Hub 3 - issues with Citrix

[dario82]

Hi everyone, 

I have had Virgin Media broadband for 6 months, and I am working from home by connecting via Citrix to my office virtual machine.

Everything was working fine at the beginning for four months, but in the past two months the connection to my work Virtual Machine via Citrix has been pretty awful. The connection is intermittent, in the sense that the connection is lost for 1-2 seconds every five seconds roughly, which makes working very annoying because it's like working when the connection has a strong lag.

The only thing that has changed in the past months is that we installed two smart TVs at home two months ago. So, there may be a correlation between the connection issues to Citrix and the smart TVs??

I checked with the IT department of my employer regarding the connection issue, and all is fine on their end. The issue is not the virtual machine.

Importantly, internet and the virtual machine works well when I connect to the office Virtual Machine via USB tethering from my phone instead of using the Virgin wi-fi/ broadband. And, unsurprisingly, when I tested the wifi speed in the room where my laptop is, the Virgin Media Connect app records a "great" connection. 

Also, the virtual machine works well when I connect to the Hub via an Ethernet cable and browsing the internet on my personal laptop works well when using the virgin media Wifi, it's only the work Virtual Machine that doesn't work well.

Anyway, it looks that the issue is either the interface Virgin Media/ Citrix when using the wifi, or how the wifi router allocates the internet band to the various devices connected ie. the TVs and the PCs.

I did notice a drop in performance on the virtual machine when I connect via Wifi and the TVs are connected to the wifi as well. However, problems persist even when the TVs are switched off.

Additional info: I have Windows 10, and have not installed any new firewall or antivirus in the past six months. 

What shall I do to improve the connection to the Virtual Machine via Citrix? And is it really not possible to have two smart TVs and laptop connected at the same time to the Virgin wifi Hub3?

Thanks for your help!

[Andrew-G]

TV connections won't make any difference, and I suspect given the timing you describe that it isn't a hub fault, but an over-utilisation problem.  And because of the way Citrix works (nasty, primitive throwback technology in my book) it is incredibly vulnerable to connections with poor latency.

If you want you can post the hub's status data and we can take a look for power or noise problems.  Connect to the hub by clicking on this link http://192.168.0.1/  That should pull up the log in page for the hub.  But don't log in, just click on the link "Check router status"  That'll bring up a window with five tabs.  Open the Downstream tab.  Select all the text (Ctrl-A if using a keyboard), copy it (Ctrl-C), then paste it (Ctrl-V) into a reply here.  Post that, do the same for the Upstream and Network log.  You'll get an error message when you post the Network log, just click on "post" a second time.

[dario82]

Thanks!

The link http://192.168.0.1/ returns me a 404 Page not found error.

The link http://192.168.0.1 without the "/" at the end, leads me to a login page, but there is no option to "check router status", unless I log in. When I tried to login, the options and tabs are different from the one you specify. 

Can you send again the link?

[Andrew-G]

Dodgy syntax on my part, sorry.  Are you sure that there's no small, white text that says "Check router status" from the log in page?  On a Hub 3, this is below the password entry field.  

[dario82]

well, it works now!

Downstream bonded channels

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

1	259000000	-0.7	38	256 qam	16
2	139000000	1.2	38	256 qam	1
3	147000000	0.7	38	256 qam	2
4	155000000	0.7	38	256 qam	3
5	163000000	0.4	38	256 qam	4
6	171000000	0	38	256 qam	5
7	179000000	-0.2	38	256 qam	6
8	187000000	-0.5	38	256 qam	7
9	195000000	-0.7	38	256 qam	8
10	203000000	-1	38	256 qam	9
11	211000000	-1.2	38	256 qam	10
12	219000000	-1.2	35	256 qam	11
13	227000000	-1	35	256 qam	12
14	235000000	-1	38	256 qam	13
15	243000000	-0.9	38	256 qam	14
16	251000000	-0.9	40	256 qam	15
17	267000000	-0.7	40	256 qam	17
18	275000000	-0.5	40	256 qam	18
19	283000000	-0.5	38	256 qam	19
20	291000000	-0.5	40	256 qam	20
21	299000000	0	40	256 qam	21
22	307000000	-0.2	40	256 qam	22
23	315000000	-0.7	38	256 qam	23
24	323000000	-1.4	40	256 qam	24

Downstream bonded channelsChannel Locked Status RxMER (dB) Pre RS Errors Post RS Errors

1	Locked	38.9	7	0
2	Locked	38.9	19	0
3	Locked	38.6	14	1498
4	Locked	38.6	21	0
5	Locked	38.9	7	0
6	Locked	38.6	8	0
7	Locked	38.9	12	0
8	Locked	38.9	12	0
9	Locked	38.6	8	0
10	Locked	38.9	27	0
11	Locked	38.9	6	0
12	Locked	35.7	286	0
13	Locked	35.5	8812	0
14	Locked	38.9	7	0
15	Locked	38.9	6	0
16	Locked	40.3	11	0
17	Locked	40.3	9	0
18	Locked	40.3	6	0
19	Locked	38.9	9	0
20	Locked	40.3	10	0
21	Locked	40.3	9	0
22	Locked	40.3	7	0
23	Locked	38.9	6	0
24	Locked	40.3	6	0

[dario82]

Upstream bonded channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

1	53700095	44.8	5120	64 qam	2
2	60300118	44.8	5120	64 qam	1
3	46200247	44.5	5120	64 qam	3
4	39400178	45	5120	64 qam	4

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	ATDMA	0	0	0	0
2	ATDMA	0	0	0	0
3	ATDMA	0	0	0	0
4	ATDMA	0	0	0	0

[dario82]

Time Priority Description

31/01/2021 15:02:32	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
31/01/2021 12:34:16	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
31/01/2021 12:33:59	Warning!	LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/01/2021 17:50:37	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/01/2021 17:49:53	Warning!	LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/01/2021 13:03:20	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/01/2021 08:00:56	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2021 08:04:39	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2021 08:04:39	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2021 08:04:39	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2021 08:04:38	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2021 08:04:38	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/01/2021 21:31:17	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:39	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
22/01/2021 16:55:14	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/01/2021 00:40:10	notice	SW download Successful - Via NMS
20/01/2021 00:38:30	notice	SW Download INIT - Via NMS
18/01/2021 09:08:1	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
16/01/2021 22:40:48	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/01/2021 11:46:24	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

[Anonymous]

This point for me means it's the WiFi, NOT the broadband, causing your issue:

@dario82 wrote:

Also, the virtual machine works well when I connect to the Hub via an Ethernet cable and browsing the internet on my personal laptop works well when using the virgin media Wifi, it's only the work Virtual Machine that doesn't work well.

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[dario82]

yes, I also think the wi-fi is the issue, or, more specifically, the way the router allocates bandwidth/ connection. However, I am not an expert and don't know how to solve this problem. 

[Anonymous]

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@dario82 wrote:

yes, I also think the wi-fi is the issue, or, more specifically, the way the router allocates bandwidth/ connection. However, I am not an expert and don't know how to solve this problem. 

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Well it could be a faulty HUB.

Do you have a good signal strength where your device is situated, when trying to connect to Citrix over WiFi?