I am having the same problem.  

Same problem here using a Dell 2135cn MFP as network printer 

Is Dell even watching these forums? or is this the type of support us consumers can expect from Dell?

I have been a longtime Dell supporter, personally have spent a lot of money myself and recommended to my clients many times, but the service that we consumers are receiving now is unacceptable.

Dell if you are reading could you:

A) Provide a solution to this printer not being useable with Windows 8.1 or any future Windows OS's

or

B) Issue a RMA to me so I can return this brick for a full refund and purchase a HP MFP that actually works with Windows 8.1

I have the same Problem with my Dell 3115cn.

Network scan worked just fine with Windows 8, does not work any more after upgrade to Windows 8.1. 

My daughters Win-7-PC still works with network scan in our home network, both 8.1-Machines don't. 

I also have a same problem with my Dell 2135cn. Could you guys please let me know if you found any solution. Thanks in advance.

Anyone tried to restore to recover to window 8.0 to see if that solves the error ?

There is a no way to downgrade Windows 8.1 to 8.0. I tried to reinstall a drivers, but it still gives me a same error.

As I see nobody in Dell cares about our issue. :emotion-45:

We have the same problem with the new C3765dnf.

Update: The scanner seems to magically work now. I would assume there was some update included with the latest round of Windows 8.1 updates. Can anyone else confirm if applying the latest Win 8.1 patches resolves the original scan issue?

BTW, I never received a RMA from Dell nor a statement from them after many attempts to resolve this problem.

Indeed, applying the latest Win 8.1 patches resolves the original scan issue. And also I never received a RMA from Dell nor a statement from them after many attempts to resolve this problem. Good to know Dell, my next prinder won't be one of your brand anymore.