I am using BSNL broad band connection since Nov 2010, initial speed was good at present speed is very bad. I had given the complaint regarding this, In fact I wanted to cancel the connection but the divisional engineer Mr. Shastri asked me to wait for 3 days...! his 3 days time is over but speed is not at all improved, even I am not able to connect to my office server from home. I raised this issue to my office team they said its an ISP issue as below. "The problem is that a port used by the VPN to connect is closed on your router or ISP network and the VPN cannot establish a successful connection with the HP servers
The following ports must be open on your ISP, router and firewall to create a successful VPN connection.
Work with your ISP (Internet service provider) to verify and ensure the ports below are open:
L2TP: TPC port 1701
IPSEC: UDP port 4500 (NAT -T)
UDP port 500 (isakmp) ~
IP Protocol 50 (Encap Security Payload)
IP protocol 51 (Authentication Header)
IP protocol 47 GRE (Generic Routing Encapsulation)
Note: The help desk cannot help open these ports. Please work directly with your Internet Service Provider or Router providers to verify and resolve networking issues".
I hope I will get a proper support from your end at the earliest.
My residence address is.
# 12, 1st cross, 5th block BSK 3rd stage.
Kamakya main road.
Contact no 8105424333.