I'll keep this top level and to the point.....

PROBLEM:- Internal DNS not working for anything WIFI

FURTHER DETAIL:- Can resolve any internal DNS via LAN but NOT via WIFI

BACKGROUND:- Draytek 2860, Virgin SH3 Modem Mode, DNS and DHCP handled by 2860. Use reserve entries in DHCP with network name against comment. WIFI is UNIFI AC-Pro and couple of AC-Lite.

assume your wifi clients are DHCP? If so what DNS server IP(s) are being pushed out? Does at least one of them match that of the 2860?

Hi,

WIFI is DHCP allocated by the router, DNS is router IP - 192.168.0.254

are wired and wireless on the same vlan?

if on a wifi client you open a command prompt/shell and issue an ipconfig /all what do you see back for your wifi interface? In my case, I have configured my 2925 to pass out 8.8.8.8 and 8.8.4.4 to clients via DHCP.

Code:

Ethernet adapter Ethernet: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) Ethernet Connection (2) I218-V Physical Address. . . . . . . . . : 78-24-AF-8C-16-BD DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::a005:3f0a:4096:690f%2(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.100.101(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : 03 September 2017 14:25:26 Lease Expires . . . . . . . . . . : 07 September 2017 13:55:45 Default Gateway . . . . . . . . . : 192.168.100.254 DHCP Server . . . . . . . . . . . : 192.168.100.254 DHCPv6 IAID . . . . . . . . . . . : 41428143 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-20-BD-D9-86-78-24-AF-8C-16-BD DNS Servers . . . . . . . . . . . : 8.8.8.8 8.8.4.4 NetBIOS over Tcpip. . . . . . . . : Enabled

Staying in the command prompt, if you issue the command: nslookup http://www.bbc.co.uk what happens?

Code:

C:\Users\matth>nslookup www.bbc.co.uk Server: google-public-dns-a.google.com Address: 8.8.8.8 Non-authoritative answer: Name: www.bbc.net.uk Addresses: 212.58.246.90 212.58.244.66 Aliases: www.bbc.co.uk

Finally can the wireless clients connect to the internet sans DNS, if you browse to http://212.58.244.66/ do you get the BBC 404 page, or page can 't be displayed type of error?

Hi,

Wireless LAN adapter WiFi:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) Dual Band Wireless-AC 7265
Physical Address. . . . . . . . . : 4C-80-93-AC-C3-F3
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::c8a0:b614:6550:ffda%16(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.29(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 05 September 2017 14:24:23
Lease Expires . . . . . . . . . . : 07 September 2017 20:17:20
Default Gateway . . . . . . . . . : 192.168.0.254
DHCP Server . . . . . . . . . . . : 192.168.0.254
DHCPv6 IAID . . . . . . . . . . . : 122454163
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-20-56-3D-CD-40-B0-34-53-9D-48
DNS Servers . . . . . . . . . . . : 192.168.0.254
NetBIOS over Tcpip. . . . . . . . : Enabled

nslookup comes up wit 192.168.0.254 (router IP)
I can query dns for anything externally also internally for NAS
I cannot ping nas though.

I can talk to external address for NAS internally

http://212.58.244.66/ resolves to standard bbc 404

Well that is a tad strange, everything looks to be in order. I does a ping or tracert to www.bbc.co.uk work?

Can you confirm that all windows based internet applications don't work? ie. IE, Chrome, FileZilla, etc, and that it is across a variety of wifi devices - laptops, tablets, phones, etc.