Does connecting to 2 networks at same time increase wifi speed?

Help
1

I have an internal WiFi card which occasionally breaks and an external USB one with an antenna

the latter can reach speeds of 200Mbps on some days while barely survives on 20 on other days

randomly one day, i was fixing my wifi and realised i had both working at the same time,

so does connecting to both help in speeds or affect them in any way?

i cant check since the latter of the mentioned WiFi drivers is really unpredictable to know if it really made a difference

2

Forgot to add:

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3

@Ibadullah:

Looking at your WLAN Wi-Fi descriptions, one could come to the conclusion that –

  1. Some of the IEEE 802.11 Wireless LANs are being routed from a 4G cellular network.
  2. Other IEEE 802.11 Wireless LANs are being routed from a 5G cellular network.

Another issue is, that you haven’t mentioned if, the Wi-Fi WLANs are using the 2.5 GHz frequency band or, the 5 GHz frequency band.

And, you haven’t mentioned if, the Wi-Fi WLANs are capable of Wi-Fi 5 or, Wi-Fi 6 or, Wi-Fi 7 standards.

For example, my Apple macBook Air is currently connected to a 5 GHz Wi-Fi 6 WLAN with the following data rates:

  • Actual: 1225 Mbit/s receive and 864 Mbits/s transmit.
  • Maximum possible: 2402 Mbits/s receive and transmit.

Assuming that, your WLAN is connected to the world either by means of a 4G cellular network or, a 5G cellular network, fundamentally your WLAN will be restricted by the data rates which could be achieved, under ideal conditions, by the cellular networks:

  • If 4G and LTE advanced then, the peak data rates for a cellular device are:
    1000 Mbit/s download;
    500 MBit/s upload.

  • If the 4G network is using older LTE standards then, the peak data rates are typically 150 Mbit/s download and 50 Mbit/s upload.

  • If 5G then, your cellular device could achieve 1000 Mbits/s download given a sub-6 GHz (mid-band) 5G network – lower band network frequencies typically deliver at most 250 Mbit/s download.

Bottom line, connecting multiple WLAN interfaces to a Linux machine may, possibly increase the achievable data transfer rates but, even though Linux and the Network Manager do support his configuration, for any given data transfer, either one or, the other, interface will be chosen – therefore no real advantage.

And, Wireless data throughput depends on –

  • Interference;
  • The number of devices using the frequency;
  • The frequency;
  • The bandwidth associated with the frequency;
  • The Standard being used.
4

okay thanks, if there’s no downsides then i don’t see any problem. thanks for the thorough explanation