C1000 Switch hstack Issues

[ITNetworkFanatic]

I installed two C1000-8T-2G-L and stacked them using SFPs from the front. Each time the two units are switched off, when powered back up, the second device becomes unknown on the stack. 

H/W Current
Switch# Role Mac Address          Priority    Version State
----------------------------------------------------------
*1 Master XXXX.XXXX.XXXX.XXXX 15          0     Ready
2 Member 0000.0000.0000 0 0      0           0      Removed

I then have to power them off simultaneously to bring them up. The hstack configurations are configured according to the Cisco's recommendations on this guide here:

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst1000/software/releases/15_2_7_e/configuration_guides/stacking/b_1527e_single_ip_management_c1000_cg.html

Both switches are running firmware code:  15.2(7)E4.

What am I missing here ?

[balaji.bandi]

what is the Logs you see ?

can you post the config ?

[ITNetworkFanatic]

27:35.208 UTC: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/7, changed state to down
Aug 17 07:27:38.685 UTC: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/7, changed state to up
Aug 17 07:27:39.685 UTC: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/7, changed state to up
Aug 17 11:30:59.194 UTC: %STACKMGR-4-SWITCH_REMOVED: Switch 2 has been REMOVED from the stack
Aug 17 11:31:01.196 UTC: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/1, changed state to down

[ITNetworkFanatic]

Current configuration : 10517 bytes
!
! Last configuration change at 11:51:16 UTC Wed Aug 17 2022
! NVRAM config last updated at 04:30:02 UTC Thu Aug 18 2022
!
version 15.2
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec show-timezone
service timestamps log datetime msec show-timezone
service password-encryption
!
hostname SWITCH
!
boot-start-marker
boot-end-marker
!
no logging console
no logging monitor
enable secret 9 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
!
username username privilege 15 secret 9 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
aaa new-model
!
!
aaa authentication enable default enable
!
!
!
!
!
!
aaa session-id common
switch 1 provision c1000-8t-2g-l
switch 2 provision c1000-8t-2g-l
stack-mac persistent timer 7
system mtu routing 1500
!
!
no ip domain-lookup
ip domain-name XXXXXXXXXXXXX
vtp mode transparent
!
!
!
!
!
!
!

spanning-tree mode rapid-pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
interface GigabitEthernet1/0/1-7

!
interface Vlan1
no ip address
shutdown
!

line con 0
logging synchronous
line vty 0 4
logging synchronous
length 0
transport input ssh
line vty 5 15
logging synchronous
transport input ssh
end

[balaji.bandi]

how is other side config ? same ?

what port you using to connect each other ?

[ITNetworkFanatic]

The other side of the config is the same.

Port 10.

[ceejay77]

Did you ever resolve this?  We have the same issue.