Upgrade firmware of D-Link DIR-850L

Now it is time to upgrade D-Link router 850L to new version, 1.12WW.

Here is official download link

Look at the release notes:

Firmware: FW1.12.B05(Release)
Hardware: A1
Date:2014/10/06
Note:
1. Update CN channel table
2. Support No-IP DDNS server
Problems Resolved:
1. Fix gmx mail server issue.
2. Fix WAN/LAN IP conflict issue.
3. Fix HW NAT throughput issue
dir-850l-firmware-1.12
It is only for Hardware version A1.