HIGH Latency :: WAN :: Connection Loss

[Hiteshk]

Hi All,

I'm a newbie on PFsense using it for the past 10 months or so. Everything working fine but a few weeks back I'm experiencing very high latency on the WAN interface. This happening very frequently every 5-20min intervals.

Isp --> Isp router --> pfSense --> My Lan n/w

if directly connect my isp router to my Lan n/w everything works fine.
I'm using bridge mode on isp router.

I have tried a few troubleshooting steps.

1. Disabling hardware checksum ( didn't work)
2. Changing WAN interface to other ( didn't work)
3. Replaced all the cables ( didn't work)

Sharing dpinger screenshots below.

Please help me out .
Thank you in advance.