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[Emman]

Hi,

Everytime I power off the extender or the PC or both, it keeps loosing the setup connection. The extender always says " can not connect to pc...". So I have to perform the setup connection again and it will connect fine. I had to do this everytime I want to use the extender with media centre of windows 7. Is this a known bug? Does someone else experience this problem?

Note:
I connect my extender and media centre through Linksys wireless N. Though I tried this as well using wired connection and still the same problem.

Any help please...

Cheers. 

[mrbillm]

I also have this problem. I will put in my security code for the network, but every time I turn the DSM-750 back on I have to select the network and put in the security code again. My phone will even keep the settings, but not the DSM-750.

Any help would be appreciated.

[Bowler]

I had the same problem.  I ended up accidentally fixing the problem when I got help on setting up the network/media player on my xbox 360.  My response from another thread is as follows:

_____________________________

What I ended up doing was opening all of the TCP and UDP ports (did it for the xbox 360 and it made the difference for this as well) and now it has worked great ever since.

My response from my last thread was:

I had a Xbox 360 before and had nothing but problems so returned it to try the DSM-750 instead.  In trying to set up the Xbox 360 they had me do the below and it didn't work, but it was already set when I re-installed the DSM-750.

In case it helps anyone else, I wanted to post what I did.  For Xbox 360 they had me open ports in Norton 360 (done by creating new rules with the specific ports) as well as opening ports on the DIR-655 in the virtual server.

For the DSM-750, in the FAQ there is a question that states: "How do I configure non-Microsoft Firewalls?" - in the answer a bunch of specific UDP and TCP ports are listed.  I went through the virtual server for DIR-655 and opened each of those and in Norton 360 I created new traffic rules to allow each of those specific ports (you can use spaces between port numbers to have more then one port per rule).

For anyone who is not sure how to open ports.  When I was dealing with the xbox 360, I just searched it for Norton 360 and found the answer online, and the d-link support people were helpful for the wireless router once I had the necessary port numbers in front of me.

I don't know that one or the other would have been sufficient, as I did both at the same time, and now that it is working, I don't want to mess with it.

Anyway, the end result is everything appears to be working for now.
___________

My 750 now works perfectly.  Turning on or off the 750 or the computer no longer loses the connection.

[Emman]

Thanks Bowler,

In summary the solution you outline is base on security. In my case, I don't even have a security measure in place. I even disable the built-in firewall of microsoft 7. I even connect the PC and DSM-750 on a unmanaged gigabit switch and still the problem exist.

Anyhow, thanks for your effort.

To the moderator...is there any fix for this?


Thanks Heaps

[saitoh183]

Did you try disabling your anti-virus?...i've read many places that it can cause the type of issue your having.

Also how did you disable the Windows Firewall?...turn of the service or just putting it to off in the Action Center? if you just turned it off in Action Center, try going into the Advance Firewall settings (type it in windows search) and make sure the Extender ports are all open and media center ports as well.

[sbillard]

I also had this problem (but I was still on Windows Vista at the time.) I was using the Microsoft Windows Live Onecare for security software. Even if I "disabled" the firewall I still got the problem. I was convinced it was an issue with the DSM-750, and since I live near D-Link I managed to convince them to look at the unit. Needless to say, it worked fine when in their shop.

Later for a totally unrelated resason I had to uninstall Onecare. Once that was gone and different security software was protecting my system the problem went away.

So, you need to figurer out what is being blocked. If memory serves correctly it was a boot protocol in my case. Enaable that and things will work. (BTW, I also ditched the replacement security software--to resourse intensive even for my i7 940! I am now running Microsoft Security Essentials. Absolutely no problems with the 750 and no manual configuration needed.)

[Emman]

Thanks guys but in my case as I mentioned before, I don't have security in place. These includes firewall, antivirus or anything about security. Windows 7 system is just a straight install and fully up to date. My DSM-750 still behaving the same.

Anymore suggestions out there please....

Thanks

[saitoh183]

you say you have no security in place...does that include your router?...which router you have. and is the router firewall disable and is upnp enable on it

[sbillard]

You say you don't have any security in place. But unless you have disabled it, Windows 7 comes standard with a firewall enabled.

[fly]

Have you tried connecting on a different computer running W7?

[Emman]

Hi Guys,

I'm back from a holiday and again trying to fix this issue. But first, thank you all for your responses. As I mentioned before, I don't have any security measures on my windows 7 PC. Though I am using a linksys router, by default it has internet facing firewall which from my understanding it blocks any incoming intruder but allowing all internal network to communicate to each other.

Again I would appreciate any inputs.

Thanks.

[schmecky]

I went through this same issue a while back http://forums.dlink.com/index.php?PHPSESSID=33e8d18ab818d546d3b35fd0ff1d08e2&topic=6437.0

It never got fixed 100% but there are some things I did:

Disconnect ALL but 1 video output (I had HDMI and Component out hooked up, I've sinced removed the component cables)  This seems to have helped.

Power off the unit when done watching TV.  Now when I'm leaving the room, I hit the power-off on the remote instead of leaving the unit running.

Not sure why at all, but it seems both of those things dramatically reduced how often my 750 would "loose" its settings.  I know neither of those things make any logical sense, but it worked for me.

Also, just FYI - I don't use wireless, I use ethernet, and I removed the antennae from the unit to lower the chances of any other wireless devices in the house causing any interference.

Seems these 750 buggers are very sensitive, and it doesn't take much to upset them, but when they work they are great! 

Good luck!

[aeglyss]

I'm on Vista, not Windows 7 but since the issue seems to be related I'm posting here. My DSM-750 does not only lose the set-up connection, as other people have described here, it does in the middle of playback. For the second time now I was in the middle of watching an HD movie when the screen went black, then the DSM-750 rebooted and went to the connection setup wizard afterwards.
When it happened first I played back an HD Mpeg-2 file out of Media Center, in the second instance it was a Avi HD, played back straight out of the Media Lounge (not Media Player). The 2 common denominators that I see are that it happened with HD files, never with SD files, i.e. recorded tv (issues with the size?) and that in both instances I already had the DSM-750 on for a while - which refers a little to the previous posting about switching the unit off. Could this be related to a mechanical defect? A circuit or something overheating inside the unit?
Technical data: Media Center on Windows Vista Home Premium SP2 - DSM-750 with firmware 1.02.09 on wireless connection through DIR-825 router, 5Ghz band, Mixed 802.11n and 802.11a, channel width 20 Mhz
Any ideas?

[irok760]

I have the same problem.  I don't think it is a security issue since the 750 connects to the Win7 machine and works for awhile then when you turn off the 750 and turn it back on it cannot find the MC pc.  Can someone post what the fix is if there is one. 

Thanks

[irok760]

bump