becker2325 Posted August 30, 2015 Share Posted August 30, 2015 My download is 35-45 and upload is about 5 and when things are working it runs great. Almost everyday when I get home from work my speeds are incredibly slow and I can only get 1 bars. When I test my connection on the ps4 my speeds are below 1 mbps both upload and download. I reset my router and that will usually fix it but then I have been losing connection mid game occasionally to. It has happened 3-4 times this month. I have a Motorola Surfboard connected to my netduma. Why is this happening? I love the router when it's working bit that seems to be about half of the time. Link to comment Share on other sites More sharing options...
becker2325 Posted August 30, 2015 Author Share Posted August 30, 2015 Just got 15 kbps down and 317.5 up Link to comment Share on other sites More sharing options...
PharmDawgg Posted August 30, 2015 Share Posted August 30, 2015 Motorola/Arris modems -there is some sort of bug that after steady usage the the ping starts to spike and the only way to correct it is to reboot the router. And the occurences are random so it can happen after one hour or one day. You never know. Supposedly the problem can be fixed with a firmware update but that this up to when Comcast pushes out one who knows when that will be. These two modems are built off of the Broadcom chipset. Motorola/Arris SB6141-- Is built based off of the Texas Instruments chipset. Should work fine but I can not confirm this. I had the SB6183 and I can confirm this. I think any other time the SB6121 and SB6183 would work fine but for some reason when the R! and the SB6183/6121 are in a setup together this bug is revealed. If you already have the SB6141 I would not purchased another modem. Use it for your setup with the Netduma but if you do start to have issues or if you haven't already got the SB6141 I would recommend the Netgear CM500. It is compatible with Comcast and works well the the higher tiers. It's about $90 on Amazon. Hope this helps. Link to comment Share on other sites More sharing options...
becker2325 Posted August 30, 2015 Author Share Posted August 30, 2015 I have the SB6121. Good to know it's not the router but that is still very frusterating. I guess I'll be getting a new modem. Thank you. Link to comment Share on other sites More sharing options...
PharmDawgg Posted August 30, 2015 Share Posted August 30, 2015 I have the SB6121. Good to know it's not the router but that is still very frusterating. I guess I'll be getting a new modem. Thank you.No problem. From what I read a firmware update would fix the Motorola/Arris issue but the ISP's usually do not push updates unless a mass quantity of people are having issues. If you would like a recommendation the netgears are pretty good. Goodluck and game on. Link to comment Share on other sites More sharing options...
becker2325 Posted September 5, 2015 Author Share Posted September 5, 2015 I got a new modem now and am running into the same problem just as often. I have the netgear CM500 and everything will be good and the all of the sudden the Internet DL speed drops from 50Mbps to <1 mbps and it happens every day. I reset the router and it goes back but it happens with both my SB6183 and Netgear modem and I never had any issues begone I got the r1 Link to comment Share on other sites More sharing options...
Zennon Posted September 5, 2015 Share Posted September 5, 2015 I can not find the post so do not quote me on this, the problem stems from an energy efficient Ethernet and there is an upcoming fix unless I am mistaken. Link to comment Share on other sites More sharing options...
becker2325 Posted September 5, 2015 Author Share Posted September 5, 2015 Do you happen to know when? Sorry if I disliked your reply. I'm not sure how the like/dislike works on this website. Thanks for the reply Link to comment Share on other sites More sharing options...
Zennon Posted September 5, 2015 Share Posted September 5, 2015 Found the quote Here FQs19 is having the same issue in the thread that holds that quote Full Thread here To me both modems are using this efficient Ethernet maybe? Link to comment Share on other sites More sharing options...
Netduma Staff Netduma Crossy Posted September 5, 2015 Netduma Staff Share Posted September 5, 2015 I got a new modem now and am running into the same problem just as often. I have the netgear CM500 and everything will be good and the all of the sudden the Internet DL speed drops from 50Mbps to I know you said that it only started happening since you got the Netduma but if you connect your old router to the CM500 to you have the issue? Link to comment Share on other sites More sharing options...
becker2325 Posted September 5, 2015 Author Share Posted September 5, 2015 I haven't tried that yet but I will when I get home. When I plug the modem directly into the PS4 there is no issue. Link to comment Share on other sites More sharing options...
FQs19 Posted September 5, 2015 Share Posted September 5, 2015 Hey Becker, If you log in to the modem at 192.168.100.1 ID= admin PASSWORD = password and click on Advanced tab then click on Modem Event log do you see T3 and T4 errors? Link to comment Share on other sites More sharing options...
becker2325 Posted September 6, 2015 Author Share Posted September 6, 2015 Yeah. I see both of those and also under the priority tab there is a lot of Critical (3) and the description says SYNC Timing Synchronization failure - failure to aquire QAM/QPSK. I would just post a picture but idk if any information on there would could be used to hit me offline or anything like that. Link to comment Share on other sites More sharing options...
FQs19 Posted September 6, 2015 Share Posted September 6, 2015 Well from my recent investigations I would assume that you also have a problem with the modem and it using Energy Efficient Ethernet. The only fix right now is to reset the modem when you start to get high pings, packet loss, and low download speeds. The next update will have an option to Disable Energy Efficient Ethernet. Link to comment Share on other sites More sharing options...
FQs19 Posted September 6, 2015 Share Posted September 6, 2015 I usually only have problems after downloading a large file through the R1. Those T3 and T4 errors are from the upload not being able to sync with the ISP headend. A modem restart works for a while. Link to comment Share on other sites More sharing options...
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