Why am I losing Wi-Fi router connectivity every 5 minutes?

I am experiencing an issue where it seems that every five minutes (basically to the second) I lose the ability to ping my router, as well as google dns ( 8.8.8.8 ), for about 20-30 seconds. This issue does not coincide with my Wi-Fi changing channels, nor changes in the RSSI or noise. It happens at the same exact time for multiple laptops, so I know it's not a single device. I have a AT T BGW 320-500 router, which does not have uPNP. My router logs are filled with Generic Discards (TCP), where the source IP addresses show up on AbuseIPDB as malicious IPs. As well as the occasional Other DoS at

Question by mobeets on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.