Not a generic fault in the IE 11 implementation, i.e. that is an oddity, presume the tbbx1 is close to actual experience?
Suggests that there may be some AV/browser plug in interaction
Trying https://labs.thinkbroadband.com/speedtest may help since over SSL less things should interfere with traffic
Yes Andrew, the TBBx1 is about right low 60Mbps, same as HTTPx6 normally is.
AV is Avira, could be something in their web protection settings. Only plug-ins was Lastpass and shockwave flash object. Disabled them with varying results.
Here's
one that I done and here is
another one that was done 4mins earlier.
Don't worry about it, I know what me speeds are, about 15Mbps slower than they were 18 months ago.
Just makes Zen look good when people looking in my postcode area see speeds up to 173Mbps on your Broadband Map when they click the flag.