A shot in the dark... If your PC is using bluetooth, it may be interfering with the WIFI signal. Also try your PC in a different location to see if it is something else interfering with the signal.

Speed depends on a lot. Starts with your ISP providing a good strong signal. Next is the wiring in your house. then the modem, wiring from the modem to the router, the router, wiring from the router...

Power cycle your modem, PC and router is always a good start. Connect the PC direct to the modem bypassing the router to ensure the issue is in the router before replacing it. The issue may be your...

Do you have the issue if you connect via WIFI? I would connect the laptop directly to the modem bypassing the router to insure the issue is in the router/PC connection. Check the PC for malware. Next...

if the default userid and password does not work, then it is time to reset the router to factory specs. See your router manual or google for your specific model for instructions. After the reset, you...

Just set up everything in no-ip website and forget the router DDNS settings as the only time it makes a difference is when your IP address changes. In most cases, it is rare when it changes. I am...