Putty to other router connection refused

[chueymtz]

I have about 15 c9300 cisco routers, in the past i've been able to ssh to the hq9300 router and in that router I can telnet to the others 

telnet 10.x.x.x, I haven't made any changes but now when I try to telnet to others i get a connection refused message and it doesn't allow me to connect. I am still able to access using the gui on each switch but I prefer using putty. Any suggestions?

[Georg Pauwen]

Hello,

hard to say. Are you using local authentication on the switches ?

Can you post the output of:

show tcp tcb

from the main router ?

[chueymtz]

tty1, virtual tty from host 10.76.2.30
Connection state is ESTAB, I/O status: 1, unread input bytes: 0
Connection is ECN Disabled, Mininum incoming TTL 0, Outgoing TTL 255
Local host: 10.76.2.1, Local port: 22
Foreign host: 10.76.2.30, Foreign port: 51621
Connection tableid (VRF): 0
Maximum output segment queue size: 20

Enqueued packets for retransmit: 1, input: 0 mis-ordered: 0 (0 bytes)

Event Timers (current time is 0x2A22AB5DE):
Timer Starts Wakeups Next
Retrans 36 0 0x2A22ABA08
TimeWait 0 0 0x0
AckHold 34 0 0x0
SendWnd 0 0 0x0
KeepAlive 0 0 0x0
GiveUp 0 0 0x0
PmtuAger 0 0 0x0
DeadWait 0 0 0x0
Linger 0 0 0x0
ProcessQ 0 0 0x0

iss: 2311799031 snduna: 2311802412 sndnxt: 2311802476
irs: 1273481197 rcvnxt: 1273485026

sndwnd: 63792 scale: 0 maxrcvwnd: 4128
rcvwnd: 3296 scale: 0 delrcvwnd: 832

SRTT: 991 ms, RTTO: 1068 ms, RTV: 77 ms, KRTT: 0 ms
minRTT: 0 ms, maxRTT: 1000 ms, ACK hold: 200 ms
uptime: 25672 ms, Sent idletime: 3 ms, Receive idletime: 5 ms
Status Flags: passive open, active open
Option Flags: Retrans timeout
IP Precedence value : 6

TCB is waiting for TCP Process (291)

Datagrams (max data segment is 1460 bytes):
Rcvd: 66 (out of order: 0), with data: 34, total data bytes: 3828
Sent: 43 (retransmit: 0, fastretransmit: 0, partialack: 0, Second Congestion: 0), with data: 37, total data bytes: 3444

Packets received in fast path: 0, fast processed: 0, slow path: 0
fast lock acquisition failures: 0, slow path: 0
TCP Semaphore 0x7F84D721AFF0 FREE