Why has my network died overnight????

in CCNA & CCENT
yesterday my lab of 2 x 2950 switches, 3550 switch, and 2x 2610xm routers was all working perfectly. got one computer connected to each switch, to which all 3 could access the internet, through the two routers. Turned all devices off overnight, as having 3 switches and 2 routers going in your bedroom (yes u can imagine) slightly loud.
This morning when i turned on the devices, the computers cant get access to the internet. i never changed the configs of the routers at all. i was playing about with VTP on the switches yesterday, so erased the 3 switches including the vlan data, incase i messed up something. nice new configuration on the switches and still nothing. i know data is passing through the network as they are receiving data, and can ping to outside ip addresses from all 3 switches through the two routers.
confused.....
This morning when i turned on the devices, the computers cant get access to the internet. i never changed the configs of the routers at all. i was playing about with VTP on the switches yesterday, so erased the 3 switches including the vlan data, incase i messed up something. nice new configuration on the switches and still nothing. i know data is passing through the network as they are receiving data, and can ping to outside ip addresses from all 3 switches through the two routers.
confused.....
0
Comments
This is always fun and good for experience, fixing your own problems.
cheers