Having connection issues with all apps on my Xbox 360

I have the same issue.

Xbox 360 connected to router via cable.

Lenovo laptop running 8.1 connected to router via wireless.

Lumia Icon (Windows phone) connected to router via wireless.

All correctly using the same Microsoft account.

The phone can connect to the 360 just fine, the laptop's smartglass app cannot locate the 360. I have no idea why. The 360 network configuration is set to automatic. How am I supposed to get my PC app version of smart glass to connect to the 360?

I'm having the exact same issues. The Xbox 360 Smartglass app worked great for streaming music and videos from my Laptop PC running Windows 8.0 to our Xbox 360, but since having upgraded to Windows 8.1 I can't get it to work correctly at all, even after
uninstalling and reinstalling the app. Oddly enough I can connect to the console just fine through the Xbox 360 Smartglass app on my Windows Phone. Problem is I can't stream anything from my phone to it once I've made a connection, but perhaps that could be
because I have nothing native on it and everything I do have in the way of music and videos is in the cloud? I don't know, but methinks it's an app issue for the PC and that Microsoft is just letting it go as an unofficial way of telling 360 console owners
they are no longer supporting the platform and to upgrade to the Xbox One if you want a Smartglass app that works.

having the same issue. I have searched the forums and used google to try to search for a solution to no avail. my 360 is already set to allow smartglass app connection. I have reinstalled xbox 360 smartglass on my windows 8.1 machine (lenovo lynx K3 tablet).
the xbox 360 smartglass app on my android device (galaxy s3) can connect just fine. (had a similar issue with the xbox one smartglass app on my tablet, but found that to be a software firewall (comodo) issue. with the 360 smartglass app, I have tried disabling
the firewall and I still get a message the app cannot find the console). when I check the properties of the app in the task manager, it points to a folder of where it was installed, and not an executable. not sure if this is what is causing the issue. both
the 360 and the tablet (I have even been prompted by the app to re-sign in and I used the same account information)are signed in under the same account and are on the same wireless network. and again, I can sign into the xbox one smartglass app just fine after
I resolved the firewall issue (to allow the application associated with the app to be allowed connection). I have also reset my router (as I found other suggestions in other posts advise to do. I feel as I have exhausted every conceivable possibility, and
yet, still does not work. HELP!!!!

I'm having this issue too. Xbox 360 is connected to the router with ethernet cable, devices are over wi-fi, 5ghz. Nothing will connect, Windows 10 app, iPad 2 app. Application won't run on my iPhone anymore with iOS 11.

Same issue as the rest of you. I am trying to connect using Windows 10 laptop (version 1709 and connected ehternet) and Windows 10 Surface (versión 1709 and connected wifi). My Xbox 360 is connected to the internet via Ethernet. The 360 Smartglass
app will bring up my profile but will not connect to my Xbox 360 (console settings allows for Smartglass connectivity)