Database Users

remote desktop problem

Hi everyone,
I would like to connect to my laptop next room from local network. I can connect perfectly when I type in my IP address into the first textbox (Computer), but I can't connect when I type in my Computer Name (full computer name) instead. I tried MyPCName as Computer, \\MyPCName as Computer, forwarding port 3389 to my IP, leaving domain name empty, putting in my workgroup name as a domain, putting in my computer name as a domain, putting in myPCName\MyUserName as Username, \\MyPCName as Computer, still the same. It won't connect unless I put in the IP address. I would like to do this since my workplace assigns a different IP to my laptop then I assign at home, but naturally I have the same computer name at both places, so I would like to have a permanent setting for both places.
I'm running Windows 7 64 bit on my laptop and 1.66.405.2 ROM on my HTC HD2.
Many thanks in advance.

can you connect to it ok using another computer? might be a dns issue at a guess...

I can connect from other computers fine. Also on my HD2 I can see the host names of PC's under Resco Explorer and map them. However, remote desktop mobile refuses to work with the Computer Name. I can ping my Laptop's IP and also Computer name from pingbox2. Only in Remote Desktop Mobile there is a problem.

windows 7 by default blocks remote desktop connections from different versions of remote desktop. if you right click computer and select properties, then choose remote settings on the right hand side and select the middle option (accept connections from all verions of remote desktop). havent tried this my self but it solves most issues when using different versions of windows

OK, I sort of figured it but would still appreciate some help. Here is how I got it to work:
I had OpenDNS IP under DNS settings for wireless adapter. I deleted them. If I don't do this, pinging my computer name from HD2 always brings 67.215.65.132, which is opendns and not my true local IP, i.e. 192.168.x.x. I also had to disable the data connection (3G) and only have wireless. If I don't disable 3G, I can only connect with IP and not computer name. Only after doing these 2, when I pinged my computer name, I got the true local IP and I was able to connect with Remote Desktop Mobile using computer name. Now my question is:
1- I don't want to quit using opendns, is it possible?
2- I don't want to disable 3G connection every time, is it possible?
thanks in advance.

For me it works with MyPCName in computer and empty domain, both for XP and 7.

Something seems strange with your phone's networking configuration. At a guess (and this is a long shot), I would check your VPN settings on your phone to make sure you're not connecting to a different domain over 3G as this might explain why it works when you turn off the data connection on the phone and why it works by IP address.
As I said though, it's a long shot and is the only thing I could think of that fits your particular symptoms...

ozkaya said:
OK, I sort of figured it but would still appreciate some help. Here is how I got it to work:
I had OpenDNS IP under DNS settings for wireless adapter. I deleted them. If I don't do this, pinging my computer name from HD2 always brings 67.215.65.132, which is opendns and not my true local IP, i.e. 192.168.x.x. I also had to disable the data connection (3G) and only have wireless. Only after doing these 2, when I pinged my computer name, I got the true local IP and I was able to connect with Remote Desktop Mobile using computer name. Now my question is:
1- I don't want to quit using opendns, is it possible?
2- I don't want to disable 3G connection every time, is it possible?
thanks in advance.
Click to expand...
Click to collapse
about the open dns issues, I suspect that can be solved by making sure your router lets the incoming connection into your home network (you say it resolves to 66.whatever when open dns is used, shouldn't be a problem do long as you don't forget that will be your home ip address so that connection will neef to be allowed through the router and then forwarded by your routers virtual server (our whatever your router software calls out) to your laptops internal ip address.
as for the 3g it should use wifi over 3g by default..... mine certainly does, no need for me to disable it.

tomallen35 said:
Something seems strange with your phone's networking configuration. At a guess (and this is a long shot), I would check your VPN settings on your phone to make sure you're not connecting to a different domain over 3G as this might explain why it works when you turn off the data connection on the phone and why it works by IP address.
As I said though, it's a long shot and is the only thing I could think of that fits your particular symptoms...
Click to expand...
Click to collapse
I think you're right, when the 3G is on (and also Wifi on), Resco shows computers from all around the country when I click computers near me and not my local network. When only wifi is on I can see my local computers. 3G probably has precedence over Wifi? How can I correct this?

samsamuel said:
about the open dns issues, I suspect that can be solved by making sure your router lets the incoming connection into your home network (you say it resolves to 66.whatever when open dns is used, shouldn't be a problem do long as you don't forget that will be your home ip address so that connection will neef to be allowed through the router and then forwarded by your routers virtual server (our whatever your router software calls out) to your laptops internal ip address.
as for the 3g it should use wifi over 3g by default..... mine certainly does, no need for me to disable it.
Click to expand...
Click to collapse
But the 66.whatever address is generic openDNS lookup IP and same for everyone. Are you suggesting me to route this IP to my local IP, i.e. 192.168.x.x? Oh, one more thing, I can also connect when 3g and wifi are both on, but only through computer's IP and not computer name. Can you connect with computer name while both are on and connected?

