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netcora's avatar
netcora
Tutor
Aug 20, 2025

Netgear XS508M/Router GT-BE98 Pro Slow with one Intel NUC

Hello. I have the switcher XS508M its LAN Port 1 is connected to the Lan Port 10G port of my router GT-BE98 Pro, and the NUC is connected to LAN Port 2 of the XS508M in other words, in switch XS508M the LAN port 1the router 10G lan Port of my router and in the XS508M LAN port 2 the NUC, when I use fast.com via I have speeds of 400 mbps around, and if I connect directly the NUC to the router to Port 10G, skipping totally the switch I have speeds of 600-900 mbps totally much better. Why if is supposed the XS508M supports 10G ports I have such speeds when browsing or in transfers? As this other similar devices. For example in one MYQ Garage opener if I connect to the Switch simply is not recognized I need to plug directly to the router to work.

 

But mainly what I would ike to know is why the speed issue or how can I fix or configure in any place something to improve this? Or why happens this?

20 Replies

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User

    All ports on the XS is 10Gb supporting. 
    What is the Intel NUC? Model # please? 

     

    Be sure that the switch is connected to port# 6 on the router as that seems to be the 10Gb LAN port for your router. 

     

    What CAT# LAN cable are you using? CAT6A STP is recommended. STP Differs from UTP cabling. 

     

    Recommend connecting 2.5 to 10Gb supporting devices to this switch to take advange of up to 10Gb speeds. If your devices are 1Gb then connect them to the main host routers 1Gb ports. Or install a non managed 1Gb LAN swtich for 1Gb supporting devices. 

    • netcora's avatar
      netcora
      Tutor

      Hello. Thank you for the prompt reply. The NUC I tested is 

      NUC13ANHi7000 but as I said if I connect to the switch less speed than connected directly to the router and even connecting directly to the router in 2.5 port is extremely great, but in the switch not.

       

      I'm using CAT 8 cable, but is not supposed if the router is perfect the connection with such cable the switch should be do the same?

       

      This si the network card of the NUC

       

      C:\Users\INTELNUC>wmic nic where "NetEnabled='true'" get Name, Speed

      Name                                 Speed

      Intel(R) Ethernet Controller I226-V  2500000000

       

      I see 2.5 then should work.

       

      And for other devices then if is 1Gb is suggested use used another switch over this switch becuase as I explained the MYQ Liftmaster device a gate opener is not recognized at all and only is detected directly from router.

      • FURRYe38's avatar
        FURRYe38
        Guru - Experienced User

        Happen to have another PC with high speed card installed? If so, something to try and test out with the switch, Connect both PCs to the switch and install iPerf or something you can speed test the data flow between these two PCs  when connected with the switch in the middle and see if speed is slow between them or not. Would be telling. 

         

        Be sure drivers are up to date for the Intel ethernet card as well. 

         

        I see other have noticed some issues with this particular model card: https://www.reddit.com/r/intel/comments/123kjuc/anyone_else_still_having_issues_with_i226v

         

         

        netcora wrote:

        Hello. Thank you for the prompt reply. The NUC I tested is 

        NUC13ANHi7000 but as I said if I connect to the switch less speed than connected directly to the router and even connecting directly to the router in 2.5 port is extremely great, but in the switch not.

         

        I'm using CAT 8 cable, but is not supposed if the router is perfect the connection with such cable the switch should be do the same?

         

        This si the network card of the NUC

         

        C:\Users\INTELNUC>wmic nic where "NetEnabled='true'" get Name, Speed

        Name                                 Speed

        Intel(R) Ethernet Controller I226-V

         

        I see 2.5 then should work.

         

        And for other devices then if is 1Gb is suggested use used another switch over this switch becuase as I explained the MYQ Liftmaster device a gate opener is not recognized at all and only is detected directly from router.

         

  • I forgot to mention that yes this router has the LAN 1 and LAN 6 as 10Gb. Tested on both and the same but even in a 2.5 port should behave better, at least as the router direct connection with the NUC or whatever.

     

  • StephenB's avatar
    StephenB
    Guru - Experienced User
    netcora wrote: Netgear XS508M/Router GT-BE98 Pro Slow with one Intel NUC

     

    You seem to be assuming that the problem is with the XS508M->NUC connection.  I am thinking it might well be the router->switch path.

     

    Are you seeing both LEDs lit green on the switch for both 10G connections?

    • https://www.downloads.netgear.com/files/GDC/XS505M/XS505M_XS508M_IG_EN.pdf

     

    netcora wrote:

    For example in one MYQ Garage opener if I connect to the Switch

    I am confused on this, since the MYQ garage opener I see on line only supports wifi connections.

