Running latest version of 360 for Windows 11 home.
Miracast screen share only works if I disable Norton.
Can somebody please help me get this working again - only a problem since the new version of Norton installed - nothing on my network has changed.
Small update:
Tried using a rule to allow full net access to “C:\Windows\System32\WUDFHost.exe” — which is what Miracast evidently uses to cast - and it still does not work.
Only thing that works is turning off Norton.
Same here; worked before; now must disable Norton.
I wound up restarting my PC and now Miracast doesn’t work at all. Even with Norton disabled.
These problems all started with the new Norton. Absolutely frustrating - especially when you are paying for this stuff to work.
Same here, very frustrating; spent some time with chat-support, so far no luck fixing this either. Surely someone at Norton in the QA department should add this to the test plans, and Engineering/Support should prioritize a public response/fix!
Maybe, open a support ticket and offer to send debug logs.
Norton support via Social Support | Chat | Phone [here ]
All: What if anything is Norton showing in firewall/history regarding blocking Miracast? Knowing that would be helpful.
SA
As a teacher, I use Miracast extensively in the classroom, casting from my 2-in-1 laptop (Windows 11) to a Microsoft Wireless Display Adapter that’s connected to an Epson projector. Yesterday, Miracast stopped working. At first I thought it might be the adapter, but as OP mentioned, disabling Norton allowed Miracast to work normally. I changed the Firewall setting from “Smart Firewall” to “Ask” thinking that it would ask me to approve the Miracast request, but the firewall didn’t raise a notification and continued to block it. After some further research online, I found it may due to Norton having stricter rules for “Public” vs. “Private” networks. I also saw it mentioned that the profiles Norton defines for “Public” and “Private” networks override individual firewall rules in the interest of security (which is why allowing full net access to “C:\Windows\System32\WUDFHost.exe" which is what Miracast uses may not be working). I’m going to open a support ticket with Norton and I encourage anyone else with this issue to do the same to raise it’s priority.
I checked the firewall history and Norton isn’t showing anything regarding Miracast.
Nothing in the logs - that is the first thing I checked.
Please do and share your findings. It’s infuriating.
Nearly a month later and the problem persists. Quite frankly I became busy with other things and have resigned to it just not working - until I purchase a different AV/Firewall product when my current subscription expires…(Miracast stopped working not long after renewing the product for $130 for another year - also irritating) Miracast aside, I haven’t enjoyed the experience of the “new” Norton so far. The inability to change firewall rules with relative ease sucks. Not a fan of the re-do.
True- If I turn off Norton Auto-Protect and Firewall, I can wirelessly display from my Windows 11 devices. I’ve tried going into Settings, App Permissions and “Allowing” the following:
Miracast Input Manager; Miracast Receiver API, Miracast Receiver Extension; Wireless Display; and Wireless Adapter. Even after allowing all of these, I’m still blocked from projecting my Windows 11 devices (Thinkpad; Surface Pro) to my Samsung TV. Weirdly, a Windows 10 Thinkpad can connect to the TV. Any troubleshooting advice will be helpful. I will also open a Norton ticket.
Not sure if this helps since I solved this problem on my Macbook, not Windows PC, but I just installed Norton on my Macbook yesterday and it started stopping me from sharing my Mac’s screen to my TV. After a while I found out I have to disable the Content Filter in my Mac system settings.
System Settings → Networks → Filters and Proxies. Disable the Content Filter of Norton.
Maybe try to do something similar on Windows?
I think I found the solution. Add a firewall port unblock for TCP port 7236 IN (“Out” shouldn’t be needed). Let us know if this works.
All, I had the same issue at work. Norton must have pushed an update and Casting to my Samsung 65’’ NEO stopped working on my Windows 11 PC. This is what I did to get it to work again:
Hi,
Thank you for sharing your troubles. I had this problem for over a month. I just wanted to share directly my screen with the windows second screen display with a tablet (S7+ Samsung). I know you all use miracast for that purpose but i wanted to share with you a little discovery i made with the advanced settings :
In security–> advanced–>network–> Auto-Protect and Firewall–> complementary settings–> exceptions for public network (sorry if this is not the correct words for each steps, my norton is in french (french canadien)
You can find there traffic IGMP. After many research i found out that is link to the port of display/second screen (by putting that traffic rule in the report made by norton (you can change that too in the settings))
By turning it on for public AND private, rebooting the laptop, it seems to have fix the problem. Hope it will do the same for you.
Marco
Yes, exactly.
1.“Allow IGMP traffic” to green for Public networks AND Private networks
2. Reboot laptop
3. Try connecting your wireless display.
Marco
I have the same problem. But when I go to the screen posted above by @bgm, the settings are all locked. I can’t change the IGMP slider from red to green, or anything else. Clicking does nothing. How do I change the settings?
