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MaydmedoIT_69's avatar
Jun 12, 2026

M4250-26G4XF-PoE+ adding copper SFP

In an attempt to expand the port count of the switch, we have added two proper Netgear copper SFP modules. The switch recognizes them and show that they are supported. However, when an attempt to connect a device to the port, there is no connection established. At one point I was able to successfully connect a device and it had been working. The switch no longer wants to participate.

 

We have other modules here to test with as well and we get the same result. I have ruled out that it is a module issue because they shown as supported in the switch. I am under an impression that the firmware might have something to do with the behavior. I have not rolled back firmware yet but willing to do so.

 

Anyone one else have a similar experience? I know I am not alone because I have read many different threads online with the same type of complaint. Anyone found a solution? 

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