TL-MR6400:"SIM Card Status:not found"

TL-MR6400:"SIM Card Status:not found"
TL-MR6400:"SIM Card Status:not found"
2019-07-19 18:48:12
Model: TL-MR6400
Hardware Version: V1
Firmware Version: 1.0.13 Build 180522 Rel.50341n

Hello,

i've a problem with my TL-MR6400 4g router.

since a couple of days the sim card is "not found" so the connection status is "disconnected".

 

the 4g router worked without issue since several months.

 

i tested the sim card on an other device and it's ok.

 

i tried to restore the configuration to factory with the same result.

 

the firmware can't be upgrade because the device is already at the latest V1 version.

 

I don't know what to do, if you already have the same issue, can you help me?

 

thanks in advance.

 

PS: hereunder the screenshot of the error.

 

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#1
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10 Replies
Re:TL-MR6400:"SIM Card Status:not found"
2019-07-22 03:22:31

@desp 

 

Could you please send us the system log of the MR6400 to do further analysis? Go to advanced-system tools-system log and hit save log, please send the txt file to us. 

 

Have you ever tried to change another sim card to do a comparison test?

 

How do you make it back to work after the error message pops up? 

 

Who is the sim card carrier? 

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#2
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Re:Re:TL-MR6400:"SIM Card Status:not found"
2019-07-22 11:07:19

Hello Kevin

thanks for your reply.

hereunder the systemlog.

 

PS: the device was off since few days before I restart to extract the log.


####################################################################
#                    TL-MR6400  System Log 
# Time = 2018-01-01  0:05:21 322s
# H-Ver = MR6400 v1 00000000 : S-Ver = 1.0.13 Build 180522 Rel.50341n 
# L = 10.168.6.1 : M = 255.255.255.0
# W1 = DHCP : W = 192.168.0.100 : M = 255.255.255.0 : G = 0.0.0.0
####################################################################

1st day 00:00:05     OTHER         INFO       System started
1st day 00:00:19     DHCP          NOTICE     DHCP server started
1st day 00:00:19     SECURITY      INFO       PPTP Passthrough enabled
1st day 00:00:19     SECURITY      INFO       L2TP Passthrough enabled
1st day 00:00:19     SECURITY      INFO       IPSEC Passthrough enabled
1st day 00:00:19     SECURITY      INFO       FTP ALG enabled
1st day 00:00:19     SECURITY      INFO       TFTP ALG enabled
1st day 00:00:19     SECURITY      INFO       H323 ALG enabled
1st day 00:00:19     SECURITY      INFO       RTSP ALG enabled
1st day 00:00:19     SECURITY      INFO       SIP ALG enabled
1st day 00:00:38     IPv6          INFO       prefix is NULL, can't start radvd and npd6
1st day 00:02:34     DHCP          INFO       DHCPS:Recv DISCOVER from 60:F1:89:08:C9:1B
1st day 00:02:35     DHCP          INFO       DHCPS:Send OFFER with ip 10.168.6.100
1st day 00:02:35     DHCP          INFO       DHCPS:Recv REQUEST from 60:F1:89:08:C9:1B
1st day 00:02:35     DHCP          INFO       DHCPS:Send ACK to 10.168.6.100
1st day 00:02:38     DHCP          INFO       DHCPS:Recv REQUEST from 78:0C:B8:92:A8:74
1st day 00:02:39     DHCP          INFO       DHCPS:REQUEST ip c0a82b56 is not in the address pool
1st day 00:02:39     DHCP          INFO       DHCPS:Send NAK
1st day 00:02:39     DHCP          INFO       DHCPS:Recv REQUEST from 64:B8:53:C8:1B:0E
1st day 00:02:40     DHCP          INFO       DHCPS:Send ACK to 10.168.6.105
1st day 00:02:40     DHCP          INFO       DHCPS:Recv DISCOVER from 78:0C:B8:92:A8:74
1st day 00:02:41     DHCP          INFO       DHCPS:Send OFFER with ip 10.168.6.101
1st day 00:02:41     DHCP          INFO       DHCPS:Recv REQUEST from 78:0C:B8:92:A8:74
1st day 00:02:41     DHCP          INFO       DHCPS:Send ACK to 10.168.6.101
1st day 00:02:47     DHCP          INFO       DHCPS:Recv REQUEST from C8:B5:B7:4C:FF:9C
1st day 00:02:48     DHCP          INFO       DHCPS:REQUEST ip c0a82b03 is not in the address pool
1st day 00:02:48     DHCP          INFO       DHCPS:Send NAK
1st day 00:02:48     DHCP          INFO       DHCPS:Recv DISCOVER from C8:B5:B7:4C:FF:9C
1st day 00:02:49     DHCP          INFO       DHCPS:Send OFFER with ip 10.168.6.102
1st day 00:02:50     DHCP          INFO       DHCPS:Recv REQUEST from C8:B5:B7:4C:FF:9C
1st day 00:02:50     DHCP          INFO       DHCPS:Send ACK to 10.168.6.102
 

