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Dayvey
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Gig1 Slow Speeds - Always around 500Mbps

Hi,

In the past week I have been upgraded to Gig1 fibre with Virgin and since then I haven't been seeing anywhere near the speed it should be.

Speed tests taken across 4 devices (2 PCs, S21 Ultra 5ghz, ASUS router) all show between 400 - 500 Mbps. I've had an engineer visit and replace the cables in my house and replaced the Hub 4 but still no improvement. On SamKnows it states that 920 Mbps is getting to the router but to the PC only showing 96 Mbps. One PC is connected via 30m Cat5e and network adapter showing 1 Gbps connection, and the second PC is connected via 1m Cat6a with network adapter showing 1 Gbps connection.

Below are the power stats from the Hub 4, could someone advise if these are within normal range as I can't think what else the issue could be

 

3.0 Downstream channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

253307500007.540.4QAM25625
11387500008.940.4QAM2561
21467500009.340.4QAM2562
31547500009.640.4QAM2563
41627500009.440.4QAM2564
5170750000940.4QAM2565
61787500008.940.4QAM2566
71867500008.740.4QAM2567
81947500008.640.4QAM2568
92027500008.240.9QAM2569
102107500008.340.9QAM25610
112187500007.940.9QAM25611
122267500007.940.9QAM25612
132347500007.840.9QAM25613
142427500008.140.4QAM25614
152507500007.940.4QAM25615
162587500008.340.4QAM25616
172667500008.440.4QAM25617
182747500008.640.9QAM25618
19282750000940.9QAM25619
202907500008.940.4QAM25620
212987500008.840.4QAM25621
223067500008.240.4QAM25622
233147500007.840.4QAM25623
243227500007.540.4QAM25624
263387500007.340.9QAM25626
273467500007.440.9QAM25627
283547500007.440.4QAM25628
293627500007.540.4QAM25629
303707500007.440.4QAM25630
313787500007.440.4QAM25631
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Dayvey
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Re: Gig1 Slow Speeds - Always around 500Mbps

Additionally

 

3.1 Downstream channels

Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)

33Locked427.549988990
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Andrew-G
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Re: Gig1 Slow Speeds - Always around 500Mbps

High 80s to mid 90s speeds suggest that somewhere the ethernet protocol is dropping back to 10/100 rather than 100/1000.  It's not clear from the description if you're running in modem mode, if you are then it points to the cable between hub and your own router?

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Dayvey
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Re: Gig1 Slow Speeds - Always around 500Mbps

Hi,

Thank you for your reply, this happens in both Router and modem mode.

In modem mode I have the Hub4 connected via Cat6 to an Asus RT-AC88U, with the Cat5e and Cat6a cables going from that to my devices. But I have also tried the same cables in Router mode connected directly to the Hub4

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Dayvey
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Re: Gig1 Slow Speeds - Always around 500Mbps

This is from the ASUS hub, showing that WAN is Gigabit and both PCs connected on 1 and 2 are also gigabit, LAN 3 and 4 are my PS5 and Smart TV respectively

Dayvey_1-1634657246559.png

 

 

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Dayvey
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Re: Gig1 Slow Speeds - Always around 500Mbps

This issue has now been solved, I gave my PC a fresh install of Windows this morning and speed tests are now showing in the 900+ Mbps range

Issue must have been caused by some legacy setting somewhere within Windows that capped the speed

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Serena_C
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Re: Gig1 Slow Speeds - Always around 500Mbps

Hi @Dayvey

 

Thanks very much for getting back to us to keep the thread updated. I'm really glad to hear that the issue has now been solved and you are enjoying superfast 900+Mbps speeds now.

 

If you experience any further issues please do get in touch.

 

Kind regards,

Serena