ARCHER TL-MR400 V1 upgrade firmware problem

ARCHER TL-MR400 V1 upgrade firmware problem
ARCHER TL-MR400 V1 upgrade firmware problem
2018-08-29 06:33:16
Model :

Hardware Version :

Firmware Version :

ISP :

Hi All,

i have a problem with TL-MR400 v1. When I try to upgrade firmware with " Local Upgrade" BIN file

Archer MR400(EU)_V1_180720
or
Archer MR400(EU)_V1_180509

I obtain message :
--------------------------------------------------------------------------------------[/I]
"Error code: 4503
The uploaded file was not accepted."
--------------------------------------------------------------------------------------


With Online Upgrade.

Downloading file 100%, ok

Online Upgrade
Latest Version: 1.5.0 0.9.1 v0001.0 Build 180720 Rel.63339n

Modifications and Bug Fixes
1. Optimized the data roaming function with Orange.
2. Optimized the compatibility with O2(UK).

Notes
For TL-MR400(EU) V1.

[I]And I obtain message :

Invalid firmware. Please download the new firmware again




I can downgrade and upgrade with old firmwares before V1_180509

Perhaps the file size make this problem
Old firmware 2017 size : 60198ko

New firmware 2018 size : 60603ko

I tried with Internet Explorer, chrome and Firefox.

A solution or investigation, tech support team?
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