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#3
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Re:Re:Re:TL-MR6400:"SIM Card Status:not found"
2019-07-23 02:08:28

@desp 

 

Is that the system log of the MR6400 once it lost connection and got the error message? If not, please re-send us a system log of the MR6400 after the unstable connection issue.

 

Meanwhile, you can try to degrade the firmware of the MR6400 to give it a shot. 

https://www.tp-link.com/en/support/download/tl-mr6400/v1/#Firmware

Note: You can install firmware 160322.

 

Any further problem, please let us know. 

 

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#4
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Re:Re:Re:Re:TL-MR6400:"SIM Card Status:not found"
2019-07-23 20:46:18

hello,

yes, this is the log when the connection is lost because the 4G connection is never ok!

here is a new post of the log but there is nothing about errors with 4G connection...


####################################################################
#                    TL-MR6400  System Log 
# Time = 2018-01-01  9:27:07 34028s
# H-Ver = MR6400 v1 00000000 : S-Ver = 1.0.13 Build 180522 Rel.50341n 
# L = 10.168.6.1 : M = 255.255.255.0
# W1 = DHCP : W = 192.168.0.100 : M = 255.255.255.0 : G = 0.0.0.0
####################################################################

1st day 00:00:05     OTHER         INFO       System started
1st day 00:00:19     DHCP          NOTICE     DHCP server started
1st day 00:00:19     SECURITY      INFO       PPTP Passthrough enabled
1st day 00:00:19     SECURITY      INFO       L2TP Passthrough enabled
1st day 00:00:19     SECURITY      INFO       IPSEC Passthrough enabled
1st day 00:00:19     SECURITY      INFO       FTP ALG enabled
1st day 00:00:19     SECURITY      INFO       TFTP ALG enabled
1st day 00:00:19     SECURITY      INFO       H323 ALG enabled
1st day 00:00:19     SECURITY      INFO       RTSP ALG enabled
1st day 00:00:19     SECURITY      INFO       SIP ALG enabled
1st day 00:00:38     IPv6          INFO       prefix is NULL, can't start radvd and npd6
1st day 00:00:42     DHCP          INFO       DHCPS:Recv DISCOVER from C8:B5:B7:4C:FF:9C
1st day 00:00:43     DHCP          INFO       DHCPS:Send OFFER with ip 10.168.6.100
1st day 00:00:43     DHCP          INFO       DHCPS:Recv DISCOVER from C8:B5:B7:4C:FF:9C
1st day 00:00:43     DHCP          INFO       DHCPS:Send OFFER with ip 10.168.6.100
1st day 00:00:44     DHCP          INFO       DHCPS:Recv REQUEST from C8:B5:B7:4C:FF:9C
1st day 00:00:44     DHCP          INFO       DHCPS:Send ACK to 10.168.6.100
1st day 00:01:34     DHCP          INFO       DHCPS:Recv DISCOVER from 60:F1:89:08:C9:1B
1st day 00:01:35     DHCP          INFO       DHCPS:Send OFFER with ip 10.168.6.101
1st day 00:01:35     DHCP          INFO       DHCPS:Recv REQUEST from 60:F1:89:08:C9:1B
1st day 00:01:35     DHCP          INFO       DHCPS:Send ACK to 10.168.6.101
1st day 00:19:57     DHCP          INFO       DHCPS:Recv DISCOVER from 58:2F:40:81:9B:68
1st day 00:19:58     DHCP          WARNING    DHCPS:lease host name not found
1st day 00:19:58     DHCP          INFO       DHCPS:Send OFFER with ip 10.168.6.102
1st day 00:19:58     DHCP          INFO       DHCPS:Recv REQUEST from 58:2F:40:81:9B:68
1st day 00:19:58     DHCP          INFO       DHCPS:Send ACK to 10.168.6.102
1st day 01:15:56     DHCP          INFO       DHCPS:Recv REQUEST from C8:B5:B7:4C:FF:9C
1st day 01:15:56     DHCP          INFO       DHCPS:Send ACK to 10.168.6.100
1st day 01:49:40     DHCP          INFO       DHCPS:Recv REQUEST from C8:B5:B7:4C:FF:9C
1st day 01:49:40     DHCP          INFO       DHCPS:Send ACK to 10.168.6.100
1st day 03:12:10     DHCP          INFO       DHCPS:Recv REQUEST from C8:B5:B7:4C:FF:9C
1st day 03:12:10     DHCP          INFO       DHCPS:Send ACK to 10.168.6.100
1st day 03:45:33     DHCP          INFO       DHCPS:Recv REQUEST from C8:B5:B7:4C:FF:9C
1st day 03:45:33     DHCP          INFO       DHCPS:Send ACK to 10.168.6.100
1st day 04:45:33     DHCP          INFO       DHCPS:Recv REQUEST from C8:B5:B7:4C:FF:9C
1st day 04:45:33     DHCP          INFO       DHCPS:Send ACK to 10.168.6.100
1st day 06:06:09     DHCP          INFO       DHCPS:Recv REQUEST from C8:B5:B7:4C:FF:9C
1st day 06:06:09     DHCP          INFO       DHCPS:Send ACK to 10.168.6.100
1st day 06:38:43     DHCP          INFO       DHCPS:Recv REQUEST from C8:B5:B7:4C:FF:9C
1st day 06:38:43     DHCP          INFO       DHCPS:Send ACK to 10.168.6.100
1st day 08:01:13     DHCP          INFO       DHCPS:Recv REQUEST from C8:B5:B7:4C:FF:9C
1st day 08:01:13     DHCP          INFO       DHCPS:Send ACK to 10.168.6.100
1st day 08:34:57     DHCP          INFO       DHCPS:Recv REQUEST from C8:B5:B7:4C:FF:9C
1st day 08:34:57     DHCP          INFO       DHCPS:Send ACK to 10.168.6.100
1st day 09:25:18     DHCP          INFO       DHCPS:Recv DISCOVER from 78:0C:B8:92:A8:74
1st day 09:25:19     DHCP          INFO       DHCPS:Send OFFER with ip 10.168.6.101
1st day 09:25:19     DHCP          INFO       DHCPS:Recv REQUEST from 78:0C:B8:92:A8:74
1st day 09:25:19     DHCP          INFO       DHCPS:Send ACK to 10.168.6.101

