Hi,

Since the begininng of the week, this issue appear 5 times per day .....

There is nothing in logs :

Time = 2019-07-11 13:36:29 12752s
H-Ver = MR6400 v2 00000000 : S-Ver = 1.0.19 Build 181219 Rel.59200n
L = 192.168.0.253 : M = 255.255.255.0
W1 = DHCP : W = 192.168.1.100 : M = 255.255.255.0 : G = 0.0.0.0

10    Jul 11 10:04:18    IPv6     INFO     prefix is NULL, can't start radvd and npd6
9    Jul 11 10:04:16    SECURITY     INFO     SIP ALG disabled
8    Jul 11 10:04:16    SECURITY     INFO     RTSP ALG disabled
7    Jul 11 10:04:16    SECURITY     INFO     H323 ALG disabled
6    Jul 11 10:04:16    SECURITY     INFO     TFTP ALG disabled
5    Jul 11 10:04:16    SECURITY     INFO     FTP ALG disabled
4    Jul 11 10:04:16    SECURITY     INFO     IPSEC Passthrough enabled
3    Jul 11 10:04:16    SECURITY     INFO     L2TP Passthrough enabled
2    Jul 11 10:04:16    SECURITY     INFO     PPTP Passthrough enabled
1    Jul 11 10:04:02    OTHER     INFO     System started

I've tried to remove the sim card and put it again : same issue

I've tried to remove the sim card and put a new one: same issue

The only way to get something working is to reboot the router.

This issue appear 1 week after the upgrade. Before ugprade firmware, the router has worked pretty well for more than a year without any issue like that

Thanks

Marcia, the link you provided only lists the current firmware version.

You advised the customer to downgrade firmware.

Please provide link for downgrade firmware

@Kevin_Z Hello,

I have the same issue with my router TL-MR6400. Can you send me a link to the previous firmware version ?

Thanks for your help!

@Kevin_Z http://support.tp-link.com/f/0ab25d6d8f/?dl=1 this link not working.PLease add LTE band locking support in mr6400 V2. Its avaible for V1

@Kevin_Z 

Hi Kevin,

Can you also help to provide the previous firmware to me as well? (i think the previous firmware I had was a 2017 version) There is no available previous firmware versions available on the official website and the link below does not work. 

I had tried to upgrade the firmware to v181219 below for MR6400 V2 due to issues with my router freezing every 15min or so. 

After upgrading to the latest firmware below, I can no longer connect to the internet, but the status below shows that I am connected. However no data is sent or received to any websites. Or it will try and then stop halfway. So I am now left with no internet. 

Many thanks for your help. 

Kevin_Z wrote

@grt @Brent0n 

 

Sorry for that. Below is the download link. 

http://support.tp-link.com/f/282787f6f4/?dl=1