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can't ping TL-WR941ND

Posted: Fri May 27, 2016 1:55 pm
by pesky_89
hello,
few days ago i tried to flash a gargoyle or openwrt firmware, but something went wrong and my router is bricked.
i connected through serial and tried to flash via tftp, but by pc can't reach the router
i run printenv on router to check the ip
router ip: 192.168.1.10
server ip (my pc): 192.168.1.169
active eth: eth0

i set 192.168.1.169 on my pc with /24 mask and inserted the eth cable from my pc in router ports, but i cant ping 192.168.1.10 (tried wan lan1 lan2 lan3 lan4)
this means i cannot download the firmware via tftp

when i insert the cable into the router, the corresponding port led is blinking, meaning it has activity
pc and router are connected directly (no firewall / windows firewall is also disabled)

can anyone help with this issue?

Re: can't ping TL-WR941ND

Posted: Fri May 27, 2016 4:36 pm
by ispyisail
have you tried failsafe reset?

Re: can't ping TL-WR941ND

Posted: Sat May 28, 2016 12:15 am
by pesky_89
i can't failsafe
sys led is on for two seconds after power up and then it shuts down and only pwr led stays on (tried pressing qss / reset button, sys led still not blinking)

Re: can't ping TL-WR941ND

Posted: Sat May 28, 2016 12:32 am
by ispyisail
its can be tricky, keep trying

all else fails use a serial cable

Re: can't ping TL-WR941ND

Posted: Sat May 28, 2016 12:48 am
by pesky_89
hi
i connected through serial (failsafe not working) and tried to flash via tftp, but by pc can't reach the router
i run printenv on router to check the ip
router ip: 192.168.1.10
server ip (my pc): 192.168.1.169
active eth: eth0
i don't have layer3 connectivity between router and pc

Re: can't ping TL-WR941ND

Posted: Sat May 28, 2016 12:59 am
by Lantis
Is port 69 open on the computer that is acting as a server

Re: can't ping TL-WR941ND

Posted: Sat May 28, 2016 1:41 am
by pesky_89
Lantis wrote:Is port 69 open on the computer that is acting as a server
yes, i can tftp from my pc to my pc (tftp on himself)
port is layer4 in osi model
ping, which is layer3, is not working

Re: can't ping TL-WR941ND

Posted: Sat May 28, 2016 5:17 am
by ispyisail
if you are connected through serial and use putty

Image

There is not IP address used with a serial cable

Re: can't ping TL-WR941ND

Posted: Sat May 28, 2016 6:57 am
by pesky_89
Hi
Serial connection is ok.
But for tftp i need IP connectivity between router and pc
But i cant ping router and when router tries to acess tftp server, it fails
Modem is 192.168.1.10
PC is 192.168.1.169
This is The configuration from printenv

Re: can't ping TL-WR941ND

Posted: Sat May 28, 2016 7:41 am
by ispyisail
have you read the wiki?

https://wiki.openwrt.org/toh/tp-link/tl-wr941nd

During UBOOT "1-second" message, quickly key sequence: tpl to stop UBOOT from loading the kernel and go into uboot mode proper.