The purpose of hp procure switch 2626

there is no default password on an HP switch. You can clear the password on a switch by powering on a switch and make sure it is done booting (you should see all the port light up for a short time in order down the switch when it is booted) then take a paper clip and press the clear button on the front of the switch. that will clear any password left on the switch

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HP ProCurve Switch 2600 Series Installation and Getting Started Guide

Page 1-9

ftp://ftp.hp.com/pub/networking/software/59908821-0904.pdf

Clear Button

This button is used for these purposes:

Deleting Passwords - When pressed by itself for at least one second, the button deletes any switch console access passwords that you may have configured. Use this feature if you have misplaced the password and need console access.

HP 2626 do not have a default IP address, you have to set the IP address on an enterprise class business switch. You can find the manual for your switch at http://www.hp.com

There is no default password. If a password is set you either need to know it or have physical access to the switch

check all power connection its connected in mother board maybe loose connection remove and re fix it will work

What do you need it configured to support? Multiple subnets? VoIP support?
Here's an example to support 2 subnets, VLAN 1 Data and VLAN 2 Voice. This switch is the VLAN router for the site and it is also the default gateway for all the devices on the network.

show running-config

Running configuration:

; J4899A Configuration Editor; Created on release #H.10.50

hostname "HP 2650 dot 11 layer 3"
snmp-server contact "Your contact info here"
snmp-server location "Server Rack - Upper Switch"
time timezone -5
time daylight-time-rule Continental-US-and-Canada
interface 49
name "Uplink to HP2650 port 49 - 192.168.105.12"
flow-control
exit
interface 50
name "Uplink to HP2650 port 49 - 192.168.105.13"
flow-control
exit
ip routing
timesync sntp
snmp-server community "public" Unrestricted
vlan 1
name "Data"
untagged 1-46
ip address 192.168.105.11 255.255.255.0
ip helper-address 10.50.3.2
tagged 49-50
no untagged 47-48
exit
vlan 2
name "Voice"
untagged 47-48
ip address 10.50.3.11 255.255.255.0
ip helper-address 10.50.3.2
tagged 1-46,49-50
exit
ip route 0.0.0.0 0.0.0.0 192.168.105.1
spanning-tree Always turn on Spanning Tree
spanning-tree priority 0 This switch is the master Spanning Tree operator.
password manager
password operator

You should have gotten a cable with the switch. If you have a light blue Cisco cable, that will work.

or you can telnet into the switch.

from DOS command run a (arp -a) and it will show you the MAC address of the switch

You'll need to obtain a comms lead - connects into the console port of the switch then into an RS232 port on your laptop. Then, you will be able to connect using hyper terminal and you can give the switch an IP address, username, etc. Even a hard-reset won't allow you to configure an IP address as by default it needs to be configured through the lead. Will they not talk without being configured? If you just hard reset them, they should just behave as unmanaged switches.