I've been struggling with single thread speed results ever since I joined Pulse8 in November and very definitely thinking of migrating elsewhere.
Whilst speaking to potential ISPs last week, one of them mentioned that it might be worth trying different MTU settings.
Dropping the MTU to 1432 or 1400, appeared to do the trick initially and I suddenly had a connection that was maxing out on the TBB test tester and doing so across al my other chosen testers as well.
As I did a bit more analysis it became evident the results weren't at all consistent and thoughts moved onto whether it was just the PPP session restarts that were producing the improved performance.
Having reset the MTU back to 1492 and manually dropped and restarted the PPP session from the router's interface, it didn't take long for the results to move from:
Not sure why there should be good and not so good PPP sessions, but that appears to be the case.
However is there such a thing as good and bad PPP sessions?
Presumably not and there is some underlying cause to this which is escaping me
If you have any ideas, I would appreciate your thoughts.