Slow transfer speeds
Slow transfer speeds can be caused if the router or infrastructure is overloaded. Check the speed and duplex of your local interface. You might be impromperly configured. For example, you’re running at 100 megabits instead of gigabits or you’re set at half duplex instead of full duplex. Check for any hardware issues with the network adapter or cabling. Malware can also be the cause of slowness.
- Command prompt to show all connections between your computer and any other computer: netstat
- Shut down any unnecessary running programs
- Check the router
- Get more bandwidth
- Use Qos to prioritize access to network resources
Low RF signal
Interference from third party devices may cause low wireless RF signals. Another device may be using the same frequency. Things like Fluorescent lights, microwave ovens, cordless telephones, and other high power sources, like transformers and generators, are known to cause wireless interference.
Check the signal strength from your access point. Check the transmitting signal, transmitting antenna, receceiving antenna, etc.
Make sure you’re on the same channel as your access point. Usually this is set automatically. But if you’re setting the channels manually make sure the channel matches the access point.
Check the location of the access point to see if you need to relocate it closer to the user to improve performance.
Check the performance monitor in windows or a third party tool to map the signal strength over a period of time.
SSID not found
If your wireless network name does not appear in your list of available wireless networks, it might be that your access point is too far away. Another reason for your SSID not being found is that the wireless router was configured to disable SSID advertisements. And thus the SSID wil never appear in the available network list. The wireless is still available, but you’ll need to manually type in the SSID in order for your system to connect to it.