cancel
Showing results for 
Search instead for 
Did you mean: 

Full Fibre 500 not reaching estimated speed

dln6376
Dabbler
Posts: 11
Thanks: 1
Registered: ‎21-03-2021

Full Fibre 500 not reaching estimated speed

I’ve switched to FF500, my estimated speed is 500Mbps to 550Mbps.

I’ve been regularly testing the speed using my laptop connected directly to the hub with an Ethernet cable, the result is consistently 450Mbps to 460Mbps

This is the first instance I’m reporting the issue, its is my intention to cancel the contract on 4th April if the speed doesn’t increase to within the estimated range.
17 REPLIES 17
jab1
The Full Monty
Posts: 20,122
Thanks: 6,671
Fixes: 297
Registered: ‎24-02-2012

Re: Full Fibre 500 not reaching estimated speed

@dln6376 I am not an expert on this, but have you considered it may be a limitation of your equipment? What do you get if you set up a direct PPOE connection between the ONT and your laptop?

Also note that if you cancel your contract without good cause, you will be hit with hefty Early Termination Charges.

John
dln6376
Dabbler
Posts: 11
Thanks: 1
Registered: ‎21-03-2021

Re: Full Fibre 500 not reaching estimated speed

I’m not an expert neither, I’m performing the test as directed by Plusnet in the past.

jab1
The Full Monty
Posts: 20,122
Thanks: 6,671
Fixes: 297
Registered: ‎24-02-2012

Re: Full Fibre 500 not reaching estimated speed

I merely suggested there could be an equipment related issue, and a possible solution. Maybe someone with more FTTP experience will respond with further help if you need it.

John
outcast
Seasoned Pro
Posts: 486
Thanks: 187
Fixes: 9
Registered: ‎11-01-2025

Re: Full Fibre 500 not reaching estimated speed

In addition to @jab1 's suggestion of connecting your laptop directly to the ONT using PPPoE network settings,

also try a variety of different speed testers, as not all of them have the bandwidth capacity for testing higher speeds.

 

I'm on 80/20Mbps VDSL and usually see considerably under reported speed test results using the Ookla Speedtest,

but most other sites (for me) give representative numbers.

.

jab1
The Full Monty
Posts: 20,122
Thanks: 6,671
Fixes: 297
Registered: ‎24-02-2012

Re: Full Fibre 500 not reaching estimated speed

Slightly OT, @outcast , but Ookla works perfectly for me on my FTTP 100 service. I suggest the OP tries the TBB speedtest, as I understand that will easily deal with the speed : https://www.thinkbroadband.com/speedtest

John
outcast
Seasoned Pro
Posts: 486
Thanks: 187
Fixes: 9
Registered: ‎11-01-2025

Re: Full Fibre 500 not reaching estimated speed


@dln6376 wrote:

I’ve switched to FF500, my estimated speed is 500Mbps to 550Mbps.
... ...
I’ve been regularly testing the speed ... ... the result is consistently 450Mbps to 460Mbps
... ...
... its is my intention to cancel the contract on 4th April if the speed doesn’t increase to within the estimated range.

 

Good luck with that !, 

you'd have to be below the product's "275Mb minimum guaranteed speed" to cancel without penalties.

 

Plusnet Full Fibre 500.png

dln6376
Dabbler
Posts: 11
Thanks: 1
Registered: ‎21-03-2021

Re: Full Fibre 500 not reaching estimated speed

The Ofcom Voluntary Code states that providers must give accurate estimates. My estimate was 500Mbps to 550Mbps, so it’s debatable if my estimate can be considered accurate when I’m only receiving 450Mbps.
dln6376
Dabbler
Posts: 11
Thanks: 1
Registered: ‎21-03-2021

Re: Full Fibre 500 not reaching estimated speed

Having re-contracted I’ve entered into a new 24 month contract, I’m assuming this comes with a 14 day cooling off period which will enable me to cancel and leave Plusnet…

…or would I simple revert to my old contract which still had 18 months to run.
outcast
Seasoned Pro
Posts: 486
Thanks: 187
Fixes: 9
Registered: ‎11-01-2025

Re: Full Fibre 500 not reaching estimated speed

Where would you leave to ?

If you go to another ISP that uses Openreach FTTP, then you'll likely have the same speed issue there.

Do you have an AltNet provider that can run FTTH to your home ?

.

dln6376
Dabbler
Posts: 11
Thanks: 1
Registered: ‎21-03-2021

Re: Full Fibre 500 not reaching estimated speed

I may as well join another provider on their 150Mbps or 300Mbps offering.

Additionally I’m not particularly impressed with plusnet customer service. I was on hold for a very long time earlier and eventually had to end the call, and I’m still waiting for a reply to my messages sent this morning on the X platform.
outcast
Seasoned Pro
Posts: 486
Thanks: 187
Fixes: 9
Registered: ‎11-01-2025

Re: Full Fibre 500 not reaching estimated speed


@dln6376 wrote:

... I’m not particularly impressed with plusnet customer service. I was on hold for a very long time earlier and eventually had to end the call, and I’m still waiting for a reply to my messages sent this morning on the X platform.

