Certainly something going on with your upstream, if you hang around a VM staff member will have a check on this for you and if need arrange an engineer for you as long as there are no local issues affecting your connection you can check yourself by click on "Check Service Status" top right of this page.
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Thank you for reaching out to us and welcome back to our community, I am sorry you are having issues with your upload speed.
I have checked everything coming into your property and also checked all the network side and cannot see any issues at all, every single thing is within spec.
If you are still have the same issue you can set up a free “Broadband Quality Monitor” to continually monitor the state of your connection and record any network dropouts. It does it 24/7/365 and it keeps a visual record of any/all of your network disconnections, useful data to have to match to the Network logs (in your Hub settings) and also in discussions with us. Make sure you un-check the “ignore ping from WAN side” box in the settings if you see a wall of "red" - note it will take an hour or two to start seeing a sensible picture here is the link you will need.
the thing is paul it isnt within speck though is it, i am contracted to a 350 download and 40 upload going by my pictures does this look as though its ok to you because its sure as hell not ok by me, my virgin media box on the outside wall of my house is hanging on by a thread theres wires been cut but it doesnt look as though its caused any problems that i grant you but dont tell me everything is fine its not fine, i bought a new server costing me £1800 and without that upload speed of near 40 mb its not worth having
I appreciate where you are coming from, all our checks are showing no issues, even all the network checks are exactly where they should be, i agree the upload isn't right to find out more I advise you run the test for at leat a few days and see what it brings up.