Hello Arundhati,
Your computer may not be receiving a strong wireless signal for a few reasons.
- You may have your computer in a location that cannot receive a strong wireless connection. If this is the case, moving your laptop closer to your router should help.
- Another issue could be the antenna of your laptop. Make sure your antenna is fully connected by pushing it in.
- If neither of the before options help, then you may need to replace your computer's antenna. Refer to the antenna replacement guide [guide|73159|here] for instructions on how to replace your computer's antenna.