Socket Changed, Router Changed What Next?

[Gashead]

Last month I switched from Sky broadband to EE. In the 18 months with Sky I may have lost connectivity a couple of times but nothing serious.
In my month with EE I have lost the connection daily, sometimes multiple times in a day, and 21.20 seems to be the favourite time.

It was a straight hub swap using the same external incoming socket.
First time it went I had a line reset as well as a hub unplug, count to 300 and plug in again. No change.
Second time an engineer came round who determined all appeared to be in order but swapped the front of the socket. No change.
The engineer had suggested if this made no difference I may need a replacement hub. Yesterday I swapped them out going from Smart Hub SH30A to Smart Hub SH31B. I swapped the broadband and mains cables for the new ones. All was good until 21.19 last night and 07.55 this morning when the line dropped on both occasions. The hub log indicates DSL is only lost for 30 seconds at a time though on one occasion this happened 7 times in one hour. Today it happened, according to the logs at 3.55 and 7.55 though not 11.55 just to rule that theory out!
I don't use the EE hub wifi, other than to verify no internet is provided to the hub. but output to mains networking for Sky Stream and Nest Pro for general house wifi. When the connection has dropped the hub light flashes, definitely not steady aqua but I can't run upstairs to observe every time!

So the equipment has all been swapped, the line tested several times. Where do we go from here?

[XRaySpeX]

What is the name of the EE BB plan are you on including its speed?

[Gashead]

Essentials Fibre 67 though it cheats and runs at 68.5!

[XRaySpeX]

Welcome to EE's Home Broadband Forum.

Fibre 67 is anything up to 80 Meg.

If you would like help with your BB speed or connection issues, please would you carry out the following steps for starters, which will enable us to diagnose the problem and advise you further. Do not restart your router to do these tests:

1. Post your full router stats:

• For a SmartHub: login and go to Advanced Settings > Technical Log > Information. Obscure your names & any numbers in the BB Username & also the SSIDs. Also post the Home > Status page.
• For a BrightBox: login and go to Advanced Settings > System > DSL Status. Also post 'System Uptime' from top of System Log page.
• For other routers: login to it according to the label on it as the admin user & navigate looking for its router/connection statistics.

Full router stats are key to any speed & connection issues.

2. Try a speedtest, preferably wired using an Ethernet cable supplied with the router, here http://www.thinkbroadband.com/speedtest.html . Click on the "Results Page" button at the bottom of the graph you first see and then copy to here just the "Link to this result:" link that you see below the next main graph.

3. What does BT Wholesale Broadband Availability Checker estimate for your phone number? Post just the whole table and the line above it, blanking out your phone number. If it doesn't recognise your phone number or you don't have one, use the Address Checker, not the Postcode Checker.

[Mustrum]

@Gashead   if you are still having line drops then further investigations need to be made, complex faults can take some time to get resolved.

Router stats and logs can help, but Openreach will have to do the investigations on the line if needed. 

No one on here has account access so have no clue what has been looked at so far, other than what you report, so further calls to Customer Services who will have a more complete picture of your issues will be needed.