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  1. #16
    I'm pretty sure this isn't TP-Links fault.

    I have an ASUS X370 Prime Pro board here. It shut down my 2210P, so I plugged it into a Cisco/Linksys SRW2008P. It shut that down the same way, but not before letting the magic smoke out of the NIC on the motherboard. Even after the motherboard was fried (ie no carrier on the NIC no matter what it was plugged into), it would still shut down the PoE switches. I wasn't game to plug it into an old Cisco 3550 I have here, and I'm sure as heck not plugging the replacement board into a PoE switch!

    These ASUS boards with "LANGUARD" on them seem to have some surge protection devices to GND wired in such a fashion to cause this issue, and as I found out if you plug them into a beefy enough switch that is set up "just wrong", you'll smoke the network adapter on the motherboard.

  2. #17
    "I have an ASUS X370 Prime Pro board here. It shut down my 2210P"

    I have the exact same problem . I thought I was going mad , Asked around with a few of my techie mates and they had no idea .

    Is there a work around yet ?

  3. #18
    Quote Originally Posted by troyww View Post
    Is there a work around yet ?
    Yep. Don't plug them into a PoE switch. This work-around of cutting the earth pin off, or the use of a floating power supply is insane. The problem is with the ASUS board, and unless a song and dance gets made they'll never do anything about it. Unfortunately it's generally only on their "ricer" grade boards with "surge suppression" on the Ethernet port for marketing reasons :

    "ROG engineers modernized the design with advanced signal-coupling technology and premium surface-mount components, which, add protection from power spikes and keep the (Gigabit) Ethernet signal cleaner, reducing the chance of errors. These are normally corrected by error checking mechanisms, but this requires CPU time that could be devoted to your game!"

    So, basic twaddle saying our custom circuits make your game less laggy because you won't get errors. Marketing fluff that breaks stuff and has no basis in reality. Unfortunately they also put it on a non-ROG board (the X370 Prime), so those of us that are not into bright red boards with flashy buits get to suffer as well.

    If my local store was amenable to it, I'd happily plug board after board into my Cisco switch and flood ASUS with RMAs. Unfortunately I don't think that'll win me any favours.

    The work around is to buy a non-ASUS board. Again, this is not TP-Links fault.

  4. #19
    Thanks for the the simple reply . I do not ever expect a response from either TP-Link or Asus from past experience ...
    Do other better quality POE switches work with "Lan Guard"

  5. #20
    Quote Originally Posted by troyww View Post
    Thanks for the the simple reply . I do not ever expect a response from either TP-Link or Asus from past experience ...
    Do other better quality POE switches work with "Lan Guard"
    Given my Cisco switch made the "Lan Guard" components go up in smoke rendering the entire on-board NIC useless, I'd suggest the answer is *no*. I have some other nice switches here but there's no way I'm risking another motherboard to try it.
    When I get a moment I'll have a closer look at what the ASUS board is doing. I have an idea it's not properly isolated and is doing something funky, but again I don't want to risk damaging working hardware with potentially risky tests. Not nice when a $250 motherboard goes "phut" and emits a puff of smoke when you plug the NIC in.

  6. #21
    Quote Originally Posted by BradC View Post
    Yep. Don't plug them into a PoE switch. This work-around of cutting the earth pin off, or the use of a floating power supply is insane. The problem is with the ASUS board, and unless a song and dance gets made they'll never do anything about it. Unfortunately it's generally only on their "ricer" grade boards with "surge suppression" on the Ethernet port for marketing reasons :

    "ROG engineers modernized the design with advanced signal-coupling technology and premium surface-mount components, which, add protection from power spikes and keep the (Gigabit) Ethernet signal cleaner, reducing the chance of errors. These are normally corrected by error checking mechanisms, but this requires CPU time that could be devoted to your game!"

    So, basic twaddle saying our custom circuits make your game less laggy because you won't get errors. Marketing fluff that breaks stuff and has no basis in reality. Unfortunately they also put it on a non-ROG board (the X370 Prime), so those of us that are not into bright red boards with flashy buits get to suffer as well.

    If my local store was amenable to it, I'd happily plug board after board into my Cisco switch and flood ASUS with RMAs. Unfortunately I don't think that'll win me any favours.

    The work around is to buy a non-ASUS board. Again, this is not TP-Links fault.
    You are wrong. The problem is both with TP-Link and Asus. This is their official reply to me:

    Quote Originally Posted by TP Link
    PROBLEM CAUSE:
    This problem is hardware related but not only the fault of the TL-SG2210P. Simply speaking, it is because the NIC of these Asus late model Motherboards is not line with the IEEE 802.3 safety requirement, and unfortunately, the PSE module in our TL-SG2210P does not meet this requirement as well. When the two devices work together, it causes the short circuit. And since the power adapter of the TL-SG2210P has the overcurrent protection function, it will cut off the power supply of the TL-SG2210P when the short circuit happens, so that the TL-SG2210P will not work until it is disconnected from the Asus Motherboard again.

  7. #22
    Quote Originally Posted by xonacs View Post
    You are wrong. The problem is both with TP-Link and Asus. This is their official reply to me:

    [/FONT]
    So these Asus boards will work with what POE switch ?

    Really don't want to experiment and kill the motherboard .

  8. #23

    Exclamation

    Uuuuuh - I'm going be crazy. WTF the dev's are thinking 'bout it for "no reaction"

    Let me explain ... An enduser which buys an switch with PoE is not the regular simple user ...
    He wants to take the benefit of PoE, and is also most time an experienced user.
    I'm experienced in over 30 years. So I think, that it was luck, that this brandnew system which I have build (for a customer) did not fried!!

    My result?? PoE is dead for me. I'll destroy this crappy switch (TL-SG1008P) and will buy a normal Gigabit-switch. Just for my Phone I also have an external PSU.

    I don't waste my time for this crap!!

  9. #24
    Members R1D2 is on a distinguished road
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    Quote Originally Posted by kangaroo72 View Post
    My result?? PoE is dead for me. I'll destroy this crappy switch (TL-SG1008P) and will buy a normal Gigabit-switch. Just for my Phone I also have an external PSU.
    Please, don't destroy this fine switch. Send it to me, I love PoE, have lots of devices powered through PoE and I'm not using crappy ASUS boards.

  10. #25
    The fastest way is to contact your provider

  11. #26
    Junior Member Hjsurk is on a distinguished road
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    Jul 2017
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    Lightbulb adhesive tape

    Just wanted to add to this topic that we solved it by putting adhesive tape over the earth pin.


 

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