when your phone does a dns lookup on the name it resolves to the open dns assigned address (not the same for everyone, otherwise the open fns system wouldn't work) so to connect to your computer the phone sends its request to open dns who forward that request to your current actual address.at home that address is your home ip address BUT it isn't your laptops address it is your routers address.(stop reading here if you don't have a router).
so the router needs to be told "if you get a connection request in port (whatever the remote desktop port is) please forward it to (laptop ip address)
its called port forwarding in some routers, virtual server in others.

samsamuel said:
so the router needs to be told "if you get a connection request in port (whatever the remote desktop port is) please forward it to (laptop ip address)
its called port forwarding in some routers, virtual server in others.
Click to expand...
Click to collapse
You're mixing up things a bit - he's not using dns but the computer netbios name. The point is that he has wifi on and connected as well as 3G, thus with an "intranet" ip address on Wifi... so the program/phone should be looking up the name on that connection, where it would find it, instead of looking up over the 3G connection. As the netbios protocol is not routable, it has no chance of finding the computer name over 3G/internet and back home, even with port mappings.

kilrah said:
You're mixing up things a bit - he's not using dns but the computer netbios name. The point is that he has wifi on and connected as well as 3G, thus with an "intranet" ip address on Wifi... so the program/phone should be looking up the name on that connection, where it would find it, instead of looking up over the 3G connection. As the netbios protocol is not routable, it has no chance of finding the computer name over 3G/internet and back home, even with port mappings.
Click to expand...
Click to collapse
you're totally right, I have a router and its port is forwarded to my laptop IP, but this is only good (and works well too) when I want to connect from Internet to my local network. I tried OpenDNS exceptions for VPN and defined an exception named as MyComputerName but it didn't work. Then I tried a dyndns solution, but it only works for external connections and not local network, i.e. it can't map local IP's. What I need is a dynamic client which can update my local IP.
I also tried to edit hosts entry in the registry with MyComputerName. It works for a single IP, but I'm not sure if I can write multiple IP adresses (my work and home local IP) into that. If I could maybe everything would be OK.

I've just tried a couple of things and it really works fine for me. If I connect Wifi only, I can remote desktop with the computer name. If I then connect data connection, it still works. Disabling wifi and obviously it doesn't work anymore. Re enabling wifi, it doesn't work at first, but does again after ~30 seconds once the netbios protocol has done its host lookup procedures.
There simply shouldn't be anything special to do.

kilrah said:
I've just tried a couple of things and it really works fine for me. If I connect Wifi only, I can remote desktop with the computer name. If I then connect data connection, it still works. Disabling wifi and obviously it doesn't work anymore. Re enabling wifi, it doesn't work at first, but does again after ~30 seconds once the netbios protocol has done its host lookup procedures.
There simply shouldn't be anything special to do.
Click to expand...
Click to collapse
thank you very much for your time, I appreciate it. You're right in that waiting a bit resolves the issue (it's a bit more than 30 secs for me that's why I thought it wasn't working when 3G is enabled) but only when OpenDNS is not used. I assume you don't use OpenDNS, right? Once I put that one into equation, it takes over NetBIOS protocol and returns its IP instead of the local IP(192.168.x.x). As far as I understand, DNS lookup has precedence over NETBIOS and if the name is not found in DNS it consults NETBIOS protocol. However OpenDNS has this nice "feature" where it finds the name with its own IP. There are several posts about this on its webpage and they say to either disable the typo correction or put exceptions for Netbios names, but sadly none of them works for me right now.

Nope, no OpenDNS, never actually heard of it.
How does it work? Do you enter their DNS server address in the network settings of your pc/phone, or is it an app you run?

you click Start/Settings/All Settings/Connections/Wifi/First Button/Switch to Network Adapters tab/Select Broadcom 802.11 DHD Network Adapter/Switch to Name Servers Tab/Type in 208.67.222.222 for primary DNS and 208.67.220.220 for secondary DNS, click OK. that's all. Could you try if it's not so much trouble? Thanks.

OK, remote desktop doesn't work either with the OpenDNS servers in.
I'm pretty sure it must be a limitation of the remote desktop app itself, as resco explorer can still navigate and/or discover the network shares of my other PCs with no problem. NBTStatCE also finds everybody.
Wouldn't even surprise me, as that Remote desktop mobile has always been troublesome. I don't remember exactly, but in the WM5 days it was pretty much impossible to use on a local network due to a weird handling of names... if I remember well all "local" (NetBIOS) addresses without a '.' entered in the remote desktop app would be redirected to the "Work" connection, while "remote" ones with a period would be directed on the "Internet" connection. As a network card can only be defined as one of them, if you wanted it to work in both cases through Wifi you had to switch the card from Work to Internet and back all the time. And of course when it's on Work it breaks some other things that use the default system handling like mail.

