User Manual

29
Chapter 13: FAQ
Network
Why can’t I access the Internet?
• Make sure your wireless device is not banned under Trafc Control.
• Make sure your device's Internet access is not scheduled to be unavailable under Parental Control.
• Go to
Network Center
>
Status
>
Internet Connection
, and check if the status is "Connected".
Why can’t I connect to certain sites or send/receive emails when connecting
through my router?
If your device has been added to
Parental Control
, check its level of protection and if the websites in question
have been added to the
Custom
web-lter.
Why is the upload/download trafc slow?
• Check if your device's custom speed settings have been modied. Go to
Network Center
>
Trafc Control
>
General
and click the
Custom speed
icon to modify the settings.
• If you have created a large number of rewall or port forwarding rules, your network transmission performance
may become slower. To remove rewall rules, go to
Network Center
>
Security
>
Firewall
. To remove port
forwarding rules, go to
Network Center
>
Port Forwarding
>
Port Forwarding
.
• If
Trafc Control
is enabled on RT1900ac, network speed promotion will be disabled and general transmission
speed may be lower. To disable Trafc Control, go to
Network Center
>
Trafc Control
>
Advanced
>
Settings
for management.
What can I do if port-forwarding doesn't work properly?
• Go to
Network Center
>
Port Forwarding
>
DMZ
, enable DMZ, and specify the DMZ host IP address. Then,
see if the devices in the DMZ can be accessed from the Internet. As a specialized form of port forwarding, DMZ
helps you nd out whether the problem lies in port forwarding itself.
• If rewall is enabled on the router, suspend the rewall function for a while.
• Contact the ISP to know if the service port is blocked.
Why can't I nd my router via router.synology.com?
• You can only access your router via router.synology.com when the connecting device is in the router's local
network.
• Make sure the connecting device (e.g. your PC) and the router are well-connected to each other via network
cables or Wi-Fi connection.
• Simplify the network conguration by connecting your router and the PC directly, without hubs/switches in
between, and try again.
Why do I have abnormal incoming/outgoing trafc?
• Go to
Network Center
>
Trafc Control
>
Monitor
, and select
Enable trafc statistics
and
Enable
application detection
to check which device/application overuses network bandwidth. Locate the device/
application in question and disconnect/stop it.
• Go to
Security Advisor
and perform system scan to see if there may be potential security issues.
Does the router have SPI rewall?
Yes. SPI rewall is always enabled. No related management options are provided.