Yum issue

Dear all,

I'm trying to install telnet in my red hat linux 7 with:
Code:yum install telnetthen I get this output with errno 256.
Code:Loaded plugins: langpacks
epel/x86_64/metalink | 41 kB 00:00:01
epel | 4.7 kB 00:00:00
local | 4.1 kB 00:00:00
zabbix | 2.9 kB 00:00:00
zabbix-non-supported | 2.9 kB 00:00:00
(1/7): local/group_gz | 136 kB 00:00:00
(2/7): local/primary_db | 3.6 MB 00:00:00
(3/7): zabbix-non-supported/x86_64/primary_db | 3.7 kB 00:00:00
(4/7): epel/x86_64/group_gz | 96 kB 00:00:02
(5/7): zabbix/x86_64/primary_db | 231 kB 00:00:06
(6/7): epel/x86_64/updateinfo | 1.0 MB 00:00:11
(7/7): epel/x86_64/primary_db | 7.0 MB 00:00:24
Resolving Dependencies
--> Running transaction check
---> Package telnet.x86_64 1:0.17-59.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=============================================================================================================================================================================================
Package Arch Version Repository Size
=============================================================================================================================================================================================
Installing:
telnet x86_64 1:0.17-59.el7 local 63 k

Transaction Summary
=============================================================================================================================================================================================
Install 1 Package

Total download size: 63 k
Installed size: 113 k
Is this ok [y/d/N]: y
Downloading packages:

Error downloading packages:
1:telnet-0.17-59.el7.x86_64: [Errno 256] No more mirrors to try.I've searched online and I tried to clean cache with
yum clean all, yum clean metdata, yum clean packages. yum clean headers.
then I updated yum with - yum -y update
still I get the same error.
What should I do?

Thank you