Windows Miracast issues

Hi, I've got the laptop (Acer G9 - 593), my WIFI Adapter is Killer Wireless-n/a/ac 1535 Wireless Network Adapter. When I'm connecting to my TV its okay only for picture show and some text work. For videos, i'm getting lags from time to time, though my wifi router is good.

Also if I look closely on a static image, its always blurring like constantly refreshing-and-then-compressing. Looks weird like some alien life form moving

 

@vorob are you connected on 5GHz 802.11ac, or at least 5GHz 802.11n?

 

Its definitely "n", but "ac" is not supported by my router.

 

This is normal for 'n' and even 'ac' (re; 'lags'). Upgrade your equipment to 802.11ad, when you can, to have lag free video...

For now; disable 40MHz width in your router and limit your channel choices (test each one) to 1, 6 and 11.

 

@tilleroftheearth as 802.11ad user, I dare say it ain't perfect either - but definitely the best thing we got for now.

 

Still on n mode because internet speeds are 10 MB/s and for that I don't need ac routers.

 

Don't base your internal network speeds/performance on what your ISP offers. AC class routers came into their own over three years ago - and offer even n class clients performance improvements...

Each router upgrade I've performed for myself or my clients has improved the usability of the network even with 1.5Mbps DSL connections to the outside world.

Depending on what router you have and your budget, an AC class router is a 'must buy' today if you want to further minimize any bottlenecks on your platforms. Even a $300 level AC router (Asus RT-AC3100 or better) is a 'good buy' when you consider you'll have it well into 2023 or so... and giving you superior performance from the day you buy it...

The range, stability and pure speed that (certain) AC class routers offer make the half+ decade old 'n' tech obsolete, 'now'. If, of course, you want the most performance mere $$$ can buy.

 

You're correct ac routers will improve the connectivity if there are more devices asking for more data every sec. say 10 or more devs, I'd say ac is the way to go. Currently my device count is <10, so n router will suffice for now, sooner or later I must upgrade to ac/ad.

 

The number of devices doesn't matter. Just having an AC class router does.

See:
https://www.smallnetbuilder.com/wir...oes-an-ac-router-improve-n-device-performance

And that is back in 2014...

Today's routers, like the one I mentioned, further push the WiFi performance, stability and reliability further...

And if ~300% and ~400% improvements doesn't hint to you that you're way behind the times (even with less than 10 clients)... I don't know what will.

You're correct that WiFi is a shared medium (time slices) and theoretically all n class devices should perform similarly on the same 'standard'.

What you may be ignoring in the above is that just like anything else; small improvements (antenna, RF design, materials, etc.) in the last decade or so get filtered down and implemented into devices we can actually afford (or at least, consider). Taken as a whole; those small improvements, added and multiplied and used together, become huge (300-400% huge...).

Just like a new platform (M/B, CPU+RAM) usually offers real (if not large) improvements over previous/earlier designs, a newer router can take your network from the 2000's and bring it up to 2017 standards and beyond (firmware...).

You don't need to believe me or the article I linked. Buy a few/couple of routers with full return policies (no restocking fees) and see for yourself in your environment. The few $$ saved is hardly worth the (anticipated) performance increase in your network over the next half decade or more.

Good luck.