Home Network Community > Wi-Fi Routers > Authentication failed, incorrect username or password
< Wi-Fi Routers

Authentication failed, incorrect username or password

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

Authentication failed, incorrect username or password

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Authentication failed, incorrect username or password
Authentication failed, incorrect username or password
2020-08-23 16:33:55
Model: Archer C20  
Hardware Version: V5
Firmware Version: 0.9.1 4.17 v0001.0 Build 200526 Rel.70733n(5553)

Internet Connection - Ethernet PPPoE

 

Hi, If i connect the Ethernet cable to my laptop, I am able to connect using the Username and Password provided by my ISP.

 

However, when i try to connect with the TPLink Router using the same Username and Password, I am not able to connect.

 

Have checked the Username and Password - It is correct (casesensitive, spaces, special characters - all checked).

 

This is the error log. Can anyone help?

 

1970-01-01 00:23:37 PPP Error ppp2
2 1970-01-01 00:23:37 PPP Information ppp2 rcvd [LCP TermAck id=0xe]
3 1970-01-01 00:23:37 PPP Information ppp2 sent [LCP TermAck id=0x3]
4 1970-01-01 00:23:37 PPP Information ppp2 rcvd [LCP TermReq id=0x3 "user (xxxxxx - this is the Username) authentication failed"]
5 1970-01-01 00:23:37 PPP Information ppp2 sent [LCP TermReq id=0xe "Failed to authenticate ourselves to peer"]
6 1970-01-01 00:23:37 PPP Warning ppp2 LCP down
7 1970-01-01 00:23:37 PPP Error ppp2 LCP down
8 1970-01-01 00:23:37 PPP Error ppp2 Failed to authenticate ourselves to peer
9 1970-01-01 00:23:37 PPP Information ppp2 rcvd [PAP AuthNak id=0x0 "Login incorrect"]
10 1970-01-01 00:23:36 PPP Information ppp2 sent [PAP AuthReq id=0x7 user="(xxxxxx - this is the Username)" password=<hidden>]
11 1970-01-01 00:23:36 PPP Information ppp2 sent [LCP ConfAck id=0x2 <auth pap> <mru 1492> <magic 0x7df95304>]
12 1970-01-01 00:23:36 PPP Information ppp2 rcvd [LCP ConfReq id=0x2 <auth pap> <mru 1492> <magic 0x7df95304>]
13 1970-01-01 00:23:36 PPP Information ppp2 rcvd [LCP ConfAck id=0xd <mru 1480> <magic 0x97f00607>]
14 1970-01-01 00:23:36 PPP Information ppp2 sent [LCP ConfRej id=0x1 <mrru 1600>]
15 1970-01-01 00:23:36 PPP Information ppp2 rcvd [LCP ConfReq id=0x1 <auth pap> <mru 1492> <magic 0x7df95304> <mrru 1600>]
16 1970-01-01 00:23:36 PPP Information ppp2 sent [LCP ConfReq id=0xd <mru 1480> <magic 0x97f00607>]
17 1970-01-01 00:23:36 PPP Information ppp2 sent [PADI Host-Uniq(0x00000789)]
  0      
 
  0      
 
#1
Options
5 Reply
Re:Authentication failed, incorrect username or password
2020-08-26 06:19:42

@siddeb 

 

Hello,

 

Double confirm the username and password again by dialing up on your computer directly, then try again to create a PPPoE connection on the C20 router if that works.

 

If it still shows authentication failed, send us the whole system log file and we will ask our engineer to help you out.

 

Thanks for your cooperation.

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
  0  
  0  
#2
Options
Re:Authentication failed, incorrect username or password
2021-03-29 04:37:33

@Kevin_Z I am getting the same issue... authentication error ....no authentication error with the old router...but wjith the new router...it says authentication error..

Password and username are correct

 

 

 

  0  
  0  
#3
Options
Re:Authentication failed, incorrect username or password
2021-03-29 06:30:57

@Akhilesh401 

 

Hi, as replied to siddeb, please double confirm the username and password again by dialing up on your computer directly, or remove the username and password on the old router, dial up again to confirm if you can still get the connection.

 

If that proves the username and password are correct, while it still shows authentication failed when dial up on the Archer C20, please send us the whole system log file, and we will ask our engineer to help you out.

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
  0  
  0  
#4
Options
Re:Authentication failed, incorrect username or password
2021-04-10 15:37:35

@Kevin_Z 
i just bought a archer c20 v5 today and I am facing the exact same problem. i reset my old router and used the username and password and it connected to the internet but it fails to authenticate on the new archer c20 router. Can you redirect me to where/how i can contact you(i.e, email or something?) and send you the log?

  1  
  1  
#5
Options
Re:Authentication failed, incorrect username or password
2021-04-12 01:42:55

@nibras 

 

Hi, you can contact the support team via email here:

https://www.tp-link.com/support/contact-technical-support/#E-mail-Support

 

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
  0  
  0  
#6
Options

Information

Helpful: 0

Views: 3243

Replies: 5

Related Articles
PPPoE : Authentication failed, incorrect username or password, although it connects on PC
11981 0
Cant connect to WiFi "Authentication failed, incorrect username or password"
23426 30
RE200 connecting problem (username or password incorrect).
7679 0
 username or password is incorrect (upon connection)
15849 0
Login failed
754 0
[ Failed Update ] Archer C20 V5 update failed !
3070 0
About Us
Press
Copyright © TP-Link Systems Inc. All rights reserved.