Bdtyktl

This is a 60 second average sample of my wireless speeds as of two days ago (had to post link since I have <10 rep). I'm not a basic user, and I'm wondering why this would even happen. I fear the router may be giving out (on the wireless end and NOT the wired end), also there were a few power outages at this time, so I fear the router's wireless broadcaster may be on crutches due to a surge of some sort, it is NOT on a surge protector (which I do realize it really should be).

Things I've tried:

• Performed a Hard Reset on the router and re-building the network.
  
  
  
  
  • My SSID is not broadcast, the password to the router and the network are both fairly
    secure. (Non-sequential lowercase letters, uppercase letters, numbers, and symbols.)
  
  
  • I have changed the channel the router is using to almost all of the channels.
  
  
  • I've swapped DNS's just to make sure it's not my ISP.
  
  
  • Used a direct connection from the modem to ensure I'm actually getting the correct bandwidth.
  
  
  • Disabled/Re-enabled NAT.
  
  
  • Swapped out cables (since the cable from the modem to the router is actually a home-made CAT6 cable from a while back, had to make sure it wasn't my potentially shoddy work.)
  
  
  
  


• I've used the refresh button on the router countless times, and I've made sure my wireless receiver is still in working condition (as my computer is not the only one receiving poor speeds through wireless.)


• I've double-checked all settings (IP Address range, etc), checked the logs of the network, rebooted, and updated the firmware of the router.


• Last but not least, I have also reset power to both the modem and the router separately, at the same time, and the "picky way" that most ISP's have to tell you how (e.g. gotta do router, wait 5s, then modem, etc).

My Wireless Receiver:

• Rosewill USB Wireless Receiver (300mbps+300mbps)


• I am also on 64-bit Win8.1 (whereas my roommates are on Win8.1 and Win7, and my laptop on Win7)

My Router:

• Linksys E1200 Wireless Router

EDIT: I realize the graph is not always going to show what my throughput is, and only how much I'm using, but the screenshot in question was taken while I was downloading files from my Dropbox.

I have found the solution that the firmware on the router (that I did, in fact, attempt to update) was out of date even after I supposedly finished updating. It turns out after some interrogation from my roommates that one of them was fiddling with the router while I was updating, after I explicitly stated to not touch the router for a few minutes. After one final reset, I re-installed the latest firmware again (and this time barred off the router, heheh) and everything worked out fine. Thank you everyone for your help!

The steps you have already carried out seem to point to it being the wireless part of the router itself (thanks for doing these by the way, makes diagnostics much easier!).

As you have stated it might have been victim of a power surge and that all devices are receiving the same poor wireless performance, the likelihood is that the wireless sender or any number of components that work with it have been damaged. I would suggest borrowing or purchasing a new wireless router and see if the issue persists. You may have luck finding the damaged component if you're a dab hand with a multi-metre and a soldering iron.

If the issue still persists, contact your local place of worship and enquire about an exorcism or purification, as you may have an infestation of wireless poltergeists.

A really weird answer, but this worked for me when I had no clue what was causing low wifi speeds, even when I was very, very close to our router (Netgear 802.11n).

I had change the maximum operating speed from 300Mbps to 150Mbps (since I got only 90Mbps from my ISP, I didn't care).
If I set the TLS limit on 150Mbps max, I got a very stable connection around 50Mbps.
If I set the TLS limit on 300Mbps max, I got a terrifying not stable connection around 10/20Mbps.

I still don't understand why that would work, but if you changed these settings, you could try this.

Sorry I had to post this as 'answer', but since I'm new to this forum, I can not publish a comment (50rep needed, I got only 16rep atm).