F1TV app not working without DNS refresh

[the_menace]

I have the F1TV installed on my android smartphone and an amazon fire TV stick.

When I connect to the wifi of my internet provider (24*8 DOC 3 WIRELESS(DOCSIS)) bothe apps work fine every time.

Same whe I connect through mobile data.

When using the wifi from my R7800 router it only works when I apply the current (or new) DNS settings again in the Advanced > Setup > Internet setup menu.

This isolates the rootcause to my R7800 router.

I have tried my ISP's and different other DNS settings, but they all stop working within a day.

I have played around with QoS and WMM settings, nothing seems to work.

My internet providers wifi coverage is insufficient to use as an alternative unfortunately.

How can I get the F1TV app working through my R7800 router continuously?

Thanks for your help.

TM

[FURRYe38]

What Firmware version is currently loaded?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?

Try enabling IPv6 on the router...

[the_menace]

@FURRYe38 

FW version is V1.0.2.90

Mdem: Eurodocsis 3.0 modem CH7465LG-TN

IPv6 is enabled, addresses assigned.

I just tested wit an old D-Link router, there it works immediately.

[FURRYe38]

What mode is your modem working in? Router or Modem only mode? 

Your ISP Modem already has a built in router and wifi. This would be a double NAT (two router) condition which isn't recommended. This would be a double NAT 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 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. https://kb.netgear.com/25891/DMZ-on-NETGEAR-routers
https://kb.netgear.com/24086/How-do-I-set-up-a-default-DMZ-server-on-my-Nighthawk-router
3. Or disable all wifi radios on the modem and connect the NG router to the modem, LAN to LAN configure AP mode on the NG router.

[the_menace]

Thanks for the reply Furrye38.

I can't bridge my modem but set up a DMZ. This is not working, need to figure out why.

Option 3 I don't want to do, why buy an expensive router...

I am curious why it work when I refresh my DNS and why it works on the D-link router?

[FURRYe38]

I would presume the double NAT condition is playing a role in this. Once you can get DMZ working on the host router, hoping this would solve it. Something I haven't seen with my R7800.