The downloaded file is empty despite the server announced it should have been 15 MB

Hi,

My name is walter. From last few days i'm facin g sync activity error on my desktop clients stating as "The downloaded file is empty despite the server announced it should have been 15 MB"

b]Expected behaviour[/b]
Tell us what should happen : The sync showing cross mark as stating as The downloaded file is empty despite the server announced it should have been 15 MB

Actual behaviour
Tell us what happens instead : Normally it should sync with the server with out any errors but now its showing error.

Client configuration
Client version: 2.2.4
Client operating system: Windows 10

Server configuration
Operating system: Ubuntu 14.04
Web server: Apache/2.4.7 (Ubuntu)
Database: mysql Ver 15.1
PHP version: PHP 5.5.9
ownCloud version (see ownCloud admin page): 8.2.7
Updated from an older ownCloud or fresh install: Updated from older own cloud
Special configurations (external storage, external authentication, reverse proxy, server-side-encryption): No

ownCloud log (data/owncloud.log)

|0|All Clients Backup Check List|INST_SYNC|Down|1482176919|5858390d04f40|0|00055733ocja92dn61uu|4||0|0|1482176894|||INST_NONE|
19:46:45|2200|All Clients Backup Check List/Backup Check List - Dec. 2016.xlsx|INST_SYNC|Down|1482176919|4c8ca87121e99ac98bbb2140357bda2f|342821|00109371ocja92dn61uu|4||0|342770|1482176880|||INST_NONE|
|0|PMTT Customer DB|INST_SYNC|Down|1482168758|585819b6c57cc|0|00098866ocja92dn61uu|4||0|0|1482176893|||INST_NONE|
19:46:46|1194|PMTT Customer DB/PMTT Customer Holiday Gift 2016.xlsx|INST_SYNC|Down|1481832139|d2ba83a6d2a773cea26a0a11b96040d9|15989027|00109646ocja92dn61uu|2|The downloaded file is empty despite the server announced it should have been 15 MB.|0|0|0|||INST_NONE|

=#=#=# Syncrun started until (0 msec)

|0|All Clients Backup Check List|INST_SYNC|Down|1482176863|5858395f65894|0|00055733ocja92dn61uu|4||0|0|1482176954|||INST_NONE|
19:47:45|2131|All Clients Backup Check List/Backup Check List - Dec. 2016.xlsx|INST_SYNC|Down|1482177006|6a934ac0f0015d95dbf52464f781fc18|342915|00109371ocja92dn61uu|4||0|342821|1482176919|||INST_NONE|
|0|PMTT Customer DB|INST_SYNC|Down|1482168758|585819b6c57cc|0|00098866ocja92dn61uu|4||0|0|1482176953|||INST_NONE|
19:47:46|1233|PMTT Customer DB/PMTT Customer Holiday Gift 2016.xlsx|INST_SYNC|Down|1481832139|d2ba83a6d2a773cea26a0a11b96040d9|15989027|00109646ocja92dn61uu|2|The downloaded file is empty despite the server announced it should have been 15 MB.|0|0|0|||INST_NONE|

=#=#=# Syncrun started until (0 msec)

|0|All Clients Backup Check List|INST_SYNC|Down|1482177045|585839925b1b8|0|00055733ocja92dn61uu|4||0|0|1482177014|||INST_NONE|
19:48:45|2016|All Clients Backup Check List/Backup Check List - Dec. 2016.xlsx|INST_SYNC|Down|1482177045|a20e218bcf11d37c0f5927834153b39d|342923|00109371ocja92dn61uu|4||0|342915|1482177006|||INST_NONE|
|0|PMTT Customer DB|INST_SYNC|Down|1482168758|585819b6c57cc|0|00098866ocja92dn61uu|4||0|0|1482177013|||INST_NONE|
19:48:46|1209|PMTT Customer DB/PMTT Customer Holiday Gift 2016.xlsx|INST_SYNC|Down|1481832139|d2ba83a6d2a773cea26a0a11b96040d9|15989027|00109646ocja92dn61uu|2|The downloaded file is empty despite the server announced it should have been 15 MB.|0|0|0|||INST_NONE|

=#=#=# Syncrun started until (0 msec)

|0|All Clients Backup Check List|INST_SYNC|Down|1482177116|585839d1cd46f|0|00055733ocja92dn61uu|4||0|0|1482177073|||INST_NONE|
19:49:46|2174|All Clients Backup Check List/Backup Check List - Dec. 2016.xlsx|INST_SYNC|Down|1482177116|bc1ccca154e00f89114df04c7fc52de2|342946|00109371ocja92dn61uu|4||0|342923|1482177045|||INST_NONE|
|0|PMTT Customer DB|INST_SYNC|Down|1482168758|585819b6c57cc|0|00098866ocja92dn61uu|4||0|0|1482177073|||INST_NONE|
19:49:46|653|PMTT Customer DB/PMTT Customer Holiday Gift 2016.xlsx|INST_SYNC|Down|1481832139|d2ba83a6d2a773cea26a0a11b96040d9|15989027|00109646ocja92dn61uu|2|The downloaded file is empty despite the server announced it should have been 15 MB.|0|0|0|||INST_NONE|

=#=#=# Syncrun started until (0 msec)

|0|All Clients Backup Check List|INST_SYNC|Down|1482177171|58583a0882de6|0|00055733ocja92dn61uu|4||0|0|1482177134|||INST_NONE|
19:50:46|2112|All Clients Backup Check List/Backup Check List - Dec. 2016.xlsx|INST_SYNC|Down|1482177171|75fafa8c53939685d84e87b60226c6ab|342970|00109371ocja92dn61uu|4||0|342946|1482177116|||INST_NONE|
|0|PMTT Customer DB|INST_SYNC|Down|1482168758|585819b6c57cc|0|00098866ocja92dn61uu|4||0|0|1482177133|||INST_NONE|
19:50:46|1210|PMTT Customer DB/PMTT Customer Holiday Gift 2016.xlsx|INST_SYNC|Down|1481832139|d2ba83a6d2a773cea26a0a11b96040d9|15989027|00109646ocja92dn61uu|2|The downloaded file is empty despite the server announced it should have been 15 MB.|0|0|0|||INST_NONE|

You sure you don't have encryption turned on? A config-report would be great. Anything special with this file, whatabout a new file with a similar size? rename the file?

@waltershaik any news from you?
Also note that 8.2.9 is the latest from 8.2.x series, you are using 8.2.7
You can also go to 9.x