TP-Link TL-WR740N - Discussion | [wifirouter] Discussion, firmware, problem solving



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TP-Link TL-WR740N- Discussion

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A photo:
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Description:
The TL-WR740N is a combined wired / wireless network device that provides Internet sharing and combines the functions of a router and a 4-port switch. This router uses 802.11n technology and is compatible with all devices that support the 802.11b and 802.11g standards. It provides data transfer speeds of up to 150 Mbps, which is much higher than the speed of 11g devices, and allows you to enjoy applications such as video viewing, IP telephony and online games, anywhere in your home or office. Experience all the benefits of 11n technology with TP-LINK wireless devices!
Provides data transfer rates up to 150 Mbps
CCA technology improves wireless network performance by automatically preventing channel conflicts
WDS support for expanding your network
One-touch QSS quick setup
The priority function ensures the quality of sensitive applications such as video viewing and calls over the network
SPI firewall support and access control features
WPA / WPA2 encryption support
Full compatibility with devices that support the standards 802.11b / g / n

Specifications:
Hardware
Ports 4 10/100 Mbps LAN port
1 10/100 Mbps WAN port
Buttons Quick Protection Setting Button (QSS)
Reset button
External power supply 9V DC. current / 0,6A
Standards of wireless data transmission IEEE 802.11n *, IEEE 802.11g, IEEE 802.11b
5dBi antenna fixed omnidirectional antenna
Size (W x L x H) 174 x 118 x 33 mm
Parameters of the wireless module
The frequency range of 2.4-2.4835 GHz
11n signaling speed: up to 150 Mbps (dynamic)
11g: up to 54 Mbps (dynamic)
11b: up to 11 Mbps (dynamic)
EIRP (Wireless Power)<20dBm (EIRP)
Sensitivity (reception) 130M: -68 dBm with 10% PER
108M: -68 dBm with 10% PER
54M: -68 dBm with 10% PER
11M: -85 dBm at 8% PER
6M: -88 dBm with 10% PER
1M: -90 dBm at 8% PER
Wireless functions Enable / Disable broadcast, WDS bridge, WMM, Statistics
Wireless protection 64/128/152-bit WEP / WPA / WPA2, WPA-PSK / WPA2-PSK
Software features
WAN connection type Dynamic IP / Static IP / PPPoE / PPTP (dual access) / L2TP (dual access) / BigPond
DHCP Server, Client, DHCP Client List, Address Reservation
QoS (Quality of Service) WMM, Bandwidth Control
Port Forwarding Virtual Server, Port Launch, UPnP, DMZ
Dynamic DNS DynDns, Comexe, NO-IP
VPN pass-through PPTP, L2TP, IPSec (ESP Head)
Access Control Parental Control, Local Control, Host List, Access Schedule, Rules Management
Network security (firewall) DoS, SPI firewall
Filtering by IP Addresses Filtering by MAC Addresses Domain Filter
Binding IP and MAC addresses
Management Access Control
Office in place
Remote control
Other
Certificates CE, FCC, RoHS
Scope of Delivery TL-WR740N
1 fixed omnidirectional antenna
Power Supply
Information disc
Quick Installation Guide
System Requirements MicrosoftВ® WindowsВ® 98SE, NT, 2000, XP, Vista в„ў or Windows 7, MACВ® OS, NetWareВ®, UNIXВ® or Linux.
Environmental Parameters Operating Temperature: 0 ℃ ~ 40 ℃ (32 ~ 104 ℉)
Storage temperature: -40 ℃ ~ 70 ℃ (-40 ℉ ~ 158 ℉)
Humidity (operating mode): 10% ~ 90% non-condensing
Humidity (during storage): 5% ~ 90% non-condensing
Firmware
Useful:

Topic Curator: Topic with no curator


Post has been editedAndrewP_1 - 21.06.19, 13:35
Reason for editing: Restoration of TP-Link TL-WR740N v4 after unsuccessful flashing of DD-WRT v3.0-r40048 std (06/16/19)



Rep: (45)
I want to share the experience of restoring TP-Link TL-WR740N v4 after unsuccessful flashing DD-WRT v3.0-r40048 std (06/16/19)


After reviewing the topic, I opened a couple of tabs with instructions, but I had to collect my own from a pile of other instructions.
Long sat on the DDWRT, killed him trying to update.
Got a dead router that blinks with all the lights.

What you need to do:

1) We connect the router to the PC via any lan (not blue), and configure the network as in the screenshots.
We put wireshark on wiretapping of that port into which the router was inserted.
About wireshark
How to listen to the program ports can google separately. The main thing is to install all its components when installing the program, because it will not start without them. Start - select immediately after completion of the scan the port into which the router is inserted.

