New Features and Enhancements:
- Default password must be changed when you log in to the switch for the first time.
- To configure SNMPv3, the authentication protocol must be configured as MD5 or SHA. The None option for the authentication protocol is no longer allowed.
- Changed the default setting of the Smart Control Center (SCC) management from enabled to disabled. Note: The SCC Utility can still discover the switch.
Bug Fixes:
- Unable to set the end time of the PoE timer to mid-night (00:00).
- Cannot use SNMP MIB to disable or enable PoE power per port.
- There is no rejection or warning when adding a new ACL rule beyond the maximum number of rules that the system can handle. The new rule disappears after a system reboot.
Known Issues:
- SFP+ model AXM765 cannot be used as 10G stacking.
[Workaround]: Use other SFP+ models AXM761, AXM762, AXM763 or DAC cable AXC761/AXC763 instead.
- RPS/AC hot swap sometimes (quickly unplug/plug) does not take effect after plug back APS1000W power cord.
[Workaround]: re-plug the APS1000W power cord slowly.
- Console hang happens in S3300 device, if we press the reset button repeatedly during reload.
[Workaround]: Power cycle the switch. Customer needs to be cautious not to press reset button multiple times during boot stage.
Notes:
- The released zip contains switch firmware (s3300v6.6.4.21.stk) and MIB files. Unzip the file to extract the switch image for firmware upgrade.
- Download v6.6.4.21 to both an active and inactive (backup) images when upgrading from v6.4.0.x firmware.
- Clear the browser’s cache to login the switch via the web GUI after updating the firmware to v6.6.4.21 from v6.4.0.x, v6.6.0.x, or v6.6.1.x firmware.
- See the detailed description about update the firmware in the S3300 User Manual of firmware 6.6.4.x (specifically, section "Smart M4300/S3300 Firmware Upgrade Procedure, which describes the detailed procedures regarding building mix-stack system between the S3300 and M4300 with 6.6.4.x firmware).
Limitations
- EAV (Ethernet Audio Video) feature only supported on a standalone S3300 switch. Standalone here means that all four 10G stacking ports are running in Ethernet mode.
- Only the smart switch that functions as the master unit (either standalone switch or master switch in a stack) can detect and manage an attached USB device.
- The USB device must support USB 2.0.
- The USB device must support the FAT32 or VFAT file type. The NTFS file type is not supported.
Firmware Update Instructions:
Download the new firmware 6.6.4.21 from NETGEAR product support website and store it on a local computer. Remember its location in the computer’s file system. Then unzip it to get the switch image “s3300v6.6.4.21.stk”.
Download Link : http://www.downloads.netgear.com/files/GDC/S3300/GS728TX_GS728TXP_GS752TX_GS752TXP_V6.6.4.21.zip
There are four methods to upgrade the new firmware from PC to the switch.
- HTTP
- TFTP
- USB
- SCC (Smart Control Center) Below are the steps to upgrade the firmware via HTTP, which is the most convenient method. For the other three methods, please check the IG and SW User Manual for details.
Below are the steps to update the firmware via HTTP, which is the most convenient method. For the other three methods, check the IG and SW User Manual for details.
- To use HTTP method, in the GUI select Maintenance > Download > HTTP File Download.
- Set the File Type as Archive or Software.
- Set the Image Name as image1.
- Select the firmware file s3300v6.6.4.21.stk that’s stored in your local computer via the Browse button, then click the Apply button to start firmware downloading.
The download takes several minutes. Do not power cycle the switch before. The success message shows up as below

- Repeat Steps 2-4. Set the Image Name to image2 and repeat Steps 3 and 4 to download the switch image s3300v6.6.4.21.stk to image2
- Select Maintenance > File Management > Dual Image > Dual Image Status to double check that 6.6.4.21 is correctly downloaded to both image1 and image2.
- If not, go back to Steps 3 and 4 to download the switch image again.
- Select Maintenance > Reset > Device Reboot.
- Set the Reboot Unit No. as All (default option); select the checkbox, and then click the Apply button.

The restart might take several minutes. Do not power cycle or reboot the switch before the process is complete.
- After the switch restarts, double check whether the firmware is updated correctly: a. Log in the switch. b. Select GUI page System > Management > System Information.
- Log in the switch.
- Select GUI page System > Management > System Information