Wi-Fi router

All
I have my htc setup to both internet sharing and Wi-Fi connection on my work PC with a lan connection. On both of these connections e.g. wired USB and wireless i can get the internet for about 3 minutes then it stops working. Is there some sort of block? I did see a while back that the WiFi app has no restrictions...
Any help would be superb.
Cheers
Baker0

Thats a little odd, there is certainly no block and I have had the wifi router running for a good 30-40 minutes without failing.
what part is failing, is the phone no longer running the wifi router, or is the pc no longer getting internet on that network connection?
If you need help on how to find this info just reply and I can walk you through some more diagnostic steps.

The phone is still running just the internet stops on the machine. I have to stop the wi fi on the phone then start again then connect. I think it might be t-mobile but the internet on the phone is fine

are you in the uk?
if you connect your laptop to the phone via the wifi router you should be able to right click the network logo, click on status and view the wifi network info, it should tell you in there if it has internet access on that network connection.
If you try this again and when it fails check this status window and see if windows is seeing an internet connection or not?
when the net fails again try and visit http://72.14.203.100/ (this should be the google homepage) if you see google then there is a dns problem if it still says network timeout or failed to connect or something like that then we will have to dig further.

LOL thanks for your help. I am in the UK. ive been working in IT for the last 12 years and I know and have done the test, its not the machine it has something to do with the phone or t-mobile network

Sorry to hijack your thread a little, but I'm on the T-Mobile Network in the UK too (except I'm using a Touch Pro with a custom ROM), and although I can make connections from the PC to websites using the IP address, the DNS isn't working so I can't resolve domain names.
Any ideas?
Cheers,
Steve.

Baker0 said:
LOL thanks for your help. I am in the UK. ive been working in IT for the last 12 years and I know and have done the test, its not the machine it has something to do with the phone or t-mobile network
Click to expand...
Click to collapse
It must be the phone then since I do use wifi router, I am on t-mobile and in the UK and I do not experience this :S
I seem to be saying this more and more but maybe you should try a hard reset and see if that fixes the problem?

StevePritchard said:
Sorry to hijack your thread a little, but I'm on the T-Mobile Network in the UK too (except I'm using a Touch Pro with a custom ROM), and although I can make connections from the PC to websites using the IP address, the DNS isn't working so I can't resolve domain names.
Any ideas?
Cheers,
Steve.
Click to expand...
Click to collapse
This is likely an issue with the way your machine has been setup to connect to the wifi network. Try visting the properties of the network and vieing the dns settings for the tcp/ipv4, It should be set as Obtain DNS server addresses automatically. If it is set like this then try setting it too 8.8.8.8 and 8.8.4.4 these are googles, dns servers if this works for you then you could stick with this or do some further digging as to why you are not getting the dns server addresses automatically like you should be.

Xp3RiM3nT said:
This is likely an issue with the way your machine has been setup to connect to the wifi network. Try visting the properties of the network and vieing the dns settings for the tcp/ipv4, It should be set as Obtain DNS server addresses automatically. If it is set like this then try setting it too 8.8.8.8 and 8.8.4.4 these are googles, dns servers if this works for you then you could stick with this or do some further digging as to why you are not getting the dns server addresses automatically like you should be.
Click to expand...
Click to collapse
Setting the DNS entries to Google's makes it work, but attempting to get the DNS Server's automatically leaves me with no ability to resolve domain names. How strange?
Thanks for the workaround, not sure where to start looking to fix it properly.
Cheers,
Steve.

Hey guys,
I am new to this wifi router thing and got the following questions:
1. To be able to use it, you must have data connection with your provider. Am I right?
2. By any chance, can I use this system by using a sim taken out of a prepaid mobile broadband dongle and inserted into my device (htc touch HD)?
3. Once I get connected can I surf the internet/check emails etc from within the device itself without the need to use a laptop?
Please don't mind these basic stupid questions.
cheers

Cant' access youtube, android market, and other google services...

on WiFi...
This happens on my Thunderbolt, Transformer, and on my wife's iPhone. Stock roms and custom roms, it doesn't matter. Once I put the device back on the cellular network (I tether the Transformer)the services are able to connect. This issue occurs in the official Google apps as well as the web browser.
My home network is powered by a D-Link DIR 825, DNS points to the router @192.168.0.1
The router is able to resolve youtube.com and other google services.
Windows PC's are able to access affected services.
For some reason when I'm on my Android devices they don't play well on my WiFi network. I had the same issue occur with my MBP 2011 model. My solution was to force google dns server.
Unfortunately my D-Link doesn't give me the option to manually configure the DNS server being sent through DHCP. So I can't force just the DNS server on the Android / iOS devices. Any idea's or thoughts on what's going on?
Again, I can ping youtube.com from the router and below is more info on my ISP.
Telemedia Solutions hosted by Washington County Rural Telecommunications
DSL Service
6Mbps down 768k up
Located in Southern Indiana
Again, once devices are moved to the mobile network I have no issues. WiFi at my work works just fine during the day for my Android devices. I have cleared data / cache for the browser and youtube apps in Android.
Any thought's or suggestions?

