Hello Thank for joining in on the forum, we will try the best to get your issue resolved.
How are you doing the speedtest is it either wired or wireless, wired is always the best option. If wired can you please do the following :-
Can you please post your network stats from the hub Open a Web browser (e.g. Internet Explorer) and enter the address http://192.168.0.1 Note: If you have enabled Modem Mode on your Hub 3.0 you will need to use 192.168.100.1 instead. Posting the stats by copy and paste will remove all personal information so no breaches. Do not login but click on where it says "Check Router Stats" and then copy and post from the following 4 tabs, Downstream, Upstream, Configuration and Network logs (if they are pasted then all personal information is * out) and we can check your power level, also while you about that can you please go around and check that all connectors to VM equipment are hand tight. Also while doing this please check for any damage to cable, or un-terminated connection without either coax or a terminator. Also please run "Check service status" at the top right of this forum and call 0800 561 0061 to check for local issues. Also one think you can do is too signup at https://www.thinkbroadband.com/broadband/monitoring/quality and setup a broadband quality monitor which will keep an eye on you connection by sending a small amount of data to the hub asking if it still on.
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Your upstream power levels are all maxed out, channel 23 looks odd too and the down RS error counts are high - might be historical accumulation so...
Can you reboot the Hub check the error counts have all reset to 0 and then repost ALL of the data.
Also, in the meantime. Set up a free “Broadband Quality Monitor” to continually monitor the state of your connection and record any true network dropouts - it will thus allow you to differentiate between those and simple wifi 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 VM - note it will take an hour or two to start seeing a sensible picture.
Thanks for posting and apologies for the lower than expected speeds. No issues are showing on our system. I can see you have an older hub. Would you like to replace this free of charge to a hub 3 router?