I am having an issue with download speeds on a brand new Inspiron 15 3000 series. It arrived a couple of days ago.
Both wired and wi-fi internet is very slow compared to other devices on my network. I am getting download speeds of 20Mbps, while my smart phone is getting 90+. My previous 5+ year old Dell was also getting much faster speeds from the same router.
So far I have tried the following without any improvements:
Turned off Firewalls completely (turned them back on when it did nothing)
Updated all network related drivers
Made sure that receive window auto-tuning level is set to normal
Disabled all the network adapters showing in device manager but the LAN and Wireless ones
The wireless card is configured for 802.11ac, so i blocked every other type of network coming from the Virgin Media Hub.
The laptop was also slow on the office internet in work.
Some setting in this computer seems to be capping out my download speeds and I have no idea what.
Success! I reinstalled Windows. Now getting download speeds of 130Mbps through the Wi-Fi using Edge. Will tentatively try using Chrome later...
Thanks for posting.
Apologies that you had issues with your computer. Glad you were able to resolve it, and thanks for posting your solution so that other readers can be informed.
I am also facing same issue from day 1, even my laptop itself is very slow.
Configurations are very good - Core i5 7th gen, 8 GB RAM, 2 TB harddisk etc
I got Windows 10 pre-installed, but no CD to re-install it, how you have re-installed windows, and which version of windows you installed?
Hey, I just found solution, worked on my Inspirion 7570, maybe it will help you
Win + R -> type in "services.msc" -> turn off SmartByte Network Service
Before this I had 6-8 Mb/s now I have 320
Wow, thanks for that tip...iv'e been going crazy for three days now.
This solution instantly made my inspiron 5579 get top connection speed!
Did you figure out how to reinstall Windows? I too got mine from Costco. They have since taken it off their website. I wonder if this is why they stopped selling it?!!
I have the same issue with my brand new Dell Inspiron 15.
I spent 4 1/2 hours with Dell warranty department trying to troubleshoot this very issue. They remoted into my computer and did an exhaustive search. The final result was that it is not a hardware issue, but rather a software issue.
Now for the fun part... the computer warranty does not cover software issues. So, they said they can fix the problem but it will cost me over $300.00!!
What a joke this is. Dell does not stand behind what is clearly an inherent issue with their product.
I wish I had never bought a Dell product. And never will again...