Turn on the router with the reset button held down until the lock appears, release and see what wireshark writes us. We are looking for, at what address the router is and what file is looking for)
The logs show that the router is listening to 192.168.0.66 (192.168.0.86 can also be listened to by other routers, but most likely the first option. Do not miss if you own an English or translator), and is looking for a surprising file wr741ndv4_tp_recovery (in other instructions it is different ).
Turn off the router and go further.

I could not restore the router until I disabled version 6 / ipv6 ip (see page 2 for a screenshot).
Network settings
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2) Download Tftpd32 and launch it for recovery as administrator and do it as in the screenshots (click on our firmware and click cancel, as it should).
I attach the archive with the program and firmware WR740N v4 (drain) without boot which I found on the forum.
Attached file1.rar(3.85 MB)

Tftpd32 setup
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The file with the firmware, respectively, is signed with the name that was found out in paragraph 1 (in the wireshark logs, look for something similar to my name)

3) We perform everything as on the screen, then press the reset button on the router and turn it on until the lock appears.
We look at the wireshark logs (if they are not there, something is wrong), the Tftpd32 program itself did not give me any firmware download bars.
If you see the picture as in this screenshot, then the router is flashed and restarted. We are waiting for 5 minutes. Roll back the PC network settings to the drain and close the program.
Log wireshark
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Ip address to access the standard web interfacehttp://192.168.0.1/
We go in and sew everything your heart desires, even though the stock version of the firmware is ru.
Borrowed a couple of screenshots from uv. Steelk.
Suggestions for improving the post in koumiss.


Post has been editedAlex_red12 - 21.06.19, 03:39



Rep: (354)
Alex_red12 @ 06/20/19 9:14*
The logs show that the router is listening 192.168.0.66

This IP has already been shown thousands of times.
Why all these unnecessary extra movements?



Rep: (402)
Alex_red12 @ 06/20/19, 23:14*
I want to share the experience of restoring TP-Link TL-WR740N v4

this is plagiarism!
http: //forum.tp-linkru..effe1b71dc15d85e5509e0c



Rep: (35)
Herzz @ 06/21/19 12:20*
This IP has already been shown thousands of times.
Why all these unnecessary extra movements?

vovan26_ @ 06.21.19, 13:48*
this is plagiarism!


Well, a man came to this in this way, there is nothing bad in it. Well, that decided to share, someone can help. I have known about this method for a long time and used it repeatedly, but even in this manual I peeped something interesting for myself.



Rep: (45)
answer
* Herzz Yes, because on the other instructions I would have sat with a broken router. Ip then showed, but for example, until I started using that program, nothing happened ... And I saw in it that ipv6 was an obstacle for the firmware, and disabling it all went like clockwork. And if the address ends at 86 ?! Or another, because the firmware is non-standard? What about the file name? Why poke a finger in the sky? It is better to look at everything for sure for the particular case.

* vovan26_ I see this link for the first time; everything was written by hand. Screenshots and text are similar, but why plagiarize right away? The firmware process is not so versatile. I myself have the server program as on the screenshots of your link did not display the download process, so I looked in the shark. And I did lend a couple of screenshots, mentioning a person in the post.


Post has been editedAlex_red12 - 21.06.19, 16:51



Rep: (29)
It is worth it.
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Tell me how to return to stock (factory firmware)



Rep: (335)
romashko1978 @ 06.24.19, 9:01*
how to return to stock
TP-Link TL-WR740N - Discussion (Post Herzz # 60304702

Post has been editedvaleramalko - 24.06.19, 08:29



Rep: (1)
M.E.S @ 06.20.19, 21:12*
juzat vpn, good he is unlimited

Where is this vpn find ???
I know the built-in opera, but it works only within the browser, and which one do you have?



Rep: (35)
pon4ik625 @ 06.24.19, 21:04*
Where is this vpn find ???
he also wrote that VPN is spinning on his leased VPS server. Find anywhere you can. A lot of VPS providers, but the rates are different.



Rep: (1)
* Dreyk007 , I do not understand at all, I do not rummage at all in a network card ...
I hear about VPS for the first time, in the technique of sharyu, but in network communications in any way (.
It is necessary to make up)



Rep: (2)
All the best, suddenly a router, a full corpse, suddenly stopped working. Power Supply? Or throw in the trash than trying to revive him, who will tell?



Rep: (335)
at17 @ 06.25.19, 22:54*
Power Supply?
You can check it with a tester, preferably under load, i.e. measure the voltage when connected to a router (you have to disassemble the router), or connect a known-good unit to the router and check it.


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