Humph. Following a recent problem with my Virgin Media (ex-Telewest/ntl)
broadband connection, I'm noticing that various speed test pages on the
web report pretty poor speeds now.
Here's a typical result:
http://www.kbps.co.uk/SpeedCheck_rep...1175114550_487
I tried these pages before the switch over to Virgin and got reasonable
speeds...
Virgin Support say that I shouldn't trust these speed check pages, and
the best way to check is to download two files simultaneously from one
of their download pages (e.g.
http://gamefiles.virginmedia.com/blu...42/demo/win32/)
and sum the total speed. That does show the correct speed (about 1
megabyte per sec), but this is on their network/infrastructure, so
surely not a good test?
Here's details of the recent problems I had, written up just after it
was fixed, FYI...
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1) My Scientific Atlanta WebStar DPX100 modem wasn't maintaining a
connection (the 'cable' light was flashing - should be solid) -
technician came out today, looked at modem, said "There's a 10dB
attenuator on the end of the cable there - at one time your signal was
too strong, but it isn't any more, so we'll remove that and it should
work". So he did remove the little plug on the end, reconnected the
cable, and it worked in as much as I got a connection of sorts back.
2) Noticed later on today that the speed of my connection was pants -
about 0.5mb/s. I'm on a 10mb/s deal so that's rubbish. So phoned
support, they asked me what the modem web page said - turns out the
downstream frequency, which should be 331000000 Hz, was something like
331250000. He immediately recognised this as a problem, saying that "For
some reason, each of those makes of modems at one time in its life loses
the correct frequency." To fix, I had to go to the URL
http://192.168.100.1/gscan.htm (not linked to anywhere from in the
regular pages for the modem!) and manually enter the correct frequency
and hit 'restart' button.
Now I have full speed again. The guy recommended testing the speed by
downloading two files simultaneously from the virgin game downloads
(e.g.
http://gamefiles.virginmedia.com/blu...2/demo/win32/),
and summing their speed. Doing this did indeed give me just about 1
megabyte a second, which is what it should be...
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