Can not connect to Network Drive

Connectivity is good , I can manage network drive through browser and IP
address is okey too.

The problem is that when I try to get to it through the Server network or an
all ther refences to the network drive that previosly wored fail with error
say Location is not valid.

under the network routing in advace option DHCP options in the general tab i
dont have any thign indicating inbound or outbound trafic ( I' not sure if
this would give any clue to the problems) all insigth is welcome

If networking is working why are you looking at dhcp settings? You would
only look at that if you didn't have network connectivity which you do.

Moving on, can you browse to the share and access it? I would suspect your
issue is credencials have changed or the path has changes and the shortcut
hasn't been updated.