I'd like to know if anyone else has had this issue. All my connected devices lose the ability to download, but the DumaOS panel shows they are still uploading (blue bar graph instead of red). I often have to reboot the modem, router, or both to get it back to normal. This has been something that maybe happens every few months, but over the last 24h (and after switching to Gigabit internet), it's happened three times and I'm at my witts end. I'm using V2.3.2.40 firmware. Any suggestions or advice would be greatly appreciated.

Another quick update and then this topic can be closed. I lost internet connection again on the modem twice this morning, so I had the modem swapped out. One of the lights on the modem, which was a dark blue before, is now cyan, which is a good thing. So far so good, but I do not believe the router is at fault here - it just seems to report "uploading" on devices when there is no connection available. Maybe it's a bug, but it's probably too rare or out-of-sight for anyone to notice. Thanks for all the help.

What is the Mfr and model# of the ISP modem the NG router is connected too? Happens with both wired and wireless devices?

The modem is a Hitron CODA-4582U (DOCSIS 3.1) routing through the Netgear XR500 on the Rogers Canada Gigabit plan. The moden is a wifi modem, but that's all been disabled and it's routing everything through the XR500. When the problem happens, all devices, incuding wired, will only show as upload only.

Problem maybe with your modem. It has a built in router already. This would be a double NAT condition which isn't recommended. https://kb.netgear.com/30186/What-is-Double-NATCouple of options,1. Configure the modem for transparent bridge mode. Then use the NG router in router mode. You'll need to contact the ISP for help and information in regards to the modem being bridged correctly.2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ/ExposedHost or IP Pass-Through for the IP address the NG router gets from the modem. Please give #2 a try...

The first thing I did when I set the modem up is to put it into bridge mode, so it's currently acting only as a "dumb" modem and the router handles everything else. I've checked the logs on the modem and router and nothing seems out of the ordinary (i.e. no logs during the times when I experience this problem).

XR500: All devices suddenly loose the ability to download, but can still upload

11 Replies

FURRYe38
Guru - Experienced User
Jul 24, 2019
What is the Mfr and model# of the ISP modem the NG router is connected too?

Happens with both wired and wireless devices?
- ep2015
  Apprentice
  Jul 24, 2019
  The modem is a Hitron CODA-4582U (DOCSIS 3.1) routing through the Netgear XR500 on the Rogers Canada Gigabit plan.
  
  The moden is a wifi modem, but that's all been disabled and it's routing everything through the XR500.
  
  When the problem happens, all devices, incuding wired, will only show as upload only.
  - FURRYe38
    Guru - Experienced User
    Jul 24, 2019
    Problem maybe with your modem. It has a built in router already.
    This would be a double NAT condition which isn't recommended. https://kb.netgear.com/30186/What-is-Double-NAT
    Couple of options,
    1. Configure the modem for transparent bridge mode. Then use the NG router in router mode. You'll need to contact the ISP for help and information in regards to the modem being bridged correctly.
    2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ/ExposedHost or IP Pass-Through for the IP address the NG router gets from the modem.
    
    Please give #2 a try...
FURRYe38
Guru - Experienced User
Jul 24, 2019
Have your ISP check the singal and quality of there service up to the modem. Have them check there logs to see if they see any thing on there side when this happens on the modem.
- ep2015
  Apprentice
  Jul 25, 2019
  Another quick update and then this topic can be closed.
  
  I lost internet connection again on the modem twice this morning, so I had the modem swapped out. One of the lights on the modem, which was a dark blue before, is now cyan, which is a good thing. So far so good, but I do not believe the router is at fault here - it just seems to report "uploading" on devices when there is no connection available. Maybe it's a bug, but it's probably too rare or out-of-sight for anyone to notice.
  
  Thanks for all the help.
  - Netduma-Fraser
    NetDuma Partner
    Jul 25, 2019
    Great to hear that, thank you very much for the update!

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XR500: All devices suddenly loose the ability to download, but can still upload