: Link is through but no data transfer or data loss.
: Radio Hang
:

• Reboot both IDU and ODU at both ends
• Check the Earthing status in IDU and ODU
• Check the Cat 5 STP Cable – grounded

: Link through but alert message as “Authentication Failure”.
: Link password Mismatch
:

• Reset the ODU to factory default
• Set same password on both the ODU

: Link is through but alert message as “Link Configuration” mismatch
: ODU S/W version is mismatching
:

• Upgrade the ODU to latest S/W version both ODU should be in same version

: Link through but “No Service” displaying
: Compatibility issue
:

• Check ODU and IDU Model
• F24/FCC/EXT Modem will communicate with F24/FCC/EXT only with IDU-E or IDU-C
• F24/FCC/EXT/POE Modem will communicate with F24/FCC/EXT /POE with POE only

: Service LED not glowing in IDU
: E1 connectivity problem
:

• Check the E1 cable properly inserted in IDU
• Check the E1 stream by providing backs

: Link fluctuating frequently
: Interference or obstruction
:

• Change the spot frequency and check the link
• Check the loss

: Device unreachable- displaying in win link Manager

:

• Check the cable by using LAN tester
• Bring down the ODU; power it on by using test cable and check

: Line is disconnecting while running link installation wizard

:

• Check the RSSI level by using LBC
• Check the Dipole

: More error blocks in TDM interface

:

• Check the E1 connectivity
• Check the RSSI level
• Change the spot frequency and reduce the RSSI

: BIT failed displaying on status

:

• Upgrade the S/w version and check

: RSSI is good but Link is still fluctuating

:

• Select Minimum band width rate
• Select adaptive data rate

: In Dual Radio, Firmware Upgrade page was not coming up

Pre-Requirements:
1. Cygwin 2. haserl Click here to download these utilities

Uploading Haserl file:

• Assuming “haserl” file loaded in c:\haserl folder.
• Close all Explorers (IE, FireFox , etc.,).
• Check Ping status of Dual Radio, after radio pinging, wait approx 1min to enable SSH.
• Open cygwin, type the following commands:
• cd /cygdrive/c/haserl/
• scp haserl root@<Dual Radio ip-address>:/usr/bin
• {If it will ask for conformation, give “yes”,
  Then it will ask Password       , give “ngn”. Default IP Address of Radio 192.168.1.100}
• Now open Web Interface of Dual Radio, select Administration -> firmware upgrade
• Upload latest firmware.

Error 2: haserl file busy
Solution: Close all Explorers, Reboot the radio

Error 3: haserl is not a regular file ( or ) haserl file not found
Solution: Check haserl file, where it was saved, Based on this give step 1.

Error 4:

IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that the RSA host key has just been changed. The fingerprint for the RSA key sent by the remote host is <MAC Addresses>

Please contact your system administrator.
Add correct host key in /home/deep/.ssh/known_hosts to get rid of this message. Offending key in /home/deep/.ssh/known_hosts:1
RSA host key for <ip-address of pc> has changed and you have requested strict checking. Host key verification failed.
lost connection

Solution: Give following command: (check colored path, it depends on PC) rm /home/deep/.ssh/known_hosts

: Firmware Upgrade filed!

:

• Telnet into radio: username: root, password: ngn (check latest username & password)
• Type following commands :
  • vi /sbin/upgrade-local.sh
    {Press “/if “, enter key}
    {Press “/”, enter key}
    {Press again “/”, enter key}
    {Press “o”, type “then”, Esc key}
    {Press “:x” , enter key }
• Open firmware upgrade page, upgrade latest firmware

: Radio Pinging but Web Interface not coming up

:

• Telnet into radio: username: root, password: ngn (check latest username & password)
• Type following command: /etc/init.d/S50httpd
• Open web interface now, select Administration -> firmware upgrade, Upgrade latest firmware

Note: If Step 2 result is : httpd already running ,then follow steps as follows :

• Connect one MicroRed-NGN Radio which is web interface is working ,to PC.
• Start Cygwin software.
• Type the following commands : (wait upto 1 min,after radio pinging)
• 1. rm -rf www
  2. scp -r root@<ip-address of working microred-ngn>:/www .
• Now connect fault MicroRed-NGN to PC, then type following commands :(wait upto 1 min,after radio pinging)
  scp -r www root@<ip-address of faulty microred-ngn>:/jffs2/
• Now reboot MicroRed-NGN

: IP Address /Subnet Mask Address Recovery

:

• Open radio screws ,connect serial cable
• Type following commands :
  • nvram get lan_ipaddr {it will shows IP Address}
  • nvram get lan_ipmask { it will shows Subnet Mask Address }

Iperf Commands :
At Server : iperf -s -w 200K -i 10
At Client : iperf -c <PC IP Address, which has running iperf server> -w 200K -i 10 -t 99999

: What to do if the resistance of earth pit is high
(above 3ohms)
: Resistance may have increased due to various reasons
:

1. By using a bigger grounding plate
2. By burying the ground plate as deep as possible
3. By having parallel ground plates with a distance of 10m between grounds
4. By using salt, charcoal etc., to reduce resisitvity
5. By using a combination of these methods