Hi marioshamb.
Sorry for late answer. Was busy - got a new pc last week - installed new hardware and software (graphics card, SSDs, HDD, then win8.1 + all programs, etc.). Had to solve some problems, myself.
---
I even tried with a Belkin wi fi stick from my DM 800,but with this one the signal was extremely low....
If your wifi stick had low signal and if you used the stick with your dreambox at its usual place of installation, then I guess the signal is just too low for a sufficient connection at this spot in the house.
Did you already try to get a wifi connection elsewhere with your dreambox (situated more closely to the router)? If connection works then, you,ll at least know that the dreambox´s wifi connector has not busted and the box was only placed at a blind spot in the house. (Then, off course - even buying a wfi bridge predictably wouldn´t help).
You may even test your box´s wifi connection at different places in the house without having lnb/sat cable attached, as long as you have a tv/monitor at hand with which you can control, what the dreambox´s menu shows.
But before carrying around unnecessarily your dreambox you may as well first try your other wifi devices (iPhone/Samsung) exactly at the place, where your dreambox usually is placed.
Do the phones still get a good wifi signal there?
a) If the signal is still good for the phones, then probably s.th. may be wrong with internal wifi connector of your dreambox and then a wifi bridge may be the cheapest, easiest and best solution (Netgear wnce2001 ~ 30 €).
b) If the signal is low for your phones at the place, where your dreambox is placed, then you would rather need a wifi repeater at home, that extends the range.
my sisters router(ZTE from the internet provider)
ZTE router (never heard of that company before - I just googled and found some offers at Amazon):
If your sister e.g. has UMTS router "ZTE MF60" - then maybe you and your sister together are using too many wifi connections already? (ZTE MF 60 allows up to 8 wifi connections at a time - this router is a device given e.g. to customers by provider O2).
Why I mention UMTS router? Because:
The only ZTE router for cable installed Internet connection that I found at Amazon, was the ZTE E5501 and this one was compareably so extremely cheap (20,49 €) that I can hardly think a provider gives it to his customers (where I live, they usually tend to give away far more expensive models to rely on for years, because their support/helplines are more expensive for them than giving away expensive quality devices).
Besides the possibility, that there may exist a better ZTE model, that I didn´t find, I am only judging the unknown ZTE 5501 device by it´s low price now, what may be not fair (it may be cheap, but work well - I can´t know).
That´s why I guessed, you may be using ZTE MF60 UMTS router
a) it´s a known provider´s device, b) it´s not toooo cheap ~ 40 - 60 €)
If so (ZTE UMTS router) - then 8 connections at a time only.
-------
If cable connected ZTE router (e.g. DSL / attached to fixed socket outlet):
DM 8000 detects the router but can not obtain ip.
You may try to set your router and your dreambox to fixed IP adresses. Perhaps s.th. is wrong with DHCP. You needn´t generally switch off DHCP in router, though.
You may just only shut off DHCP in wifi setup of dm8000 and then enter your own (not yet used) ip-address for dreambox, that lies in your router´s range of supported ip-addresses.
Then you could add your dreambox manually to yor router (in wifi setup of router "add devices").
Problem: To add a wifi device manually, you will first need the MAC-Address of this device (your dreambox).
To obtain this MAC address, you could temporarily attach your dreambox with LAN cable to your router (with DHCP settings still unchanged in dreambox and router) and then enter in Windows`command window (you need administrative rights for Windows):
arp -a IP-adr.of your Dreambox
When you know the address you can enter it in wifi setup of your router.
In your router you should afterwards activate an option called s.th. like "always give this ip address to this device", so that it won´t change any more unwantedly.
(I even use this option / a fixed ip-address for my box with LAN connection.)
Sorry again, that I can´t help better:mecry:.
Maybe I hopefully gave you some useful hints, what you may try (.. although I doubt it ..).