Slow single thread download speeds

[andybowden]

Hi, 

I have the 1Gb service using the Virgin Router in modem mode.  This then connects to a Ubiquity UDM pro on a 2.5Gb LAN.  I can consistently get 1130Mbps download using Speedtest.net when using multiple streams.  However if I choose single stream the best speed I can get is about 50Mbps.  I often stream 4k video streams from a private server which is causing buffering issues.  I have restarted all the equipment.  I know the issue is with the VirginMedia side as I can stream from another site that uses a 1Gb line through a BT leased line perfectly.  I had this issue a few years ago and after many calls to Virgin support I received a call from a senior Virgin engineer who confirmed there was an issue with a switch on the VirginMedia side and that it probably needed a restart/replacement.  He said he would investigate and a couple of weeks later it was resolved.

Can anyone from VirginMedia help please?

[legacy1]

Odd that its only 50Mb as multiple streams would need to do like 20 thread to hit your speed that you say get....seems unlikely

[andybowden]

I know it does seem strange but I consistently get the same results on multiple test sites.  

[Tudor]

On the UDM Pro you can set up a daily speed test between the router and the network ignoring any devices. You specify within what hour you want the test run and it’s also available as a once off. I have mine set to 04:00 and always get the full speed of my 1G connection.

[Adduxi]

I just done a very quick non scientific test and I can replicate the 50Mb single thread on Speedtest.net - But it depends on the target server.  Some give 50 and other hit over 200, so not sure what the outcome was really  🙂