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tequillakilla's avatar
tequillakilla
Aspirant
Dec 23, 2021
Solved

Still connection loses and buffer overflows

In the meantime I've almost got used to the fact that the WiFi disappears for a few minutes every evening, only to return after what feels like an eternity. The fact that I reset the devices to the ...
tequillakilla's avatar
tequillakilla
Aspirant
Jan 03, 2022

Since there is unfortunately no fiber optic cable in my street, I use a gigabit connection via my cable provider. He made the SAGEMCOM F @ ST3890 V3 BBN available to me. I deactivated the built-in WLAN and only use this device as a converter from antenna cable to Ethernet, as well as for landline telephones. The reliability of the cable provider is very high and I have a problem with it once every three to six months on average. As a rule, this is easy to find out because the WiFi signal is strong but no internet works. A restart of the SAGEMCOM is then sufficient to fix the problem.

 

With regard to my ORBI RBR850 problem, the system has actually been running without a single dropout since I made the suggested adjustments. Thank you for the valuable information!
I am now curious whether something will change in this situation after 6-8 weeks, that was always the critical mark for a reset to the factory settings.

FURRYe38's avatar
FURRYe38
Guru - Experienced User
Jan 03, 2022

Thanks for the info. This Sagecom is a gateway modem. Your ISP Modem already has a built in router and wifi. This would be a double NAT (two router) condition which isn't recommended. https://kb.netgear.com/30186/What-is-Double-NAT
https://kb.netgear.com/30187/How-to-fix-issues-with-Double-NAT
Couple of options,
1. Configure the modem for transparent bridge or modem only mode. Then use the Orbi 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 Orbi router gets from the modem. Then you can use the Orbi router in Router mode.
3. Or disable all wifi radios on the modem and connect the Orbi router to the modem, configure AP mode on the Orbi router. https://kb.netgear.com/31218/How-do-I-configure-my-Orbi-router-to-act-as-an-access-point and https://www.youtube.com/watch?v=H7LOcJ8GdDo&app=desktop 

 

I would recommend configuring option #2 for the RBR to ensure it has a good connection to the internet thru this modem.

 

Hopefully the suggestions witll help as well. 

Be sure to save off a back up configuration to file for safe keeping. Saves time if a reset is needed.
https://kb.netgear.com/000062080/How-do-I-back-up-the-configuration-settings-on-my-Orbi-WiFi-System
Enjoy. 📡

 

 

  • tequillakilla's avatar
    tequillakilla
    Aspirant
    Jan 04, 2022

    Thank you very much for the links and the explanations, currently I don't have these problems because my provider discussed with me beforehand how I would like to use the cable connection and the SAGEMCOM is only operated as a cable modem.

    Nevertheless, it is good to know and understand that!