NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
MaydmedoIT_69
Jun 12, 2026Aspirant
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 con...
schumaku
Jun 12, 2026Guru - Experienced User
Hello MaydmedoIT_69 and welcome to the Netgear Community.
Experiencing a similar issue on a smaller model, a M4250-8G2XF-PoE+ on an SFP+ slot accommodating an original Netgear AXM765v2 for many months.
Firmware Version
13.0.5.26 <-- same issue on earlier firmware version
AV UI Version
2.2.15.16
Boot Version
1.0.0.11
The slot #10 looks workable, initially allowed to be operated as the trunk. Everything looks correct. Had to switch the trunk to a 1 GbE port instead...
Fun fact? Another no-name module (1G/10G capable) in slot #9 connecting a local PC with a 1 GbE adapter on a 2 meter cable works flawless.
MaydmedoIT_69 wrote:I know I am not alone because I have read many different threads online with the same type of complaint.
Have not spotted the related threads, admit I had not searched deep enough. Would you mind sharing some links please?
-Kurt
Related Content
NETGEAR Academy
Master AV-over-IP networking, multicast protocols, and troubleshooting to confidently deploy and manage AV networks.
Join Us!