Airtel IPv6 issues on Asus router bridged mode

  • Thread starter Thread starter deepakdcg
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@anmolbhard004 I don't use Bridge mode but I've tested 3 different setups with 2 different brands of router so far and every one of them have IPV6 issues.

Using a TP-Link as AP with LAN connection, forwards IPV6 packets for awhile, no issues and with full speed. Devices get IPV6 Addresses as well as an upstream DNS server.
IPV6 timesout after sometime, and then takes an hour or so to be back up and running again. This causes a lot of disruption particularly on my Android and iOS phones.

Same thing happens with the TP Link running as a WDS Bridge. Temp solution is to just disconnect and reconnect to the WiFi network. Perfect scores on www.test-ipv6.com then, for some time.

Another setup, used in a different place and connection altogether. I use a Beetel ADSL router as a repeater and here the repeater does not get IPV6 dns servers but broadcasts IPV6 addresses to devices. I get no IPV6 connectivity at all in the end.

I did notice this only happens with the Nokia G-2425G-A. The ZTE that we used previously was perfect.

If my devices are connected directly to the Nokia, there are no issues. Even during long uptimes(2+ hours)

I can't even bring this up to the local technicians because those guys don't even know what a "WiFi Channel" is. I don't think I can endure another session of trying to explain what IPV6 is and waiting for them only to factory reset my router lol 😭
 
oh wow so it might be my Asus router which is acting or the culprit. I have also noticed the Asus router has never received a FW update, its been on the same FW for 2 years now.

I will now have to check enabling IPv6 on another router and test if it works fine, unfortunately, even my AP is also a Asus router.

My ONT is Huawei which is fully unlocked by Airtel...

Thanks everyone for all ur inputs, I will check with another router and confirm
 
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one observation @SayantaN

If I disable bridge mode on my ONT and enable Automatic IP and also enable IPv6 via Passthrough on my Asus router, everything is working fine, IPv6 is working.

but if I enable bridge mode and setup IPV6 via native (DHCPv6) option, IPv6 works but the speed is inconsistent and almost unusable.

Also IPv6 works perfectly on my Huawei ONT router without Asus router being connected.
 
I am now very sure my Asus Wi-Fi6 AX1800HP router was the culprit... I might have found the solution

so, just for testing I swapped the below devices on my network
Main Router - Asus RT AX1800HP (WiFi 6)
Access point router - RT-AC58U (WiFi 5)

once the above devices were swapped, IPv6 is now perfectly working on the old (RT-AC58U WiFi 5) router which is connected via Bridge mode and Native IPv6 enabled, will stick to this setup for few more day's & monitor.



the AX1800HP hasn't received any firmware update and now it's just an AP for me, I can't use it for main Wi-Fi 6 connectivity since I have mounted it to the ceiling and the reception is not great. (my AP is mainly for Homelab and smart devices connectivity)
 
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