Upgrade network card

I have an T430U with the Intel 2230N wifi card. is there a possibility to upgrade to a different more stabile network card. I tried to install a different card from another Lenovo laptop, but i just prompted that the card was unrecognized.

In your place, I would first try to change the advanced power plan settings, set the wifi card to maximum performance, both when on battery and plugged in. I would also go to device manager, find the Intel 2230 N under Network adapters and double click on it to bring up the properties window. In the Advanced tab there must be a setting for transmission power. Set that to 100% if it is not already there.
If nothing changes, install drivers directly from Intel or older versions from the Lenovo Support.
As a last resort, I would buy another adapter. I found this adapter with the realtek chipset at ebay with a Lenovo FRU. It's really cheap, it must be in the whitelist of your machine.
Try the first step and report back, there may be an easy solution to your problem.
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