I recently installed PI-Hole into Firewalla Blue and I was getting a complaint from my kids regarding slowness in internet access. I've had to reboot the box to get the speed back, but soon within a few hours, the slowness starts again.
I've checked the load of the box using Top, but the CPU usage is quite low, memory usage is about 70%, and the load is between 0.4 & 1.5. I pinged the box from my PC and there seem to be many request timeouts. I get about 1 to 5 request timeouts for every 5 to 10 normal responses which seem abnormal.
I wasn't sure, so I've reset the box and installed the PI-Hole again, but this time I didn't add any Blocking Rules except the default "Active Protect Rules". This time, I had no slowness for 2 days, but once I've added any blocking rule to any of the devices being monitored, the slowness begins.
Even after deleting the blocking rules, resetting the policy rules, rebooting help for a few hours, but the slowness begins again.
So this time, I had to reset the box and this time I had to give up PI-Hole.
Is there anyone seeing this issue?
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