I'm using Ubuntu 14.04 LTS on a Toshiba Satellite S55-B5289--not sure what my wireless card is. The last time I had it on was a couple days ago, and I had no network problems. Today, I can't get reliable network access. Trying to ping www.google.com gets me anything from "unknown host" to 75% packet loss. I've been able to load the Google homepage once, but then I'll get dropped from the network.
I've got a Toshiba Satellite S855-S5378 with a RealTek RTL8723AE Wireless LAN 802.11n PCI-E NIC right beside it running Windows 8.1 with no network issues, and a couple mobile devices that aren't having network issues. The machine running Ubuntu is the only one having problems.
I've got some superficial Linux experience, but I'm definitely well in the "noob" category when it comes to networks and connectivity (Linux or otherwise). This kind of feels like a driver issue to me, but I'm clueless.
While writing this on my Windows laptop, my Ubuntu machine has been erratically connecting to and disconnecting from my home network. Where do I start in trying to fix this?
It might also be useful to add that when I'm plugged in to the network, I have no issues. This is strictly a problem when I'm trying to connect to the network wirelessly.
The requested wireless info output can be found here: http://paste.ubuntu.com/9707958/
FYI: The "shayler" network is the one I'm trying to work with. "freedompop" is my mobile hotspot. Any other networks are irrelevant.
Okay, so after a lot of back and forth, and attempting a few suggestions, I'm starting to suspect my router. I've done some more extensive testing on my hotspot, and when that has a strong connection, the Ubuntu machine has no trouble staying connected and delivering great speed. I have a NETGEAR wnr2000v3 running the latest firmware (V220.127.116.11) and I'm going to see if I can find any known issues there. If anyone has any tips, thanks in advance.
I'm still missing something. When I use my mobile hotspot, I have no connectivity issues at all. But even when connected to my home network I can ping just about any domain successfully from the command line. I get the same responses I get from the Windows machine.
I've found a couple posts that say "if you can ping a domain, but your browser still can't navigate to a website, try..." and I've tried those. I've turned off IPv6 and checked my DHCP settings. I haven't found any known issues.
Should I still be thinking driver issues, or are there other options?
I don't know why I didn't think to check this before, but when I use the laptop in the same room as the router, I have no issues. I would think, then, that this is potentially about router placement, but again, I've got 5 other devices within arm's reach of my Linux laptop that aren't having issues. and I wasn't having issues with the Linux laptop until recently.
Today I reset the router to factory settings, and then I tried my Ubuntu laptop again. I had an excellent connection for about a minute. I was able to load a couple of web pages, and then I tried to play a video from YouTube and everything ground to a halt. I shut down the browser and tried to get 50MB of updates using the Synaptic Package Manager, and the download never even started.
I've been walking around my basement office, and I'll intermittently get and then lose the signal--sometimes while staying in the same spot.
Is it as simple as having a shoddy wireless card? Or is it a cruddy driver? We've had the router for a while, and I'd be tempted to blame that if it weren't for all these other devices running smoothly.