broadband access speed only 200kps for the past 3 days!

[cmakala]

I have tried the um 175 usb 3g modem on both my laptop and desktop.  The fastest i can connect at using verizons speed test is 181 kbs.  My signal is 3 out of 4 bars, my evdo is at -85, 1xrtt is also -85.  I am using the latest modem and vz access software.  I had this problem about 1.5 months ago when it wouldnt budge off the download speed or 200kbs for 2 weeks.  Verizon sent me a new modem but the night before it arrived i logged in and wast back up to 1200kbs with the old modem.  All was well till like 3 days ago and now im back down to less then 200kbs again.  I use no router just plug my modem right into my desktop or laptop.  I have a ticket open now with verizon.  I work 2nd shift so I use the internet around this time of day or at 12-2am in the morning.  When i connect it does not say im on national access btw.  If anyone has had anything similiar and has any advice im listening

[cmakala]

Update:

Went to a verizon store with modem and laptop in hand.  At the store all 4 bars where green, but when I ran the speed test for the tech it was at 137 kbps.  Needless to say the tech was shocked.  He called there office and said my ticket was still open and that they should call me Monday.  I wonder if verizon has the ability to slow down the download on  purpose.  My bill is paid up and not due for like 15 more days...