I have century link DSL. Supposed to get 1.5mb/s download. Lucky if i get 150kb/s. Works fine for browsing and playing AH though. Just pray you don't have to download anything.
On the part of whether I'm getting all the download speed of the package that I'm paying for I don't know if I am or not. Back in the days when I 1st got DSL thru Qwest I used to run them speed checking programs but in the last 6-7 yrs I just stopped worrying about it.......I judged my connection since then on the main barometers (stable, fast, trouble-free, availability, etc).
What I DO know is that I don't have any issues w/ slowdowns when downloading on my CenturyLink DSL connection.
My connection uses PPPOA instead of PPPOE......mostly due to the 50's era wire & phone system. It's an older protocol but it allows full 1500 bit packets instead of 1492 bit ones.....probably small fish but there you go..........
1 thing I did learn about ADSL is your connection will be better if you get rid of line filters between your ADSL modem & the line at your phone box. If you can run a separate line for your DSL connection from your phone box then separate all other phone lines AT THE PHONE BOX from the rail that has your ADSL wire, put them on another rail, split the service from the line between the 2 rails & use 1 filter placed in the service connect to the rail that has all the phone lines connected. I did this in my phone box & my connection improved big time as now my ADSL connection was unhampered by any filters. Bout 4 yrs back a CenturyLink tech was out checking their lines in my neighborhood after a report of a pole getting hit causing service interruptions...when the tech opened my service box & saw what I had done he was impressed & told me that he was going to show this to his folks. 2 weeks after this the same tech came back to show me that CenturyLink had either found/developed an ADSL line splitter device w/ a built-in filter to do the exact same thing that I had done using 2 phone rails but this device could do this across 1 phone rail & they wanted to install it in my box to test it. Device was installed & I saw no difference in connection performance or our phone service so I deemed that it was working as designed. Been using it ever since w/ no issues.
If it makes a difference I also am not using a modem provided by CenturyLink....my original ADSL connection was thru Qwest w/ MSN which used an ID/passcode sign up which simulated a std dialup connection meaning that there isn't any back door coding between the DSLAM & me that would force me to use the CenturyLink-provided modem....any std ADSL modem using std protocols will work but all ADSL modems aren't the same & you kinda need to know how you're gonna use your line to know what features you will need in your modem. I also run my work laptop thru my home connection (it's faster than the Alltel 4GTE hotspot my job issued) so I knew I would need ISPEC & VPN along w/ WPA2. I also found out thru my wife getting a Kindle Fire tablet & that Amazon had screwed up the backwards compatibilities in their vers of Android 3 that I had to have wireless N capabilities in my modem to quiet the wife ack. So I use the ZOOM ADSL modems (had a X6 to start with for many years but had to up to the X7N bout 1 1/2 yrs back)...not due to superior speeds but due to stability (used to own a ZOOM external 56K modem back in the days of dialup that was rock solid....figured these would be as well....was not disappointed).
Just some things to consider.....................
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Hope this helps.