Constant errors with the wifi adapter

Hi guys, recently i got the keyboard on my laptop replaced and since then I have been expiriencing bad issues with my wifi. The first thing is that it disconnects from my wifi network randomly and then it can't find the network and I must go and restart the router. The second thing is that sometimes when i try to open a new page in my browser it doesn't load and I get the No internet access message. Other problem is that when I try to do some online gaming, I play around 10 minutes with 2-30ping and then it goes to 200 ping and I must reconnect to my network or restart the game. Most of the issues I fix by going in control panel and then in the Network connections tab I click on my wireless connection and then diagnose this connection. Im sick of having to deal with problems, so could you guys recommend me a fix?
Note: The wifi works perfectly fine with the other devices in my house!
*Sorry for my bad English.

What model laptop, sounds like when they replaced the keyboard they accidentally unplugged your wifi antenna from the wifi chip in the laptop.

Malcolm