re: Trouble with Cisco switch

When it fails there is No internet access nor network access...however If we use a secondary public dns (8.8.8.8) then we regain internet access... no seperate vlans... the unmanaged switches are on seperate homeruns.... it happened again today , however this time only one of the unmanaged switches went down... also I've noticed that one computer on the side that went down is connected but the connection is so slow to connect that it's unusable.