Suddenly Some computers cannot connect to interne
I have a pc based pfsense 2.3.4 which I used in in the school. MY pfsense is very working for almost a year when suddenly some of computer cannot to the internet. It is very weird since pfsense doesnt show any error on ths screen, The problem is how can I fnd the problem since the pfsense is very working and suddlenly 20 % only can connect to Interne but not all. Ive reinstalled the pfsens but it still fail. hope you can solve me on thsi problem
Without details ?
Like : do your PC's that don't work obtain an IP (given en by pfSense) ?
At the same time, what are the (DHCP) logs showing ?
Cables ans switches are ok ?
General settings ? Network layout ?
What packages ?
I would probably start looking in the DHCP logs. Phrases like "no free leases" are bad news.
Other than that you will need to employ some basic network troubleshooting steps to determine where the failure is.
drop down to the bottom of status–>dhcp leases
check the # of leases in use & verify how many you have available
Are all affected PCs on the same switch? Could be a dead/unplugged switch and not pfSense at all… Need more details!