D-Link DIR-655 :: Router Doesn't Support Network

I have decided to buy a new wireless N enabled wireless router after my house was cleaned out by some robbers. After a long investigation I decided on the D-link DIR 655 as it suited my basic needs the best and since I haven't decided on a broadband supplier yet this should sort any and all possibilities no matter what I choose...

After an equal amount of investigation I decided on a HSPA+ USB dongle only to find that the router does not support the network I have purchased it on. It thenalso seems that it doesn't support the E1820 Huawei dongle either... so fine... I go and buy a Huawei D105 tht should technically be able to connect via the WAN port and would act as an internet gateway. Brilliant.

Now I have tried everything.... static IP on the D105 with a static IP setup on the 655. Connects fine... according to the web interface but NO INTERNET. When I connect my laptop directly to the 105 via CAT5 it works beautifully. DHCP on the D105 with the same on the 655. Connecting... Establishing Link (Please Wait...) FOREVER without ever getting an IP on the 655 (according to the web interface again) ... must be the D105 thats faulty so again plug in the laptop and within milliseconds the IP is assigned and Internet is blazing along again.... The D105 is not Wireless N so I cannot use it as my primary AP and only allows 5 simultaneous wireless connections (that is reserved for my cellphones). Why should I anyway?? the DIR655 should work fine....

Even after having taken it to D-link support at huge cost and effort I still don't have a working rig.... Seems the consultant plugged the D105 straight into the LAN on the 655 and then set his laptop to the same static range to get it to work... SURPRISE - I know that works since plugging the laptop straight into the 105 does the same thing.... But this is not what I want... I want my 655 to be the primary DHCP server for my network and control the allowed workstations that are allowed access to the internet with a working gateway. Bridging is apparently also not an option as that option has been removed so I cannot even bridge my main subnet onto the D105's internet sbnet... What am I to do....

If the 655 3G setup supported more than 2 dongles I might hve been able to use that and not spend anouther R600 on the D105, if the WAN port actually worked in either static or DHCP modes with the D105 that also would have solved the problem and lastly if all else fails and there was still bridging I could hack my own setup together to do what I want. Seems like I was wrong in selecting the D-link product.

Then to make matters worse I find another product with double the features online for half the price that integrates the 3G capability into the route and support more than 2 different models. including all the new Huawei dongles....