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PC drops wifi connection when TV gets power (hdmi)


Sitara876

New Member
Posts
1
#1
greetings!

i have found a few threads here that describe problems similar to mine, but nothing exactly. i've also used those threads to do a bit of troubleshooting, but nothing has worked.

i connect to wifi on my computer, it works fine, no problem. my tv is connected to my pc via hdmi. i get video and audio fine on my tv when i'm using it through my pc. the problem is when my tv gets power, the wifi on my pc drops, and it stops recognizing all of the wireless networks in the area that are normally on the list. it still will see my network, as it is set to automatically connect to it, but when i try to connect while the tv has power, it will not. it's not just when the tv gets turned on, but when it actually gets power, when it gets plugged in to the wall socket. when i unplug the tv, all of the wireless networks pop back up on my list, and i can connect to mine with no problems.

i'll also note that when my tv has power, and i have no wifi on my pc, i still do have wifi on my phone. the router is about 10 feet from me, in another room.

my network adapter is a Qualcomm Atheros AR9485 Wireless Network Adapter and i'm running windows 8.1. tv is a toshiba, not a smart tv.

uninstalled and installed newest drivers for the network adapter. it's set to not turn off the adapter to save power and it's set to high performance. i've run the troubleshooters both when the tv has no power/pc has wifi, and when the tv has power/pc has no wifi. it always says there is nothing wrong with the adapter.

any help or ideas would be much appreciated!
 

My Computer

System One

  • OS
    Windows 8.1

popeye

New Member
VIP Member
Guru
United States

Posts
3,090
#2
Welcome to the forum!

Your post is a bit confusing. You talk about HDMI and WiFi which have nothing to do with each other. Plugging in HDMI to the TV should have no affect on your WiFI unless you have a computer hardware problem.

Also no mention of router make/model. Computer make/model would be nice too.

Going by what you describe with the TV it sounds like your computer's HDMI port is messed up. Have you tried different HDMI cable?
 

My Computer

System One

  • OS
    Windows 8.1 Pro 64-bit
    Computer type
    Laptop
    System Manufacturer/Model Number
    Acer V3 771G-6443
    CPU
    i5-3230m
    Motherboard
    Acer VA70_HC (U3E1)
    Memory
    8GB DDR3 PC3-12800 (800 MHz)
    Graphics Card(s)
    HD4000 + GeForce GT 730M
    Sound Card
    Realtek High Definition Audio
    Monitor(s) Displays
    17" Generic PnP Display on Intel HD Graphics 4000
    Screen Resolution
    1600x900 pixels
    Hard Drives
    Samsung SSD 850 EVO 250 GB
    ADATA SSD SP900 128GB
    PSU
    90 watt brick
    Mouse
    Bluetooth
    Antivirus
    Comodo
    Other Info
    Asus RT-AC56R dual-band WRT router (Merlin firmware). Intel 7260.HMWWB.R dual-band ac wireless adapter.

broe23

Retired from the grind
VIP Member
Pro User
Central IL

Posts
3,468
#3
The only thing I can think of is either too long of a connection, or a huge draw of power. You could always go with a Miracast streamer stick, or try Chromecast.
 

My Computer

System One

  • OS
    Linux Mint 17.2
    Computer type
    Laptop
    System Manufacturer/Model Number
    Toshiba Satellite C850D-st3nx1
    CPU
    AMD E1-1200 APU with Radeon (tm) HD Graphics 1.40 GHZ
    Memory
    12GB
    Graphics Card(s)
    AMD Radeon™ HD 7310 Graphics
    Sound Card
    Realtek HD
    Monitor(s) Displays
    LCD
    Screen Resolution
    1366 x 768
    Hard Drives
    Crucial M500 240GB SSD
    Mouse
    Logitech M525
    Internet Speed
    45/6 - ATT U-Verse
    Browser
    Google Chrome
    Antivirus
    None needed. It is Linux.
    Other Info
    Arris NVG589 Gateway; Router - Cisco RV320; Switch - Netgear GS108 8-Port Switch & Trendnet TEG-S50g 5-Port Switch; Access Points - Engenius ECB350, Trendnet TEW-638APB; NAS - Lenovo ix2-4; Printer - Brother HL-2280DW; Air Print Server - Lantronix XPrintServer

    A/V UPS - Tripp-Lite Smart 1500LCD 1500 Va/900 W.

yu gnomi

New Member
Member
Chicago suburbs

Posts
145
#4
I don't know what OP's issue is either, but I have a Chromecast dongle on my TV and it works great. They are fairly cheap too (around $30 on Amazon).
 

My Computer

System One

  • OS
    Win 8.1 Pro
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Home Built
    CPU
    Intel i5-4590
    Motherboard
    MSI h97 PC Mate
    Memory
    Kingston Valu Ram 2 x 8 gb
    Graphics Card(s)
    Radeon r7 265
    Monitor(s) Displays
    Viewsonic 22" flat display
    Screen Resolution
    1920 x 1080
    Hard Drives
    Samsung 250 gb 840 evo SSD,
    WD Blue 1 TB HD,
    Fantom 2 TB ext HD
    PSU
    Corsair 600 W
    Case
    Antec 1
    Cooling
    stock CPU cooler, 4 x case fans, GPU fan and P/S fan
    Keyboard
    HP ps/2 keyboard
    Mouse
    Logitech Trackman Marble
    Internet Speed
    50 mb/s
    Browser
    Chrome
    Antivirus
    Norton Security Suite

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