@atcm89 said in CAN NOT PING IN SAME VLAN ?:
Vlan 3 (11.11.11.0/24).
Unless that is a typo - or your hiding public space you actually own - that should be changed.. Its not good idea to use public space that is not actually yours.
There really is not good reason to do that either - since there is plenty of rfc1918 you could use..
10.10.10/24 would be valid rfc1918 space you could use.