JioFiber Bufferbloat: 2024 vs 2026 but the lag spike is EXACTLY the same

  • Thread starter Thread starter raj17
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can anyone tell me that why loaded latency is still high in jio fiber. why ?

how can airtel or netplus or excitel or any other provider provide good loaded latencies and not jio ?
 
@Skye i have two pops near two me , delhi and meerut . Still this much high latency


Also one more thing , some sites like bbforum ,etc. loads faster when i use warp . Warp also loads youtube videos for me faster than normal internet.
 
@invisible007 @Skye

I did real testing to kill bufferbloat, and yeah it actually works, unlike the usual “try DNS / try reboot” garbage. The real issue is that Jio’s buffering is so bad that some websites straight-up treat your connection as trash. When the buffer fills, ACKs get delayed, servers think you’re a slow or unstable client, and they instantly throttle or drop the connection. That’s why some sites randomly don’t load or partially break. This is the core problem with Jio not DNS, not IPv6, not your browser.


Here’s the workaround that actually fixes it. - I used an old TP-Link router with basic QoS, connected behind the Jio ONT in full router mode (NOT AP mode). Yes, it’s double NAT and no, it does not matter in real life unless you’re hosting servers (which you can’t anyway because CGNAT/MAP-T). Stop worrying about double NAT; it’s a non-issue here.


First, on the Jio ONT, disable the useless junk: WPS ,Guest networks

Keep IPv6 ENABLED if you’re using JioJoin or Jio landline disabling IPv6 will just break calling services and make things worse.


Now the important part: On the TP-Link router, enable QoS and hard-cap bandwidth at ~90% of your actual speed, leaving ~10% headroom. That headroom is EVERYTHING. Without it, buffers fill, latency explodes, and Jio starts acting stupid again.


Then assign ALL actively used devices under that QoS rule. Don’t be lazy here. The moment traffic exceeds that cap, bufferbloat comes back and everything starts breaking again.


Also and this is not placebo LAN performs noticeably better than Wi-Fi. Either Jio applies fewer restrictions on wired traffic, or their Wi-Fi path is more aggressively shaped, DPI’d, or poorly queued. CGNAT, DPI, whatever something is clearly different. The point is: wired > wireless on Jio, every time.


Most important rule: Connect EVERYTHING to the TP-Link router, not the Jio ONT.
The Jio ONT has hidden QoS and traffic management that you cannot disable or tune, so the only way to win is to take queue control away from it.

This setup fixes the problem at the source. No VPN. No WARP. No tunneling.

VPNs only “help” because they mask traffic patterns they don’t fix buffering. This does.

I’ve also attached some screenshots to show how effective this is.

The first one is from the Cloudflare speed test PHOTO

and the second is from a bufferbloat testing site.
 
IPv6 will NOT work on TP-Link routers in this setup cause its normal mode . IPv6 remains active only on the Jio ONT, not on the TP-Link router.
So keep this in mind before following this method, especially if you rely on IPv6-dependent services like JioJoin or Jio landline.
 
@raj17 I use TP-Link XZ000-G3 V2 and Archer AX53 V2.

Browsing speed was surely affected in one of Jio routers, but my previous one was decent.

Also, the reason I am avoiding QoS is because, for some reasons, it starts slowing down web browsing for me after a while. Also, I got 300 Mbps plan and mostly it is just me downloading stuff, so I don't get affected often.
 
I use TP-Link XZ000-G3 V2 and Archer AX53 V2.

Browsing speed was surely affected in one of Jio routers, but my previous one was decent.

Also, the reason I am avoiding QoS is because, for some reasons, it starts slowing down web browsing for me after a while. Also, I got 300 Mbps plan and mostly it is just me downloading stuff, so I don't get affected often.
Click to expand...
That’s fair, @Skye and I agree not all Jio ONTs behave the same. Some models/firmware handle buffering much better, so it’s possible your previous unit didn’t show this issue as clearly.

About QoS slowing browsing: that usually happens when it’s mis-calibrated or left too dynamic. If the bandwidth cap isn’t strict (around 85–90% of real speed), queues still build up and QoS starts working against itself, which feels like gradual slowdown.

With a 300 Mbps plan and mostly single-user, download-heavy usage, bufferbloat won’t show up often unless the upload gets saturated. In that case QoS helps more with stability than raw speed. If your setup already feels consistent, there’s no real need to force it.
 
@raj17 nice information raj ,
Although i have seen people complaining a lot about JioAirfibre regarding speeds and red light issues etc. but Iam pretty much satisfied with AirFibre as of now , as iam getting exactly 30 mbps while downloading (they installed c6 as iam near to tower LOS) , surfing is pretty decent , with warp iam able to browse more faster . BUT the issue is while playing FreeFire (which my brother plays) , there is ping issues which we did not faced in excitel fibre connection .
as i saw in your screenshot it says online gaming is green tick and great so might be if i try your way of a secondary router may be i will get good pings in gaming as well . :)
 
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