1Gb/s from UPC - cable ok, WiFi only 250Mb/s, is this normal?

Question

Hello. This is my first post here. Just like in the subject. Giga Connect Box router. I've been online for 2 weeks. I tried hard reset, turn on only 2.4GHz (result ~80Mbps), only 5GHz (result ~250Mbps). Nothing helps. Interestingly, I had quite high speed twice: ~500-600Mbps. And this is...

m.jastrzebski · Accepted Answer

If the cable is OK and WiFi is failing, it is the fault of the WiFi and not the link.
Contrary to the beautiful advertisements and inscriptions on the box, how many gigabits of theoretical bandwidth does the router have, in practice it is impossible to achieve 1gbits on WiFi, and these 250mbits are rather decent. Read what determines WiFi speeds and how the theory relates to practice, then you will know that there is nothing to tear your robes about.

Anonymous · Accepted Answer

Speed over wifi depends on the amount of MIMO and QAM index supported by the router and clients, as well as on the distance and number of obstacles between the router and clients, and finally also on the amount of interference in the air - mainly foreign wifi networks.

According to the CB specification at 2.4GHz, you could get max 300...330Mbps in real life with crystal clear ether and near CB. AT 5GHz it would be about 600...650Mbps respectively.

In the sad reality, there is much, much less in blocks of flats and sometimes there is more and sometimes less.

Do wifi diagnostics --> https://www.elektroda.pl/rtvforum/topic3158772.html

Preferably InSSIDer, possibly WiFi Analyzer.

One measurement DIRECTLY at the CB, the rest where you usually use wifi.

And give me screenshots.

KOCUREK1970 · Accepted Answer

@zado1984 GCB and CB, has the so-called Smart Wifi - that is, the 2.4GHz and 5GHz network has the same name and encryption key - separate both networks, giving them a different encryption key and name. In addition, you have active WiFree (not to be confused with wifi), it's an additional wifi network for others and not for you (every UPC client in Europe can use this WiFree), you also have active IPv6 (this doesn't hurt in wifi transmission), but IPv6 is not currently popular on the Internet and there may be problems with online games, VOiP, etc. Separate wifi networks, turn off WiFree, turn off IPv6 - you will do the first one yourself, the second and third you have to contact UPC.

zado1984 · Answer

Well, I need a few professional opinions to know if this is the most appropriate or something wrong with this WiFi. I absolutely do not write with pretensions and I do not want to tear my clothes Thanks for the quick reply. PS I would like to add that tested on two laptops, including several years old Macbook, network cards by. specifications support 1Gb/s. And I was also confused by the single results above 500Mb/s, so it seems that I am able to achieve such speeds via WiFi. I'm not a network expert, but maybe I'll play with the router settings and gain some additional Mb / s

badboy84 · Answer

You won't win anything if the equipment doesn't work. Wi-Fi speed depends on the router and on the end device and possible obstacles along the way.

Network cards are 1Gb / s but maybe LAN cards, give the models of wireless cards.

zado1984 · Answer

I will be able to play on Saturday, I will let you know, because the router is in the apartment I rent. But I also asked a friend who understands networks better than me and he said that 250 Mb / s on WiFi is ok, you can't pick too much. As I said, ~ 940Mb / s flies over the cable, that's the most important thing.

m.jastrzebski · Answer

WiFi performance depends on many factors: - what the router can do (number of antennas, channel width) - what the client can do (number of antennas, supported channel widths) - from the occupancy of the frequency, the number of broadcasting neighbors, from the microwave oven turned on, etc - in the case of WiFi AC, i.e. the one with the highest speed, when transmitting on a frequency that is easy to attenuate, it depends on the distance to the router (forget about the max when the router is in another room), the physical arrangement of the antennas.

Anonymous · Answer

For the sake of accuracy, the highest speeds are in the ax standard (wifi 6).

zado1984 · Answer

The speed normalized after a few weeks and now I have even about 600 Mbps.

[Solved] 1Gb/s from UPC - cable ok, WiFi only 250Mb/s, is this normal?

Is it normal to get only about 250 Mb/s over Wi‑Fi from a UPC Giga Connect Box when the wired speed is around 940 Mb/s?

5 GHz Wi‑Fi limited to about 250 Mbps

5 GHz Wi‑Fi limited to about 250 Mbps

WiFi throughput is limited by router, not cable

WiFi throughput is limited by router, not cable

WiFi throughput limited well below 1 Gb/s

WiFi throughput limited well below 1 Gb/s

Post #4

Wi‑Fi throughput depends on MIMO, QAM, and interference

Wi‑Fi throughput depends on MIMO, QAM, and interference

Post #6

WiFi speed depends on router, client, and interference

WiFi speed depends on router, client, and interference

Post #8

Separate Smart Wifi, disable WiFree and IPv6

Separate Smart Wifi, disable WiFree and IPv6

Post #10

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