im talking about this problem here.
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