Let us check your Macbook WiFi settings and possible source of problems.

We established that you have good WiFi signal and low Noise.

If those remain constant (more or less) then the problem could be in:

Open Network in your System preferences and Click on Advanced:

First check if your WiFi (name) is at the top of the list of WiFi (names). Here I do not know why you are using the IP address and not the SSID name of your router.

Click on the DNS tab. Make note of the current number. (it should be something like 192.168.1.1) Now click on the plus (+) sign and add Google DNS server 8.8.8.8 and second one with 8.8.4.4. DNS is used to direct your connection to the right site you wanted to go, but it could go the long way (slow) or the short way (fast). Move those two numbers to the top of the list (above your number).

The 802.1X tab should be empty.

The Proxies tab should have nothing checked.

The Hardware tab should be a Automatic and showing 1500 MTU.

Now we can do a test by changing the Hardware Tab to Manual and setting the MTU to 1453. The MTU is the packet size for the WiFi.

Let us check your Macbook WiFi settings and possible source of problems.

We established that you have good WiFi signal and low Noise.

If those remain constant (more or less) then the problem could be in:

Open Network in your System preferences and Click on Advanced:

First check if your WiFi (name) is at the top of the list of WiFi (names). Here I do not know why you are using the IP address and not the SSID name of your router.

Click on the DNS tab. Make note of the current number. (it should be something like 192.168.1.1) Now click on the plus (+) sign and add Google DNS server 8.8.8.8 and second one with 8.8.4.4. DNS is used to direct your connection to the right site you wanted to go, but it could go the long way (slow) or the short way (fast). Move those two numbers to the top of the list (above your number).

The 802.1X tab should be empty.

The Proxies tab should have nothing checked.

The Hardware tab should be set to Automatic and showing 1500 MTU.

Now we can do a test by changing the Hardware Tab to Manual and setting the MTU to 1453. The MTU is the packet size for the WiFi.