we had the same problem also after installing a new router, my colleague fixed by adding the following config line:
ip tftp source-interface interface_from_where_you_manage_router (in our case it is a Loopback).
THIS WORKS FOR ME
Thank you for this. Specifying the correct source interface worked for me:
RT01(config)#ip tftp source-interface GigabitEthernet0/0.1
RT01#copy startup-config tftp
Address or name of remote host ? 192.168.1.2
Destination filename [rt01confg]?
19118 bytes copied in 1.040 secs (18383 bytes/sec)
I had similar issue .I have done two things one is disabling firewall service another i noticed that the tftp server(mine solarwind) using binding x.x.x.x/32 as the mask.
So i put x.x.x.253/32 as the tftp server ip and router interface ip as x.x.x.254
It worked and i was able to copy files .
Reply if it fix your case too..
I found that my file was larger than the TFTP server could handle. It could only handle 32MG and my file was 200MG. I had to get another TFTP server.
Please help me , i am facing issue cisco switch ws-c3850-24xs , need for ios backup plz help .
I tried all those suggestions w/o any luck... I found out (the hard way lol) that from an isr, I had to increase the block size: ip tftp blocksize , default is ~512, make it 8k, https://www.cisco.com/c/en/us/support/docs/wireless/5760-wireless-lan-controller/117636-technote-tftpfile-00.html
1. Go to Windows Firewall with Advanced Security on the TFTP/FTP Server
2. Add New Inbound Rule.
3. Specify IP/UDP/TCP Protocol and the specific port to allow (e.g If you are using SolarWinds TFTP Server Software, It works on UDP Port 69).
It worked for me. Hope it works for others if there is no other Firewall/ACL Rule implemented.
I was having this issue with a new switch and this fixed it for me
no service config
Sometimes when switch first boots it may try to load a config from a tftp server and never stops thus the socket timeout
Hello Dear if you want to solve this solution you have to watch the following video: