Will wifi still work the same if router is on floor?

[Bastila Shan]

Is there a noticable difference between table top and floor router placement?

[_I_]

less about location and more about distance and whats inbetween them

[Bastila Shan]

Does wifi go through the walls like radiation? And what kind of wall or object could block it?

[Cathulhu]

Yes, Wifi goes through walls, but the signal will be weaker. How much depends on the wall, material and thickness.
Generally, you want the router/access point as high as possible for better coverage.
Pretty much every object is an interference. The more metal it contains and electomagnetic fields it emits the more it interferes with the wifi signal.

[RGX12]

As Cathulhu already noted, "the higher, the better" is a good rule of thumb when it comes to access point placement. However, distance is still the key metric when it comes to performance (and by extension, the number and type of intervening obstructions). You didn't include any information regarding this in your post, but roughly speaking, if your wireless clients are in the same room as the AP it'll make little difference if it's on the floor; however as you go further away, the low placement will likely work against you. You can always experiment by placing the AP in different positions and measuring signal strength on your various clients to see what's best.

[Bastila Shan]

Yeh im mostly in the same room as the router or just in the next room 3 - 4m away.

[RGX12]

I'd still try to elevate the router if possible, but if floor placement is the best you can do then you should at least get a decent signal at those distances.

[vadim]

Hoboslayer の投稿を引用：

Is there a noticable difference between table top and floor router placement?

Depends on different conditions, but in general, yes. If signal goes through furniture, difference could be noticable.

[🦊Λℚ𝓤ΛƑΛᗯҜᔕ🦊]

Cathulhu の投稿を引用：

Yes, Wifi goes through walls, but the signal will be weaker. How much depends on the wall, material and thickness.
Generally, you want the router/access point as high as possible for better coverage.
Pretty much every object is an interference. The more metal it contains and electomagnetic fields it emits the more it interferes with the wifi signal.

You forgot to add in the wireless frequency as well. 2.4 Ghz wifi penetrates all walls (and multiple walls) much better than 5 Ghz WiFi does. 5 Ghz WiFi is mostly for same-room with clear line of sight to the router.

[Bastila Shan]

Impending Rentacle Tape の投稿を引用：

Cathulhu の投稿を引用：

Yes, Wifi goes through walls, but the signal will be weaker. How much depends on the wall, material and thickness.
Generally, you want the router/access point as high as possible for better coverage.
Pretty much every object is an interference. The more metal it contains and electomagnetic fields it emits the more it interferes with the wifi signal.

You forgot to add in the wireless frequency as well. 2.4 Ghz wifi penetrates all walls (and multiple walls) much better than 5 Ghz WiFi does. 5 Ghz WiFi is mostly for same-room with clear line of sight to the router.

Does 2.4ghz work sufficiently with 45Mbps? Or will i need to use 5ghz to get full use of the 45Mbps?

[🦊Λℚ𝓤ΛƑΛᗯҜᔕ🦊]

Hoboslayer の投稿を引用：

Impending Rentacle Tape の投稿を引用：

You forgot to add in the wireless frequency as well. 2.4 Ghz wifi penetrates all walls (and multiple walls) much better than 5 Ghz WiFi does. 5 Ghz WiFi is mostly for same-room with clear line of sight to the router.

Does 2.4ghz work sufficiently with 45Mbps? Or will i need to use 5ghz to get full use of the 45Mbps?

Both 2.4 Ghz and 5 Ghz support up to 300 Mbps WiFi Signal, and some routers can even go up to 600 Mbps on 2.4 ghz with multiple antennas (3 or more). In general you're going to have a hard time getting 45 Mbps internet speed consistently over WiFi anyway. I have 200 Mbps internet here and I can barely get 30-40 Mbps internet speed over wifi either 5 Ghz or 2.4 Ghz, even inches from the router. And even if you do get the speed, remember that WiFi it's self adds +10 to +20 ms latency to your internet connection, just due to the technology it's self.

[Cathulhu]

2.4GHz can easily saturate a 54MBit connection. Depending on the access point and available antennas, it can go up to 400MBit, but that's more for high end enterprise models. Which ain't cheap.
With integrated access points in routers you get more about 100-200MBit on the 2.4GHz frequency band. More than enough in general.

[🦊Λℚ𝓤ΛƑΛᗯҜᔕ🦊]

Cathulhu の投稿を引用：

2.4GHz can easily saturate a 54MBit connection. Depending on the access point and available antennas, it can go up to 400MBit, but that's more for high end enterprise models. Which ain't cheap.
With integrated access points in routers you get more about 100-200MBit on the 2.4GHz frequency band. More than enough in general.

Yeah.. about that: https://www.ebay.com/sch/i.html?_from=R40&_nkw=D-Link+DIR-665&_sacat=0&LH_BIN=1&_sop=15&rt=nc&LH_ItemCondition=4

This router will do 450 Mbps WiFi-N @ 2.4 ghz, and has all gigabit network ports for full speed and costs < $50

Seems kinda cheap and not-enterprise to me.

[Cathulhu]

The D-Link DIR-665 router only goes up to 300MBit.
ftp:/ftp2.dlink.com/PRODUCTS/DIR-665/REVA/DIR-665_MANUAL_1.00_EN.PDF
Here, have a manual from D-Link. Take a look at page 90 for the technical specs. Not that i'd buy their crap. Not only is it outdated, it originates from back when 802.11n wasn't even certified, only drafted, D-Link is notoriously known for their low quality products.

Want to see an enterprise model access point?
https://www.fortinet.com/content/dam/fortinet/assets/data-sheets/FortiAP_11ac_Series.pdf
Fortinet FortiAP 421E/423E
Manages up to 800MBit on 2.4GHz.
1 733MBit on 5GHz.
Costs about 900€ list price though.

[🦊Λℚ𝓤ΛƑΛᗯҜᔕ🦊]

Cathulhu の投稿を引用：

The D-Link DIR-665 router only goes up to 300MBit.
ftp:/ftp2.dlink.com/PRODUCTS/DIR-665/REVA/DIR-665_MANUAL_1.00_EN.PDF
Here, have a manual from D-Link. Take a look at page 90 for the technical specs. Not that i'd buy their crap. Not only is it outdated, it originates from back when 802.11n wasn't even certified, only drafted, D-Link is notoriously known for their low quality products.

Want to see an enterprise model access point?
https://www.fortinet.com/content/dam/fortinet/assets/data-sheets/FortiAP_11ac_Series.pdf
Fortinet FortiAP 421E/423E
Manages up to 800MBit on 2.4GHz.
1 733MBit on 5GHz.
Costs about 900€ list price though.

https://www.newegg.com/Product/Product.aspx?Item=N82E16833127328 - "Up to 450Mbps Wireless Data Rates"

http://content.us.dlink.com/wp-content/uploads/2014/03/DIR-665_DATASHEET_1.00_EN.pdf

I've been thinking of buying one of these used myself, 450 Mbps over 2.4 Ghz N is attractive @ cheap price.

I did read page 90. What they're referring to is the "Official Specification for 802.11N" is 300 Mbps. Quite a lot of wireless devices will exceed that. Some will go up to 600 Mbps over 2.4 Ghz 802.11N even. This one only does 450.

Also right there on page 90 in that manual you linked:

Wireless Signal Rates*
IEEE 802.11N (HT20/40):
• 216.7Mbps (450) • 195.0Mbps (405)
•175.5Mbps (364.5) • 173.3Mbps (360)
•156.0Mbps (324) • 144.4Mbps (300)
• 130Mbps (270) • 117Mbps (243)
• 104Mbps (216 • 78Mbps (162)
• 66Mbps (135 • 58.5Mbps (121.5)
• 52Mbps (108) • 39Mbps (81)
• 26Mbps (54) • 19.5Mbps (40.5)
• 12Mbps (27 • 6.5Mbps (13.5)

[meheezen]

^just passing through...
do note that those 450mbps speeds are only attainable in perfect conditions and using an 40MHz channel on the 2.4GHz range, which is not exactly ideal if there are other access points in range.
i'm not sure how this enterprise/not enterprise adds to the OP's question tho.