Bandwidth being restricted

Speed test the VM  service to the VM Hub using the link below :

https://www.samknows.com/realspeed/

Once the test begins click on: Run full test to include: Latency, Jitter, Packet loss & Upload speed

Post a screen shot of the full test so we can see what is occurring.

Sounds like your devices are getting stuck on the slower 2.4 GHz band and should be on the 5 5GHz one.

Have a read through this old post of mine have a look to see if thats the case

\_____________________________

If you haven't done this already - try it first - it helps sort some Hub3/4/5 wifi issues for some devices.
Go into the Hub’s settings.  Type in  http://192.168.0.1  into your web browser’s url box and login with settings password on the Hub's base sticker (or your own if you changed it).  Then in Advanced>wireless signal >smart wifi - tick the disable “channel optimisation” box or the“Smart Wifi” box and save settings.  May be different pathways and wording on the 3 Hub types

Then, go to advanced>wireless signal>security, rename the 2.4 & 5 GHz network ssid's.  Just type over to change 'em to whatever you like and something that will differentiate them (e.g - Billybob_2 & Billybob_5)   Try to avoid spaces and periods in the SSID names as they can cause issues with certain devices.  Use the same password for simplicity,  Then, apply settings and restart the Hub.  Your 2 wifi networks will now be clearly separated - and you can then select the network you want each device to connect to… individually from the "available networks" list on each of your devices. 
                                                                                                               
Note all your wifi devices will need re-connecting to the new SSID's and passwords.
All things being equal, 5 GHz is always better/faster and subject to less congestion/interference (and is better for iDevice speeds  than the 2.4 one - although the 2.4 one has the better "range" and will be needed when the 5 GHz drops out of range  and some older/cheaper/dumber or “specialised” devices can only use this one.  

You should also use a wifi analyser App (or Airport Utility on iOS) to check which 2.4 channels are being heavily used around you and move yours to one of numbers 1,6,11 that is least so, but it wont help if there is other interference.
See if these changes help - you will lose any “seamless roaming” benefits but it may not matter and you can always change the settings back by doing a " pinhole factory reset " if you prefer the way it was - or it doesn’t help.   
    The final solution. that many of us on here adopted many years ago, is to stick the Hub3 into modem only mode and get your own higher quality wireless router - decent ones start at ~£40. 

Good to see the Realspeed test.  We can now see the service problem to the VM Hub. 
On M250 we would expect to see at least 250Mb/s at the Hub & we do not we see only 43.8Mb/s perhaps we can figure out why that is the case..


1) This can mean a fault in a local street cabinet, check for this via both of : 

Call the local fault line: 0800 561 0061 – this is an automated number.

https://www.virginmedia.com/help/check/status/identification/identify


2) Cables

It can be a loose cable, check cables are secure at the Wall / VM Hub / VM TV Boxes.


3) This could also mean a fault on your connection.

In the VM Hub menu : http://192.168.0.1/    just below the Password, follow the link
> Check router status

If you can copy & paste the text of the Downstream tab and the Upstream tab so we can review the signal levels. 

There is an error problem on the 3.1 Downstream channel.

Seeing the 3.0 Downstream channels look better it looks like a VM service fault.

44Mb looks suspect to me as the hub might be faulty in some way and limiting you to one downstream channel?