Only the shortened gate would give different indication. It can happen, but I have challenged you, as it is not a way to test this circuit. Not with...
#1 and #3 are in result of #2 - failing PPP negotiation. Why it is not working with some devices I don't know. The easy way to solve this problem is...
If you don't have Vodafone software installed, there is a possibility that drivers are not installed. Do you see modem device and User Interface port...
Cheap PSU's usually sacrifice MOVS (a key elements for surge protection) and input filters (which also contribute to surge protection). They usually...