Completely newbie - need help in configuration

Hi Guys,

I am really impressed by OPV capabilities (and NAS in generally). After long research i've decided to use OMV as my first NAS diy system.
My old HP DC5750 is a base (4gb DDR 2 RAM, Athlon 6000+ (AM2), and Samsung HD753LJ 750gb Storage).

Now SMB is working, but i have serious problem with transfers (Ca ~2Mb/s of uploading via WIFI from my MSI GP70 pro to NAS).

What can be a bottleneck in this case?

I checked via ethernet, 10-11Mb/s. It can be better, right?
NAS(i mean HP) is connected via ethernet to TP Link TD-W8910G v2 00002200 - maybe my router is a problem in this case?

Thank you for your answer. To stay completely honest - i have no idea how to do that. Can you explain step by step?

>>> *************** Error ***************
Failed to execute command 'export LANG=C; export DEBIAN_FRONTEND=noninteractive; apt-get --yes --force-yes --fix-missing --allow-unauthenticated --reinstall install openmediavault-omvextrasorg 2>&1': Reading package lists...

Building dependency tree...
Reading state information...

Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
openmediavault-omvextrasorg : Depends: openmediavault (>= 3.0.26) but 2.2.5 is to be installed
E: Unable to correct problems, you have held broken packages.
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