Model : TL-WDR3500

Hardware Version : V1

Firmware Version : 150518

ISP : HGC Broadband Hong Kong

I understand it sounds weird but it just happened to my TL-WDR3500...

by using the default SSID(TP-LINK_2.4GHz_XXXXXX) I will get a full speed download rate at 9x Mbps,

if I rename the SSID, the download rate will be decreased to about 10~11 Mbps, the only modification I did was changing the SSID,

however, if I change it back to the default name then I will have the download speed back again...

Could someone please help me out on this issue ? I've no idea how could this be happened and I don't know how to solve it...

Thanks in advance,