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Solved
LAN disconnection issue
Dear all, I have a single PC on a LAN that every few days suddenly reports a "Red X" and no connection to the LAN. I've run a cable test, and no error/short etc. is reported. I restart th...
Hi Donchik,
As far as I know, there is no compatibility issue between the GS724Tv3 switch and Realtek GBe PCIe LAN card. A new firmware version for the GS724Tv3 switch has been released which is the v5.4.2.25. I suggest you to try to upload it to your GS724Tv3 switch. You may download it here. Be reminded to perform a factory reset after updating the firmware then reconfigure it from scratch. Observe if same problem will occur.
Regards,
DaneA
NETGEAR Community Team
Hi DaneA,
a. I've hooked up other devices, but as they need to sit at the location for several days before the issue appears, I've not been able to isolate it.
b. Other PC's on the network do not appear to have this or similar issue.
c. Yes Latest LAN drivers installed.
d. I think this is the latest
| Model Name | Boot Version | Software Version |
| GS724Tv3 | B5.1.1.1 | 5.4.2.19 |
e. Yes as part of the latest firmware update.
Thanks for the assistance,
D.
Hi Donchik,
You may try to open command prompt on the PC where the problem appears that is connected to the GS724Tv3 then do a continuous ping to the IP address of another PC that is also connected to the GS724Tv3 and vice versa. Observe which PC will time out first and which PC will still continuously ping.
Regards,
DaneA
NETGEAR Community Team
Sorry DaneA, but what will that achieve?
Are you hoping to keep the port open? Do you suspect a timeout issue?
I do find it odd that the switch does not appear to report any errors in the cable, but the PC thinks it has a full disconnect, such as an open/unplugged lead.
Thanks
D.
Hi Donchik,
For further isolation of the problem, setup port mirroring on the GS724Tv3 switch to monitor the port activity using Wireshark. Select a port as a source port on the GS724Tv3 switch where the PC (wherein the problem appears) is directly connected. Then, select another port as a destination port on the GS724Tv3 switch where a PC with Wireshark installed in it is directly connected. Observe if same problem will occur. It would be best that Wireshark could capture the packets on the event the problem occurs from the source port.
Kindly access this article on how to set up port mirroring. You may download Wireshark on this link. As reference, you may check this link I found online on how to use Wireshark.
For the captured packets to be analyzed, kindly open an online case with NETGEAR Support at anytime. Attach the captured packets from Wireshark on the case you have opened to be analyze by the NETGEAR Support team.
Regards,
DaneA
NETGEAR Community Team
Hi Donchik,
Just want to follow-up on this. Were you able to do packet capture and open an online case with NETGEAR Support as per my suggestion?
Regards,
DaneA
NETGEAR Community Team
Hi DaneA,
Been reading the links you sent me, but to be honest, I'm totally out of my depth with this.
I'm very unclear about what I need to do with the fort forwarding, and concerned about wireshark ahd the privacy concerns relating to its use, especially if I configure it incorrectly.
I would not be comfortable to proceed down this route, and me simply raise a warranty claim to get the switch exchanged.
Many thanks,
D.
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