Enhancements: 

• Assigns the service port (OOB port) IP address to 0.0.0.0 by default. As a fallback, if the service port is connected and the DHCP request times out, the switch assigns the IP address to 192.168.0.239.  

Bug Fixes:

• Fixes an issue where the switch can go into a restart loop. 
• The stack is unstable after a restarted stack member comes back online. 
• The SFP link between the S3300-28X-PoE+ and XSM4348S switches is not restored after the S330028X-POE+ is restarted. 
• The DiffServ wizard in the UI doesn't work. 
• When the 10G/1G SFP module is used in an SDVoE environment, video tearing is observed. 
• After a cold restart of the M4300-24XF stack, communication over an LACP LAG fails. 
• Querier is not set when the IGMP-plus is configured for VLANs other than VLAN1. 
• When using an FQDN to access the switch or stack, the switches lock up or restart. 
• When a stack contains the M4300-52G, stack links experience issues with multicast load-balancing. 
• Fixes an issue that caused intermittent crashes in certain environments. 
• Stack ports of the switch don't work with DAC cables. 
• 40G stack links are not stable with QSFP BiDi modules. 

Known Issues:

• A new UI page added in the previous 12.0.11.x release under Routing > Multicast > Mroute Static-Multicast Configuration doesn’t display automatically after upgrading the switch firmware from 12.0.9.x to 12.0.11.x. Workaround: Clear the browser cache to view this newly added page.

Download Link: https://www.downloads.netgear.com/files/GDC/M4300/GSM_XSM4300_V12.0.13.8.zip

Firmware Update Instructions:

To update your product’s firmware, follow the instructions in your product’s user manual. To find your user manual, visit https://www.netgear.com/support/, enter your model number in the search box, and click the Documentation button on the product page.