T
Tim M Watts
Hi all,
Apologies at the start if this is a little long!
So we've been having this problem with Miracast for the past few weeks and after much testing, trying, searching and headbanging I have got pretty much nowhere.
We use Miracast to display daily live stats on TV's throughout our offices and at multiple locations. A wide range of hardware is being used and all was working fine until about 3 months ago.
Since that time we are seeing either issues with failure to connect from the Laptops to the TV's or the connection will drop to the TV after a period of between 5 and 15 minutes. It is hit and miss as to whether or not you can reconnect again without having to either restart the TV or the Laptop to re-establish connectivity. This is now consistent across all hardware in place.
We are using, for the most part LG Televisions with Miracast support, but there are also a number of Samsung units as well. These range in age from 2 years to 2 months and it doesn't matter which we use, the problem is consistent.
PC Hardware has been a combination of Lenovo, Dell and HP Laptops as well as Surface Pro units, again aging from 2 years to 2 months - doesn't make any difference, the problem is still there.
It is also consistent across different builds of Windows 10, be it 1903, 1909 or 2004.
Laptops have had all Windows Updates applied as well as firmware updates and the TV's have also had updates applied where supported but this has made no difference.
As a quick bit of background, all was fine until around 3 months ago as mentioned above. This would make me suspect that Windows Update is our culprit here. To add to this, I pulled an old Surface Pro out that had not been used for at least 6 months a couple of weeks ago and this connected and worked fine - didn't drop at all. Windows auto-updated a few days later and since that point, we either can't connect or we get drops after 5-15 minutes. I rolled back the updates that had been applied and this seemed to help for a while, but then the issue came back a couple of days later - and no updates had been applied since that time.
In some cases, the TV is only 5 feet from the Laptop, others it is 15 to 20 but again this makes no difference. It is affecting all laptops now which used to work perfectly for hours on end. Even laptops that we don't use for this purpose but have the Miracast functionality have experienced the same problem with drops during extended testing.
There's quite a bit on-line about this, and what has been tried so far is:-
- Verified all is Ok in dxdiag. All fine.
- Make sure all hardware is on latest drivers / firmware. Done - made no difference.
- Run latest Windows Updates. Done - made no difference.
- Changes to Windows Firewall Rules. Done - made no difference.
- Registry changes. Done - made no difference.
- Checking System - Shared Experience is turned on. Done - made no difference.
- Changed Network Interface Metric. Done - made no difference.
- Changed WAP's to not change channels. Done - made no difference.
I can't believe that we are the only organisation affected by this and it is clearly a Windows update issue that has triggered it.
Is there anyone out there that has also been through / is going through this pain that can shed any light and pointers as to where I can go next to get our Miracast working properly once again?
Thanks in advance for any guidance.
Regards
Tim
Continue reading...
Apologies at the start if this is a little long!
So we've been having this problem with Miracast for the past few weeks and after much testing, trying, searching and headbanging I have got pretty much nowhere.
We use Miracast to display daily live stats on TV's throughout our offices and at multiple locations. A wide range of hardware is being used and all was working fine until about 3 months ago.
Since that time we are seeing either issues with failure to connect from the Laptops to the TV's or the connection will drop to the TV after a period of between 5 and 15 minutes. It is hit and miss as to whether or not you can reconnect again without having to either restart the TV or the Laptop to re-establish connectivity. This is now consistent across all hardware in place.
We are using, for the most part LG Televisions with Miracast support, but there are also a number of Samsung units as well. These range in age from 2 years to 2 months and it doesn't matter which we use, the problem is consistent.
PC Hardware has been a combination of Lenovo, Dell and HP Laptops as well as Surface Pro units, again aging from 2 years to 2 months - doesn't make any difference, the problem is still there.
It is also consistent across different builds of Windows 10, be it 1903, 1909 or 2004.
Laptops have had all Windows Updates applied as well as firmware updates and the TV's have also had updates applied where supported but this has made no difference.
As a quick bit of background, all was fine until around 3 months ago as mentioned above. This would make me suspect that Windows Update is our culprit here. To add to this, I pulled an old Surface Pro out that had not been used for at least 6 months a couple of weeks ago and this connected and worked fine - didn't drop at all. Windows auto-updated a few days later and since that point, we either can't connect or we get drops after 5-15 minutes. I rolled back the updates that had been applied and this seemed to help for a while, but then the issue came back a couple of days later - and no updates had been applied since that time.
In some cases, the TV is only 5 feet from the Laptop, others it is 15 to 20 but again this makes no difference. It is affecting all laptops now which used to work perfectly for hours on end. Even laptops that we don't use for this purpose but have the Miracast functionality have experienced the same problem with drops during extended testing.
There's quite a bit on-line about this, and what has been tried so far is:-
- Verified all is Ok in dxdiag. All fine.
- Make sure all hardware is on latest drivers / firmware. Done - made no difference.
- Run latest Windows Updates. Done - made no difference.
- Changes to Windows Firewall Rules. Done - made no difference.
- Registry changes. Done - made no difference.
- Checking System - Shared Experience is turned on. Done - made no difference.
- Changed Network Interface Metric. Done - made no difference.
- Changed WAP's to not change channels. Done - made no difference.
I can't believe that we are the only organisation affected by this and it is clearly a Windows update issue that has triggered it.
Is there anyone out there that has also been through / is going through this pain that can shed any light and pointers as to where I can go next to get our Miracast working properly once again?
Thanks in advance for any guidance.
Regards
Tim
Continue reading...