 

I was going to give my jaded view, which led me to leave Plusnet two years ago.

Instead I asked an online A.I. what the perception of Plusnet customer support is - as seen from the wider internet.

This is what it said -

Plusnet has consistently won awards for customer service—think Uswitch’s Best Customer Service (2018, 2021, 2023, 2024) and Expert Reviews’ Best Customer Service (2023)—often praised for its UK-based support and high satisfaction rates (e.g., over 70% in 2023 surveys). These awards are typically based on broad customer feedback, industry judging, or public votes, suggesting that, on average, Plusnet delivers a positive experience to many users. However, a vocal subset of customers reporting significant struggles, raises questions about inconsistency or underlying issues.

One explanation could be **resource strain**. Plusnet, owned by BT, relies on Openreach for infrastructure, and any delays or faults (common gripes on forums) often fall outside their direct control. If Openreach is slow to fix lines or activate services, Plusnet’s support team can only do so much, leaving customers frustrated. Couple this with potential staffing shortages—hinted at in reviews mentioning long wait times (30-45 minutes) or claims of “recruiting new staff”—and response capacity might be stretched thin, especially during peak demand or outages. The “unanswered calls” and “ignored Twitter support” could reflect this, where volume outpaces available agents.

The perception of “untrained staff” might stem from **specialization gaps**. Customer service reps are often trained for common issues—billing, basic troubleshooting—but complex technical problems (e.g., DNS failures or router configuration) might exceed their scope. If Plusnet leans heavily on scripted responses or escalates technical queries to a small pool of experts, delays and unhelpful interactions could pile up, leaving users on forums or helplines feeling neglected. Forum posts often amplify these cases because dissatisfied customers are more likely to vent publicly than satisfied ones are to praise.

Another angle is **channel overload or mismanagement**. Plusnet pushes multiple support avenues—phone (0330 1239 123, 8am-8pm), Twitter (@Plusnet), the Community Forum, and online tickets. If Twitter is “largely ignored” or forum staff are unresponsive, it might indicate poor prioritization or monitoring. Social media and forums require active engagement, and if Plusnet’s shrunk its digital team or shifted focus to phone support (where awards data often comes from), these platforms could languish. The “few support staff” reports suggest a lean operation, possibly a cost-saving move by BT, which could explain why responses feel inadequate.

Yet, the awards tell a different story. They’re not flukes—Uswitch and Expert Reviews rely on real data, like satisfaction surveys or resolution rates. This suggests Plusnet’s service shines for many (e.g., quick fixes for simple issues) but falters for edge cases or persistent problems—like those dominating forums. A 70% satisfaction rate still leaves 30% unhappy, and that minority can be loud online. Plusnet’s own Quality of Service reports (available on their site) might dodge these specifics, focusing on metrics like call answer times (historically decent) rather than resolution quality or forum engagement.

So, how do I explain this disconnect? Plusnet likely excels at broad, straightforward service—enough to win awards—but struggles with scalability, technical depth, or outlier issues. Staff may be trained enough for the basics, but not equipped (or numerous enough) for the complex, vocal complaints seen on the forum. Operational hiccups, reliance on Openreach, and possible underinvestment in digital channels could widen the gap. The awards reflect a polished average; the forum reflects the messy edges. Both can coexist—Plusnet’s not lying about its wins, but it’s not fully addressing the pain points either.

 

Townman
Superuser
Superuser
Posts: 24,747
Thanks: 10,633
Fixes: 183
Registered: ‎22-08-2007

Re: Full Fibre 500 not reaching estimated speed


@dln6376 wrote:
The Ofcom Voluntary Code states that providers must give accurate estimates. My estimate was 500Mbps to 550Mbps, so it’s debatable if my estimate can be considered accurate when I’m only receiving 450Mbps.

You are not able to determine if this is or is not being delivered, unless you really do have the kit capable of fully exploiting the service speed all on its own.  Generally FTTP is on or it is off and it works at its provisioned speed.

FTTP data test speeds not as expected

There have been numerous reports of measured data speeds not fulfilling users' expectations of their shiny new FTTP service. An end-to-end data speed test is a somewhat blunt instrument with which to test the connection speed. In most instances the FTTP service is running at the product's connection speed, but the user's environment or the data speed test service cannot make full use of (saturate) the FTTP connection's bandwidth.

We can no longer have confidence that the cause of slower-than-expected data transfer speed is due to the broadband connection's performance. If there is any doubt that the user's technology, infrastructure or chosen test service cannot make full use of the FTTP link's bandwidth, then a data speed test is likely to deliver misleading results.

Here are a few things to consider / investigate...

  1. Is the ethernet cable between the router and the ONT (Optical Network Terminator) CAT5e or better?
    CAT5 or below will not transfer data faster than 100mbps thus a simple cable could be the cause of slow data speeds. The ethernet link rate between hub and ONT can be observed in the Hub Two GUI under 'Status'. This is a good indicator of router <> ONT cable function.
     
