Cook up a quick FAQ to prevent the overload of similar question.
What speed that I will be upgraded to?
No confirmation is provided as of now. Pending for announcement.
As of now, 100Mbps got upgraded to 500Mbps. 300Mbps got upgraded to 1000Mbps.
Why I am not upgraded yet?
Upgrade is conducted in phase, please wait for more announcement.
Why I am not getting the speed that I want?
Test it using a good CAT5E/CAT6 LAN cable as wireless signal is subjected to signal interference and degradation.
How to get good speed over wireless network?
Upgrade to a better wireless router. Consider a good wireless adapter as well.
Most phones and laptops in the market can only perform 500Mbps max and that is on super good condition.
The Archer C1200 can do 500Mbps over WiFi just fine as close distance.
DIR-850L is kinda weak, consider an upgrade.
As for all the older routers, upgrade them.
What router should I buy?
I suggest something at least AC1750 and above. TP-Link C7/C9/C3150 and Asus RT-AC66U/67U/68U/86U/88U
For more router related question, refer to
this thread.