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3G/4G Router All-in-One Troubleshooting

Guide

For better compatibility, TP-Link keeps testing all the mainstream modems all over the world, and

continuously updating the firmware and compatibility list as soon as a new modem get compatible.

However, some customers still encounter compatible problem, this document will guide you to do

the troubleshooting and resolve it.

Summary of content (8 pages)

PAGE 1
3G/4G Router All-in-One Troubleshooting Guide For better compatibility, TP-Link keeps testing all the mainstream modems all over the world, and continuously updating the firmware and compatibility list as soon as a new modem get compatible. However, some customers still encounter compatible problem, this document will guide you to do the troubleshooting and resolve it.
PAGE 2
Situation 1: 3G/4G modem/Region/ISP is not listed in the compatibility list of our router. We recommend our users to check the 3G/3.75G USB Modem Compatibility List before purchasing our 3G router. This list contains the tested modems with corresponded information such as region/ISP. If your country is not in the list, please take “Other Location” option for reference only.
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Finally, please go to System Tools-> Reboot and reboot your 3G router,. If the modem still cannot be identified by the 3G router, please plug your modem to the router then restart the router and wait for about 5-10min, next go to System Tools-> System Log to save the log of the router andthen send the log with some other related information such as the 3G modem model, your country name and ISP to TP-Link support ..
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Situation 3: 3G/4G modem is identified, but there is no internet access through the TP-Link router. Before sharing the broadband with our 3G router, please make sure you do have Internet access with the 3G modem on PC/Laptop directly. Now we assume that your 3G modem can be identified successfully by the 3G router, as you can see the following picture. Here we take Huawei EC169 as an example. If you cannot have Internet via the 3G router, it may be caused by following issues.
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(3) Mismatched parameters When we try to connect to a 3G network, some parameters such as Dial number, APN, username andpassword are required. It is very important for us to know the correct information. If you see the following red-circled words in the System Tools-> System Log page, that means you need to ask your ISP (who provide you the 3G service) to confirm the above parameters.
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(4) Signal strength If the 3G signal is weak or unstable in your location, there will be a probability to suffer this problem, so it is recommended to compare the performance in a different place. If you still suffer this problem after following the troubleshooting procedures above, please save the system log (click here to check how to save it) and feel free to contact with TP-Link support). Situation 4: Internet is not stable,drops frequently though the TP-Link router.
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