I am having the EXACT same issue. It's not a speed issue, or latency issue, it's a communication issue with the router. I have 3 Android tablets and 2 Android phones in the house all with the same issue. Running latest firmware 1.06. I upgraded from a Linksys router and did not have this issue. Please let me know if a fix for this is found.
2 Asus Nexus 7 tablets with latest Android versions
1 LG G3 smart phone with the latest Android version
1 Motorola Droid Maxx smart phone with latest version of Android
1 LG Pad 8.3 LTE with latest version of Android