Hi all, i have a wifi problem with my E5186. After a few hours of connection, all devices connected to 2.4ghz barely reach 5mbps in download speed, 7mbps in upload speed. However, devices connected to 5ghz has decent speed at 50mbps always.

After restart, everything become normal for a period of 6 hours. Any solution?

I've been using E5186 for 5 months, and this is the first time i encounter this. any advice? thank you