    • netcora's avatar
      netcora
      Tutor

      You seem to be assuming that the problem is with the XS508M->NUC connection.  I am thinking it might well be the router->switch path.

       

      Yes indeed despite I have CAT 8 cables the router didn't like it. I purchased other brand of CAT8 cables and worked, now all leds are green. Thank you for the PDF very illustrative and to understand all the behavior of the router.

       

      Just the problem or curiosity:

       

      Oh sorry about the MYQ/Liftmaster device, is the 828LM that you connect it to LAN port to supply Internet:

       

      https://www.liftmaster.com/liftmaster-internet-gateway/p/G828LMMC#spec

       

      This one simply is not recognized, why? This device directly to routers Orbi or mine ASUS are detected cleanly, just the switch not.

      • FURRYe38's avatar
        FURRYe38
        Guru - Experienced User

        Possible speed compatibility issue with the lan device and the switch. I wouldn't waste a LAN port on the switch for a slower connecting device, if the device is seen by the Orbi or ASUS, connect it there. 

  • Exactly FURRYe38 I noted some strange behavior in the switcher.

     

    I made some tests in the router to make some DHCP IP's static with macid and normal things and suddenly the switcher again started to give half of speed and if I connect the devices directly to the router they are at maximum. Is there a special condition or something that makes the switcher low the speed? Now, again I'm trying to make it behave with high speed. The interesting is the leds are green in all portals as normal. The only thing I did is remove the king aggregator from the Bios and assign some IP's to some devices and that's all.

    • StephenB's avatar
      StephenB
      Guru - Experienced User
      netcora wrote:

      The only thing I did is remove the king aggregator from the Bios and assign some IP's to some devices and that's all.

      Maybe try undoing the Bios change.

    • FURRYe38's avatar
      FURRYe38
      Guru - Experienced User

      So the switch had been working at full speed before you made some DHCP IP static address configuration changes? 

       

      Since you posted here: Orbi 970 Horrible performance in AP Mode | NETGEAR Communities

       

      Possible that your mis configurations regarding static and reserved maybe at play here and causing the switch to not operate correctly. 

       

      Something you should do to check the switch, if you have a friend, family, work or nieghbor with good internet, take this switch to there location and just connect it to there system, with out making any changes, connect one or two ethernet connected PCs to the switch and run some speed tests. 

       

      No idea what your referring to king aggregator from bios means. 

       

      I have the 5 port model of the XS508 and have had zero issues with it. Even have the SFP port connected with a 10Gb to ethernet adapter installed. Been working great here. 

       

      netcora wrote:

      Exactly FURRYe38 I noted some strange behavior in the switcher.

       

      I made some tests in the router to make some DHCP IP's static with macid and normal things and suddenly the switcher again started to give half of speed and if I connect the devices directly to the router they are at maximum. Is there a special condition or something that makes the switcher low the speed? Now, again I'm trying to make it behave with high speed. The interesting is the leds are green in all portals as normal. The only thing I did is remove the king aggregator from the Bios and assign some IP's to some devices and that's all.

       

      • netcora's avatar
        netcora
        Tutor

        Yes, I had issues with the ORBI 970, but that issue was solved by connecting it to the ASUS router in 10G ports or via the Switch as it is now. The Orbi 970 is currently plugged into the switch along with other devices, and for now, the Orbi is working fine.

         

        Returning to the switch, I noticed that when I kept it powered off for one day, the devices connected directly to the router ran at maximum speed—10G ports for the higher-speed devices and 2.5G for the lower-speed ones. This morning, I turned the switch back on, reconnected it to the router, and with all the devices plugged into the switch, everything is running perfectly again at full speed. I don’t know if the switch performs some kind of analysis when major changes are made to the router’s BIOS, or if it stores information that temporarily limits speed or control in some way. I also don’t know if there’s a way to reset the switch’s memory or tweak it so it forgets previous settings. For example, 2 days ago, when I made critical changes to the router I don't know what thought the Switch. I know is unmanaged but who knows what happens inside the switch when the issues happen.

         

        For now, everything is working again, and I won’t make more critical reboots or changes to the ASUS router. This kind of issue shouldn’t happen, since the switch is supposed to always run at maximum speed regardless of past configurations. My ASUS router is connected from its 10G LAN Port 1 to LAN Port 1 of the switch. I don’t think the specific port on the switch matters, but I’ve always used Port 1 in the Swtich to connect the router and the consecutive ports for the other devices.

         

        Who knows what happened but after 1 day off the switch is stable again. Is interesting to know or if there is something to reset it to return original state in the Switch.

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