It works fine on the same computer when I connect with a wifi or a wired dsl or cable connection. Just not with the Sprint u300. It also worked with the Sierra wireless card I had before I upgraded.
I have eliminated every other possibility. It's got to be the U300 or something with the Sprint network.
Has anyone else had this problem? Is there a solution?
Have you done a SpeedTest lately, or when you're having this issue? What's your latency (ping time)?
Whats the ping time to the server you're having problems with?
Have you been able to use the same U300 card in a different computer and experienced the same problems?
Have you been able to use a different computer on a different network connection and experienced no problems?
It works with WiFi using Sprint Smart View. It works with a wired connection. It doesn't work with the U300.
They suggested that it would be some sort of virus protection or firewall, but the behavior continues -- works in wifi, not with the U300 -- even when virus protection and firewalls are off; I even went to the extreme of removing them completely with the same results
I don't know how to do a speed or latency test, but I'm in the DC area and should be getting a strong signal.
"The Acceleration Tab
If you enabled data acceleration when you installed the Sprint SmartView software, the settings
window will include an Acceleration tab.
When connected to a Mobile Broadband network that supports data acceleration, Sprint
SmartView can employ data compression and acceleration techniques to enhance your
connection speed. You use settings in the Acceleration tab to configure the data acceleration
● The group of settings marked Acceleration is responsible for enabling and disabling the
● The group of settings marked Acceleration Level configures the amount of acceleration
See page 118 in your user manual, or view it online at.
This is most likely causing the issue. Turn off Accelleration and you'll be golden.
That seems to work, but I have a followup question: Is the acceleration a software only, or a hardware feature? I want to get a Cradlepoint MBR1000 broadband router for the card to use in my office. If I do, will I run into the same acceleration problem? Or would it not be activated on a router?
I'm not sure if the software sends a request to a network gateway, or if that's a software function.
Just checked with the network gurus. When attached to the Cradlepoint, the U300 will not use any byte compression, 'web accelerators' or anything like that. Just a dumb pipe, which is the behavior you're looking for.
I can't imagine I'm the only person who has run into this problem, but I'm close to giving up. I've been a Sprint customer for over a decade, and in the fall of 2008 got rid of my AT&T land line and DSL when I first got the Sierra 597 3G card and the MBR1000 router. I upgraded to 4G - the Atlanta area is "swimming" in 4G coverage - last fall when I upgraded my DirecTV to HD wanted faster DL speeds for downloading DTV on demand video. I'm happy with 4-6meg on average DL speeds I get (3G was 1 to 1.4meg at the most) but I'm very frustrated with the basic browsing problems which I NEVER had on the 3G network. I'm ready to start looking into replacing my Palm Pre with an iPhone from AT&T and going back to DSL.