CLEVO PC50DF1- Wifi Drops when HDMI is connected to TV

Discussion in 'Sager and Clevo' started by loft1, Feb 6, 2021.

  1. loft1

    loft1 Notebook Enthusiast

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    Hi all, as the title say, i have this issue, everytime I connect my laptop by HDMI cable to my Samsung Full HD 32", my wifi connection drops. As soon as I disconnect the cable, my Wifi will work again. I hadn't this problem before, with my Macbook Pro 2012, using the Thunderbolt adapter to HDMI. I tried several cables, but the problem remains, wheter i use a 5Ghz connection or a 2,4 Ghz. Any clue?
    Thanks very much
     
  2. Tech Junky

    Tech Junky Notebook Evangelist

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    Only thing I can think of is an IRQ or driver conflict. Typically though a display driver and wifi driver don't compete with each other.

    Check event manager after you plug in the HDMI for any errors to pin it down.
     
  3. loft1

    loft1 Notebook Enthusiast

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    Thanks for your feedback. I checked the wifi properties, without connecting the HDMI cable my wifi speed is 866/866 mbps, while as soon as i plugin in the HDMI, the connection drops to 58/26 mbps. Using the event manager, where should I look in order to find any errors?
     
  4. Tech Junky

    Tech Junky Notebook Evangelist

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    [​IMG]

    So, it's not dropping completely but just a reduced speed?

    Sounds like maybe the HDMI cable/port is causing interference.
     
  5. loft1

    loft1 Notebook Enthusiast

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    In case the HDMI Port causes interferences, what can i do? I've bought a new cable few days ago, in order to avoid any interferences, bit It didn't fix the problem. The weird fact Is that sometimes the connection reduces the speed a lot, sometimes it drops completely. Later i Will check the event manager, so i can tell you if there are any errors.
     

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  6. Tech Junky

    Tech Junky Notebook Evangelist

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    I recently tested out a few 8K cables and landed on Bphuny brand as the most stable. Got a 10 foot cable for $10 after discount.

    The whole wifi thing though is odd. It might be worthwhile deleting the drivers and installing the newest drivers. If that doesn't work then pop it open and check the antennae cables.

    Event Viewer should give a better idea of what's going on if it's system related when adding/removing the HDMI cable. If nothing regarding WIFI shows up during testing then it's more of a shielding issue with the cable being used or the antenna wires;
     
  7. loft1

    loft1 Notebook Enthusiast

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    So, here it is the event viewer of my pc once i´ve connected the HDMI cable:
    It's plenty of network errors ineed, any idea on what´s wrong?
     

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  8. Tech Junky

    Tech Junky Notebook Evangelist

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    Hmm... so it looks like you're using the Killer version of the AX200

    When I was using the AX200 it seemed fine most of the time but when I switched to the AX210 w/ 6E enabled it's been performing a lot better when it comes to stability and throughput even though it's using the same network as the AX200.

    "Internal Error" doesn't translate too much more than it's having some indigestion and needs some Pepto. I would go to intel and download the driver assistant and let it bring all of your drivers up to date for starters to see if anything shakes out in the realm of stability. If that doesn't fix the issue maybe swap out the card for an AX210 instead. I'm seeing less lag within my network even through ideally they should be pretty much identical other than enabling the 6Ghz band on the chip which doesn't have a SSID to connect to yet.

    Killer products are Intel w/ modified drivers to do some magical things that sometimes pose issues instead of benefits. Getting rid of the killer driver and using the intel driver instead might resolve it as well.

    Nothing in the logs stands out though as to the root cause of why it's dropping out specifically.
     
  9. loft1

    loft1 Notebook Enthusiast

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    Thanks man, i'll try swapping to AX210, let's see if something changes, i keep you updated
     
  10. loft1

    loft1 Notebook Enthusiast

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    Meanwhile i made another try, by using an adapter from USB-C (Thunderbolt 3) to HDMI, plugging the HDMI cable from the adapter to my TV and you won't believe it...the wifi works perfectly! No signs of dropping nor limited connection, so it seems the issue is related to my HDMI port on the pc..
     
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