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Welcome!What Hardware version is your router? Look at sticker under router.
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Firmware version is currently loaded? Found on routers web page under status.
What region are you located?
Are you wired or wireless connected to the router?
It's not recommended to release and renew WAN IP addresses unless the ISP is having issues or needs to trouble shoot. Usually powering down the ISP Modem and router, then power ON ISP Modem then router should produce an WAN IP address successfully. If it's not doing it if you release on the 826, it maybe due to the fact that the ISP or ISP Modem has already leased out the current IP address and will not change to a different one until the lease time has expired.
If your running into slow downs, then there could be a different problem else where. Line single is very important on cable. Make sure it's a ISP specified levels. Make sure there isn't any TV line splitters on the line before the ISP Modem. These tent to lower the signal level. If a splitter is needed, use 1 good quality one.
What ISP Modem do you have? Stand Alone or built in router?
What ISP Modem make and model do you have?
If this modem has a built in router, it's best to bridge the modem. Having 2 routers on the same line can cause connection problems.
Double NATTo tell if the modem is bridged or not, look at the routers web page, Status/Device Info/Wan Section, if there is a 192.168.0.# address in the WAN IP address field, then the modem is not bridged.
If the modem can't be bridged then see if the modem has a DMZ option and input the IP address the router gets from the modem and put that into the modems DMZ.
Some things to try: - Log into the routers web page at 192.168.0.1.
Setup DHCP reserved IP addresses for all devices ON the router. Setup/Networking
Ensure devices are set to auto obtain an IP address.
Set Firewall settings to Endpoint Independent for TCP and UDP under Advanced/Firewall.
Enable uPnP and Multi-cast Streaming under Advanced/Networking.Turn off all anti virus and firewall programs on PC while testing. 3rd party firewalls are not generally needed when using routers as they are effective on blocking malicious inbound traffic.
Turn off all devices accept for one wired PC while testing.
Check cable between Modem and Router, swap out to be sure. Link>
Cat6 is recommended.