  2. Is the device on which the data speed test is being run connected over (CAT5e) ethernet cable (not WiFi)?
    A device connected over 2.4GHz WiFi absolutely will not get anywhere close to 300mbps. It will typically be less than 100mbps. Typical 'good' 5GHz performance using the Hub Two is likely to be below 500mbps and will get lower the further away the device is from the router. More optimal Wi-Fi performance is possible but involves sourcing your own third-party equipment that is capable of the newer standards. Also Wi-Fi performance is equally dependent on the type of device and the age of its technology standards. Some older devices do not support 5GHz, even the most recent smartphones only have a 2x2 antenna array, which limits the number of concurrent Wi-Fi streams. The Plusnet Hub Two can use more streams (go faster), but most types of device cannot.
     
  3. Is the device on which the data speed test is being run connected over (CAT5e) ethernet cable with no intermediary devices (like Powerline adapters, switches and physical ports) on the LAN side?
    Irrespective of cabling, if there is a 10/100 ethernet switch in the chain then it is going to bottleneck things. Similarly Powerline adapters are highly unlikely to be able to pull anywhere close to 300mbps through electrical wiring. Many Powerline adapters that are rated at e.g. 500mbps, actually have only 10/100 ethernet ports which means the advertised speeds are near fiction.
     
  4. There are no other devices active on the network at the time of the test.
    Other concurrent use of the network will reduce the bandwidth available for the data speed test, thus delivering a misleading result.
     
  5. If on a static IP or using the Plusnet firewall (configured in the user portal) has the Plusnet IP profile updated?
    Data speed tests performed soon after the service has been connected (but before Plusnet's systems have updated) might be constrained by the account's line speed profile. Disconnect the router from the ONT, wait a short while, reconnect then check that the Current Line Speed (Download) reported in PN Broadband Status reflects the FTTP product's profile.
     
  6. If using a third party router ensure that QoS (Quality of Service) and other traffic shaping tools are disabled.
    QoS and other tools have been seen to cause havoc with attempting to saturate FTTP links. Prioritisation and QoS features are very processor intensive and can (probably will) significantly bottleneck speeds. Notably there have been numerous reports of Netgear Orbi maxing out at 550mbps when connected direct to the ONT, rather than being connected to a Plusnet Hub Two.
     
  7. Is the test device configured to use any VPN or corporate intranet connection?
    VPNs and corporate intranets can also be potential bottlenecks.
     
  8. Is the data speed test device capable of moving the data at FTTP speeds?
    Some kit simply does not have the power to make full use of FTTP connection speeds. Whilst undertaking data speed tests, if running on MS Windows, use Task Manager's performance tab to check throughput limitations do not arise from...
    • CPU performance
    • Disk read/write speeds - FTTP will easily outpace a 5400 rpm disk
    • Memory utilisation - the data has to go somewhere!
    • Network performance - unless the machine is reasonably new, the ethernet port will be limited to 100mbps!!
       
  9. Speed test service
    Not all speed test services are dependable nor consistent, so run some comparable tests on different speed test services, at different times of day and night (both on and off-peak) where possible. The following are good points of reference.

Please check out the above factors, to ensure that the perceived data speed is not compromised by some other factor limiting the data throughput-speed of your full-fibre FTTP.

~~~~~~~~~~~~

A user has observed that different devices ran at different speeds and their problem was discovered to be the LAN card settings on their Laptop...

My PlayStation was connecting at around 535mbs all the time, but the laptop was only running about 130mbps max. On checking the internet settings I found that speed and duplex were set to auto. I changed this to 1 Gigabit and now the test speed is 838mbps.

To find the settings for your ethernet adapter, go to advanced after selecting properties.

 

 

Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.

krusty
Rising Star
Posts: 114
Thanks: 18
Registered: ‎09-08-2017

Re: Full Fibre 500 not reaching estimated speed


@dln6376 wrote:
I’ve switched to FF500, my estimated speed is 500Mbps to 550Mbps.

I’ve been regularly testing the speed using my laptop connected directly to the hub with an Ethernet cable, the result is consistently 450Mbps to 460Mbps

This is the first instance I’m reporting the issue, its is my intention to cancel the contract on 4th April if the speed doesn’t increase to within the estimated range.

have you tried a new cable.

have you tried a direct ont connection.

have you tried another computer

have you registered it as a fault

PN will ask you all of these things if you decide upon yourself to cancel

Are you aware when you start to hit 500mbits plus connection they will sometime not hit the required speed, as a) the server you use may be slow and b) you are sharing a 2.5gbits/1.25 connection with up to 30 other people.

 

krusty
Rising Star
Posts: 114
Thanks: 18
Registered: ‎09-08-2017

Re: Full Fibre 500 not reaching estimated speed

@Townman  you have written

 

"Disk read/write speeds - FTTP will easily outpace a 5400 rpm disk"

that would be partially incorrect as an 80mbit fttp connection would not saturate a 5400 rpm hdd. Modern 5400 rpm hdds cope with 1gbit connections. Fragmentation may cause slower writes. Older drives with no or small caches may not