topic Re: Ping issue in Full Fibre

Ping issue

Eatpower — Tue, 18 Aug 2026 15:52:41 GMT

I am experiencing intermittent severe latency spikes and rubber-banding on my Plusnet Full Fibre connection. My normal latency is around 21–23 ms, but it intermittently rises significantly and causes real-time online games to freeze and rubber band.

I have carried out extensive troubleshooting at my own expense. I tested the installed Ethernet wall connection with an RJ45 network tester and all eight conductors pass correctly. I also completely bypassed the wall wiring with a separate 10 meter Cat6 cable and the same issue occurred.

The issue has also been experienced on more than one wired device in the household, so it is not isolated to one PC or network adapter.

I have now replaced my ASUS AX6000 router with a brand-new ASUS ROG Strix GS-BE7200 and used the new Ethernet cable supplied with it between the Openreach ONT and router. The new router was configured from scratch. Despite this, the high latency and rubber-banding have returned.

I have been using PingPlotter and recorded large latency spikes to external destinations such as 1.1.1.1, so the problem is not limited to one game server. Normal download speeds can still be achieved, so this appears to be an intermittent latency/jitter issue rather than simply a throughput problem.

Given the amount of internal equipment and cabling I have now eliminated, I would like Plusnet to investigate the FTTP connection, ONT and network side for intermittent errors, packet loss, latency/jitter or optical issues, and escalate to Openreach if appropriate.

Re: Ping issue

markhawkin — Wed, 19 Aug 2026 16:03:06 GMT

Set up a Thinkbroadband Broadband Quality monitor and see what that shows.

https://www.thinkbroadband.com/broadband-quality-monitoring

I assume you are using a cabled connection as WiFi will be prone to latency spikes however fancy the router is.

Re: Ping issue

bobpullen — Thu, 20 Aug 2026 09:09:50 GMT

@Eatpower wrote:

I tested the installed Ethernet wall connection with an RJ45 network tester and all eight conductors pass correctly. I also completely bypassed the wall wiring with a separate 10 meter Cat6 cable and the same issue occurred...

What's the situation with the wall wiring? Are we talking 'proper' structured cabling or are you using something like Powerline adapters (in which case all bets are off)?

Are you able to share your PingPlotter results?

@markhawkin's suggestion is a good one. You will need to configure your router to respond to pings/ICMP on its WAN interface (which I'm fairly certain the Asus kit permits).

Re: Ping issue

Eatpower — Thu, 20 Aug 2026 20:57:07 GMT

Hi, it’s a proper hardwired Ethernet run between faceplates, not Powerline. I bought a Philex Network Cable Tester and tested both Ethernet patch cables as well as the wall run/faceplates. Both patch cables and the hardwired run passed the full 1–8 sequence with no breaks or missing conductors.

I’ve also bypassed the wall run entirely with a separate long Cat6 cable and still reproduced the latency/rubber-banding issue.

I also tried to get an electrician who specialises in networking to inspect it, but the people I contacted were fully booked for around two weeks.

Re: Ping issue

Eatpower — Thu, 20 Aug 2026 21:08:43 GMT

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