RDP/SSH disconnection with squid + icmp passthrough issue

[genseb]

Hi,

I've configured Pfsense with Squid (Transparent Mode + SSL splice all) and captive portal on only one interface WAN

(Computer) ==============> WAN (Pfsense) WAN ================> (router) 

Pfsense sets as computer GW and Router sets as Pfsense GW

So all traffic pass through Pfsense.

Squid logs fine and captive portal login page is well displayed and works. I can connect.

I'm currently encountering 2 issues.

The first one is that every minute, I can see that a disconnection happens on my RDP, SSH connection. So on ssh, I have to reconnect every minute...

The second "issue", is that when I enable captive portal, when I try to ping from my computer, request failed.
When I disable Captive Portal (Squid still working) I receive ping response.

I also notice that after several minutes of use, I need to suppress my connection in Status > Captive Portal because I receive web page error, more and more, until I restart.

Thanks for your help and suggestion.

Pfsense version: 2.4.4

[genseb]

Hi,

I've made lot of tests but my issue still pending.

What I've tried:

-check "Clear invalid DF bits instead of dropping the packets"
-Firewall Optimization options ==> Conservative
-Check "Disables the PF scrubbing option which can sometimes interfere with NFS traffic."
-Check "By pass firewall rules for traffic on the same interface"
-Check "Do not kill connections when schedule expires"
-Check "Disable Gateway Monitoring"
-Uncheck "Flush all states when a gateway goes down"

Result:
SSH connection still disconnect but after 15 minutes (instead of every 1 minute)
RDP still disconnect
Still can't ping through pfsense

[genseb]

Hi,

It seems that issue was that we use only 1 NIC (as WAN)

Since we've installed a second NIC and defined 1 NIC as WAN and the second as LAN, everything works well!

Seb