The walls are six inches thick. Just measured it. Between 6 and 9 inches only for sure.
If your house was constructed within the last ten years it will be 6 inches. Why does this matter ?
3 x 6 inch walls is less than 2 x 11 inch walls but 3 x 9 inch walls will be harder for 2.4Ghz
2 x 6 inch walls = 1 x 11 inch for 5Ghz
You can get a signal beyond but how consistently it works depends on what you need to do.
"Yoda" is the network I am connected to. The neighbouring networks are above -80 so I guess it should not be a problem right?
Did not see all the networks in that grab but if there aren't any in the 50-60db range you should be ok as far as interference from neighbours is concerned.
Mostly basic browsing, YT and movie streaming only. But would love to experiment with steaming form my External hard disk via the WLAN etc. But not sure if I am expecting too much again. The maximum number of clients at a point in my house would be 4-5 devices (1 laptop, 1 tablet, 3 mobile phones. Nothing else as of now).
Which client you use at the end of 3 walls matters. The laptop is the most capable of all the other clients. It will be able to handle more than one stream compared to the mobile clients which are all single stream. This is important to realise because it does not matter how many streams your router can put out, these mobile clients will only catch one stream. They will see a better signal and that's it.
If you want to stream movies then movie bitrate becomes a factor. SD should work fine, HD will just about work and anything above HD will be problematic.
You could try streaming now with your existing setup and DLNA to see how well it works.
external HDD--->pc/laptop (with dlna
server)---ethernet(important this is wired only)---->wifi-router ))))) wifi clients with DLNA (bubble Upnp from playstore) installed
DLNA is better than windows file sharing as its protocol (HTTP) has less overhead compared to SMB.
I have a modem-router. Basic Beetel 450BX1 that came along with BSNL broadband. I get decent signal around the house. In the room that is 3 walls away(bedroom), this is the signal strength I get:
Is this good enough ? (I took this reading using Wi-Fi analyzer app on a Moto G). And performance-wise, I didnt have any issues. Found it quite decent actually. But not sure if I utilized my BSNL connection optimally (4 Mbps plan)
-80dbm is a borderline signal level, usually 60-70dbm is the sweetspot where you can expect consistent performance from most clients. wifi isn't the bottleneck here, at closer ranges it should be able to handle at least 15Mbs.
If its acceptable as you say, then why not try pushing it some more and streaming something heavier than YT to see how it copes.
You should walk around the house and check what the levels are like, is -80 is the lowest you see ?
Why don't you conduct a similar test with your laptop using inssider. current version is pay now for pc, but the previous version was free. Found it
here. Will be interesting to see what signal level the laptop registers at 3 walls away and compare with moto g.