topic Re: 1/4 speed in Full Fibre

1/4 speed

Huntleyroe — Mon, 06 Apr 2026 19:57:11 GMT

Im on full fibre 900 and the speed im getting is around 300 consistently, I believe this is well below the guaranteed speed.
Is there a plusnet moderator on here that can help with this?

Re: 1/4 speed

jab1 — Mon, 06 Apr 2026 20:05:06 GMT

Welcome to the forums, @Huntleyroe . How are you measuring this speed - on what device(s), wired or wireless, which speedtester?

Re: 1/4 speed

Huntleyroe — Mon, 06 Apr 2026 20:08:03 GMT

Hi.
I've used wifi and wired using pc, used plusnet speed test.
Wired does make it faster but still not anywhere near the speeds I should be getting.

Re: 1/4 speed

jab1 — Mon, 06 Apr 2026 20:12:22 GMT

Can you please attach a screenshot of the result from: https://www.speedtest.net/ , making sure it is wired and no other devices are using the connection at the same time?

Re: 1/4 speed

Dan_the_Van — Tue, 07 Apr 2026 06:21:20 GMT

@Huntleyroe

Are you using a Hub two?

The Hub two is WiFi 4 and WiFi 5; dependant on closeness to the Hub and WiFi adapter being used the maximum WiFi speed you will see will probably be in the range 300 to 500 Mbps with a 5GHz band connection.

It is recommended to perform a speedtest with a device connected directly to the router.

I would suggest sharing the speedtest result a link, rather than an image.

Re: 1/4 speed

Townman — Tue, 07 Apr 2026 08:30:47 GMT

@Huntleyroe

Can you be certain that the kit you are using can sustain 900mbps?

Unless the device is connected direct to the router using a CAT5e ethernet cable it is unlikely. By direct I mean using a proper 1Gbps Ethernet NIC, not a USB ethernet adapter...

As above, WiFi 5 is not going to do better than 300mbps in ideal conditions. WiFi 6 / 7 requires BOTH the router and the device to support the faster standard.

A USB 2.0 to Ethernet adapter has a maximum theoretical speed of 480 Mbps. In real-world, practical scenarios, this is limited by USB 2.0 protocol overhead to roughly 200–300 Mbps. While USB 2.0 can technically support higher speeds than Ethernet 10/100 adapters, the bottleneck remains the USB 2.0 bus.

A USB 3.0 Ethernet adapter typically provides a maximum speed of 1,000 Mbps (1 Gbps), known as Gigabit Ethernet. While the USB 3.0 standard supports theoretical speeds up to 5 Gbps, the adapter's speed is generally capped by the Gigabit Ethernet port. Real-world throughput is usually between 800-900 Mbps.

The above presumes that the device has the "guts" to drive USB 3 to its maximum.

What is the real world issue you are encountering here - how does this observation impact your use of the service. It is more than likely that you will not on a single device be able to use all that you are paying for; indeed without a high end set-up many users are paying for more than they can every use ... which is not the same as not getting what you are paying for.

Have a read of this - how fast is wifi speed supposed to be on 2.4ghz and 5ghz with 1 gig service? : r/wifi - Also do not confuse connection speed with connection / data throughput, they are not the same. "Speed" tests are actually data throughput tests.

Re: 1/4 speed

pvmb — Tue, 07 Apr 2026 09:03:46 GMT

@ "Have a read of this - how fast is wifi speed supposed to be on 2.4ghz and 5ghz with 1 gig service? : r/wifi "

"450 Mbps on 2.4GHz is absolutely not going to happen. the max PHY on a 2-stream 802.11n MIMO client is going to be 173.3 Mbps, which means that under ideal conditions your throughput might occasionally break 100Mbps. 802.11ax will get you up to 286.8 Mbps."

That's interesting. That 173.3 Mbps is exactly the link speed I get on my little TP-Link T3U AC1300 USB 3 adaptor, when on 2.4GHz, with download speeds around 50 - 90Mbs (it varies quite a bit if on 2.4GHz). The spec did mention 400Mbps on 2.4GHz - which I have never seen! Whereas, on 5GHz I have occasionally seen a link speed up to the specified maximum of 867MHz. I don't know what the maximum possible data rate is on 5GHz, I always measure 150Mbps on test which is the limit speed of the package I am contracted on.