 

i'm ok to try to downgrade the firmware, have you got a link to download the previous version of V1 firmware?

thanks in advance.
 

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#5
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Re:Re:Re:Re:Re:TL-MR6400:"SIM Card Status:not found"
2019-07-24 05:59:21

@desp 

 

Thanks for your reply.

 

The link attached in my last reply is the firmware for MR6400 V1, the current one is the latest firmware, you can download the older one and install it to give it a go. 

 

Click here to update the firmware. 

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#6
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Re:Re:Re:Re:Re:Re:TL-MR6400:"SIM Card Status:not found"
2019-07-27 10:20:51 - last edited 2019-07-27 10:22:18

Hello Kevin,

i downgraded the firmware to 160322 as you recommended but the problem is not solved.

to ensure, i tried to make a factory reset with the same result...

 

is there anything more to test before sending my device to trash can? ...

 

thanks a lot in advance.

 

PS: fyi, your link to download the previous versions didn't work, because it is directed to french version of site.

so i downloaded the firmware by an other way on the uk site.

 

 

 

 

 

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#7
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Re:Re:Re:Re:Re:Re:Re:TL-MR6400:"SIM Card Status:not found"
2019-07-29 01:14:36

@desp 

 

Thanks for your reply. Sorry  to hear that downgrade does not help.

 

I have to say there is not much we can do now, instead, please contact our tech support with the thread link to check whether a replacement is qualified. 

 

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

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#8
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Re:Re:Re:Re:Re:Re:Re:TL-MR6400:"SIM Card Status:not found"
2020-07-19 09:07:06

@Kevin_Z I have two of these routers. This appears to be a problem with the physical design of the SIM card slot. I have had continuous problems of the SIM card stopping being read/disconnecting whilst in use. it is a critical design failure. It would be good for TP link to acknowledge and address this and come up with a solution. 

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#9
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Re:TL-MR6400:"SIM Card Status:not found"
2020-08-13 12:35:53
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#10
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Re:TL-MR6400:"SIM Card Status:not found"
3 weeks ago

@Lulederrick 

Good day.

Did you have the same issue?

Have you ever checked whether there is any obvious broken part inside the sim card slot?

By the way, did you use the sim card holder and label to fix the sim card?

After that, you might need to contact the shop retailer to get it replaced first.

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#11
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