D-Link DSR-150 DSR-150 User Manual - Page 194

Date and time, 3 Pinging to Test LAN Connectivity

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Unified Services Router User Manual S ymptom: Ro u t er can o b tain an IP ad d ress, b ut PC is u n ab le t o lo ad In t ern et p ag es . Recommended acti on: 1. Ask your ISP for the addresses of its designated Domain Name System (DNS) servers. Configure your PC to recognize those addresses. For details, see your operating system documentation. 2. On your PC, configure the router to be its TCP/IP gateway. 11.2 Date and time S ymptom: Dat e s h o wn is Jan u ary 1, 1970. Pos s i bl e caus e: Th e ro u t er h as n o t y et s u cces s fu lly reach ed a n et wo rk t ime s erv er (NTS). Recommended acti on: 1. If you have just configured the router, wait at least 5 minutes, select Ad ministration > Time Zone , and recheck the date and time. 2. Verify your Internet access settings. S ymptom: Time is o ff b y o n e h o u r. Pos s i bl e caus e : Th e ro ut er d o es n ot au tomat ically ad ju s t fo r Day lig h t Sav in g s Time. Recommended acti on: 1. Select Ad ministration > Time Zone and view the current date and time settings. 2. Click to check or uncheck "Automatically adjust for Daylight Savings Time", then click Apply. 11.3 Pinging to Test LAN Connectivity M o s t TCP/ IP t ermin al d ev ices an d firewalls co n tain a p in g u t ilit y t h at s end s an ICM P echo -request packet to the designated device. The DSR res ponds with an echo reply. Tro u b les hoo tin g a TCP/ IP n et wo rk is mad e v ery eas y b y u s ing t he p in g u t ilit y in y o u r PC or works tation. 11.3.1 Testing the LAN path from your PC to your router 1. From the PC's Windows toolbar, select Start > Run. 2. Type ping where is the router's IP address. Example: ping 192.168.10.1. 3. Click OK. 192

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Unified Services Router
User Manual
192
Symptom:
Router can obtain an IP address, but PC is unable to load Internet pages.
Recommended action:
1.
Ask your ISP for the addresses of its designated Domain Name System (DNS) servers.
Configure your PC to recognize those addresses. For details, see your operating system
documentation.
2.
On your PC, configure the router to be its TCP/IP gateway.
11.2 Date and time
Symptom:
Date shown is January 1, 1970.
Possible cause:
The router has not yet successfully reached a network time server
(NTS).
Recommended action:
1.
If you have just configured the router, wait at least 5 minutes, select
Administration >
Time Zone
, and recheck the date and time.
2.
Verify your Internet access settings.
Symptom:
Time is off by one hour.
Possible cause:
The router does not automatically adjust for Daylight Savings Time.
Recommended action:
1.
Select
Administration > Time Zone
and view the current date and time settings.
2.
Click to check or uncheck
“
Automatically adjust for Daylight Savings Time
”
, then click
Apply.
11.3 Pinging to Test LAN Connectivity
Most TCP/IP terminal devices and firewalls contain a ping utility that sends an ICMP
echo-request packet to the designated device. The DSR responds with an echo reply.
Troubleshooting a TCP/IP network is made very easy by using the ping utility in your
PC or workstation.
11.3.1 Testing the LAN path from your PC to your
router
1.
From the PC’s Windo
ws toolbar, select Start > Run.
2.
Type ping <IP_address> where
<IP_address> is the router’s IP address. Example:
ping
192.168.10.1.
3.
Click OK.