Re: 1/4 speed

Townman — Tue, 07 Apr 2026 09:02:28 GMT

@pvmb wrote:

I don't know what the maximum possible data rate is on 5GHz, I always measure 150MBps on test which is the limit speed of the package I am contracted on.

Bytes (MBps) or Bits (mbps) often confused when looking at figures reported by file transfer applications.

@Huntleyroe - also note that with the Hub2 the 2.4GHz and 5GHz bands cannot be separated, so at any given point in time, you cannot be sure which WiFi band your device is using.

Re: 1/4 speed

Huntleyroe — Tue, 07 Apr 2026 09:27:56 GMT

Ty all for your help with this.
I will do the speed test when I get home tonight.
If plusnet have provided the hub 2 shouldn't it be capable of the speeds that they guaranteed I would get?
A lot of the comments are saying about limited speed on the equipment

Re: 1/4 speed

Huntleyroe — Tue, 07 Apr 2026 19:09:47 GMT

The following images were taken on 4 speed tests on a wired connection, as i said my speed is a lot lower than the guaranteed speeds and also noticed occasional high ping, now my connection seems to be dropping randomly aswell.

Possible unstable connection?

Re: 1/4 speed

jab1 — Tue, 07 Apr 2026 19:39:30 GMT

@Huntleyroe I'll leave the speed explanation to @Dan_the_Van / @Townman - they have more knowledge/experience than me.

You say 'now my connection seems to be dropping randomly aswell.' How are you determining this?

Re: 1/4 speed

Huntleyroe — Tue, 07 Apr 2026 20:14:04 GMT

Internet literally drops out, games disconnect and i have to wait for pc to re establish connection.

Re: 1/4 speed

jab1 — Tue, 07 Apr 2026 20:19:42 GMT

Assuming you are using a Hub2, can you please export the event log and attach the resulting csv file to your next post?

Re: 1/4 speed

Huntleyroe — Wed, 08 Apr 2026 06:16:38 GMT

Im sorry but I don't know what that is or how to get it.

Re: 1/4 speed

jab1 — Wed, 08 Apr 2026 06:52:08 GMT

To obtain the log : log into the router, navigate to the page in the screenshot attached and click the 'export' button.

Re: 1/4 speed

Dan_the_Van — Wed, 08 Apr 2026 12:21:38 GMT

@Huntleyroe

It is important the WiFi connection is disconnected or disabled on your laptop for the speedtest when performing a wired test.

Can you confirm if the laptop has an onboard LAN interface or are you using a USB dongle, if yes is it a USB 2 or 3 device.

This powershell command (Windows key +R, type powershell, hit enter) will reveal the adapter hardware you are using and the link speed.

Get-NetAdapter | select InterfaceDescription, LinkSpeed

Here is an example output

PS C:\> Get-NetAdapter | select InterfaceDescription, LinkSpeed InterfaceDescription LinkSpeed -------------------- --------- Realtek PCIe 2.5GbE Family Controller 1 Gbps Intel(R) Wi-Fi 6 AX200 160MHz 0 bps Realtek USB GbE Family Controller 1 Gbps

Re: 1/4 speed

Huntleyroe — Sat, 18 Apr 2026 12:13:23 GMT

i have attached the event log as requested. we are still having issues of disconnection at random times.

Re: 1/4 speed

jab1 — Sat, 18 Apr 2026 12:48:46 GMT

@Huntleyroe A quick look at that log shows your LAN1 port is only connecting at 100Mbps, rather than the expected 1Gb, which possibly accounts for your low speeds, and you have a number of wireless devices dropping in and out on a regular basis very various reasons.

Unfortunately, I'm no network expert, but maybe @Dan_the_Van or @Townman may have some further thoughts?

Re: 1/4 speed

MisterW — Sat, 18 Apr 2026 13:24:17 GMT

@Huntleyroe I can't see many WAN (Internet) disconnections , the last one was 3rd April when (apparently) the router was manually restarted.

As @jab1 says there's many wireless connect/disconnects. The 100Mb wired connection is likely a TV, they tend to only have 100Mb network ports. Also it connects/disconnects in the early hours which is typical of a TV waking up from standby to check for updates.

Re: 1/4 speed

Huntleyroe — Sat, 18 Apr 2026 13:50:30 GMT

Can see the log shows wifi disconnects, maybe wifi is dropping but router is on?
Definitely losing connection on pc's, just happened again.