Wifi keep disconnecting

Dear Moderators,

I have a problem that have been happening for a very long time, I’ve been searching for solution on youtube and social media for a long time, and this is my first time writing a helping letter. So my problem is my wifi keep disconnecting although the wifi icon is still recognized as connected and the wifi is still connected, I’m using the laptop for gaming and it’s pretty annoying, the problem happen very frequently. Im using a Dell Latitude E7440 and its a pretty old computer. Please help.

Sincerely, Jamal