Hongdian H8951 3G/4G Wi-Fi router - Manual (Page 135)

H8951 3G/4G Router 5 Router config
(2014-07-01) - 119 -
Possible Reason
 Antenna connect wrong
 Area signal weak
Solution
 Check the antenna and re-connect it.
 Contact Telecom Operator to confirm signal problem
 Change to high-gain antenna
7.2.5 Compress Protocol not match
Phenomenon
H8951 3G/4G Router dial failure, log shows compress protocol not match
Possible Reason
Modem compress protocol do not match with server end
Solution
Change compress protocol setting
7.3 VPN Problem
7.3.1 VPDN cannot connect
Phenomenon
VPDN cannot connect
Possible Reason
 VPDN port work abnormal
 VPDN parameter wrong
 VPDN peer server abnormal
Solution
 Make sure Modem is online
 Set the correct port to VPDN
 VPDN parameter wrong
 Check VPDN peer server
7.3.2 VPN cannot communicate
Phenomenon
VPN already connect, but cannot communicate