Hongdian H8951 3G/4G Wi-Fi router - Manual (Page 134)

5 Router config H8951 3G/4G Router
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Possible Reason
 SIM card network type do not match
 SIM charges owed
 Power supply do not match
 Modem setting wrong
Solution
 Change to a suitable SIM card
 Recharge SIM card
 Change to suitable power supply
 Change Modem setting, please check related chapter
7.2.2 No Signal
Phenomenon
H8951 3G/4G Router modem status show no signal
Possible Reason
 Antenna connect wrong
 Modem cannot online
 Modem offline
Solution
 Connect suitable antenna
 Modem cannot online, check SIM and modem setting
 Modem offline, check router setting, like wake up setting, ICMP setting, check if there are
any setting make router offline
7.2.3 Cannot find SIM/UIM card
Phenomenon
H8951 3G/4G Router cannot find SIM/UIM card
Possible Reason
 SIM card damage
 SIM bad contact
Solution
 Replace SIM card
 Re-install SIM card
7.2.4 Poor Signal
Phenomenon
H8951 3G/4G Router no signal or poor signal