You say the devices work fine at work, di you have to set a static IP address for them at work?
If yes, then have you made sure to switch back to DHCP when you are at work? (assuming your home network runs DHCP?)

bringonblink said:
You say the devices work fine at work, di you have to set a static IP address for them at work?
If yes, then have you made sure to switch back to DHCP when you are at work? (assuming your home network runs DHCP?)
Click to expand...
Click to collapse
No, I dont run static IP's at work.
I'm the network administrator and manage the wireless network at work so thankfully I have control over the design and layout of our wireless networks.
The network consists of Cisco serise WLC 5500 with Cisco 1141 AP's. The wireless network is a WPA2 Enterprise network.
DNS is handled by our AD server.
I almost questioned my home ISP DNS but if the router can resolve the IP then it should be able to resolve for any host requesting that information. I'm wondering if these Unix like devices (Android, iOS, OS X) are trying to resolve or handle the resolution process differently.
Again, Windows resolves the domain just fine. I may check configurations files to see the order of name resolution.

michaelkahl said:
No, I dont run static IP's at work.
I'm the network administrator and manage the wireless network at work so thankfully I have control over the design and layout of our wireless networks.
The network consists of Cisco serise WLC 5500 with Cisco 1141 AP's. The wireless network is a WPA2 Enterprise network.
DNS is handled by our AD server.
I almost questioned my home ISP DNS but if the router can resolve the IP then it should be able to resolve for any host requesting that information. I'm wondering if these Unix like devices (Android, iOS, OS X) are trying to resolve or handle the resolution process differently.
Again, Windows resolves the domain just fine. I may check configurations files to see the order of name resolution.
Click to expand...
Click to collapse
Your router is using your isp dns primary and secondary?
Sent from my Nexus S using XDA Premium App

bringonblink said:
Your router is using your isp dns primary and secondary?
Sent from my Nexus S using XDA Premium App
Click to expand...
Click to collapse
Secondary
Sent from my Transformer TF101 using XDA Premium App

To clarify.
Router IP on my end 192.168.100.64
ISP DSL modem is 192.168.100.1(primary dns)
ISP dns is 137.118.1.33(secondary dns for router)
Sent from my Transformer TF101 using XDA Premium App

I ran a packet capture from the tablet and every time it tries to resolve the name the tablet receives a Reset response.
54 Domain [RST, ACK]

I'm even more pissed...aparently I can resolve the name if I do a ping youtube.com in the terminal emulator. I can't access the app or website however...but it works on PC's.
I'm wondering if it's outdated firmware on my router. Unfortunately this piece of $hi7 D-Link refuses to accept the upgraded firmware.

Performed a factory reset on the router.
Setup a quick and dirty wireless network and still couldn't access google services from it.
I attempted to upgrade the firmware again with the system freshly reset and it was still a no go. I'm thinking of ditching this POS router.

This may be a long shot but can you try setting your router ip as 192 168 0 1, then your phone as 192 168 0 2. Mine had troubles on higher ip ranges
Sent from my Nexus S

I did a packet capture from the phone and tablet and this is what I see.
Packet 15 - DNS query for youtube.com
Packet 16 - DNS response with the IP address
Packet 17 - A TCP Packet is sent to the router on port 53
Packet 18 - A TCP Packet is received with the [RST, ACK] flag set.
Then I see this pattern as I was hitting refresh over and over. The connection is getting reset for some reason.
Reading D-Link forums it appears that some people have issues with this router "blocking" some websites. I think it's simply an issue of $hi77y firmware and unfortunately I can't upgrade it. I've verified my downloads, followed the directions to the T, but it will not accept the firmware.

Well I upgraded to a Linksys E2000 with DD-WRT firmware and everything works fine
Sent from my Transformer TF101 using XDA Premium App

connection problem
Hi!
I have a problem with mobile internet connection I am living in london i have o2 SIMcard top up not contract. if i try to use goggle map or internet browser during walking on the street or wherever there is no WIFI it shuld be connect by o2 internet. I have the all rounder bolt on wich includes 500MB data traffic per month. I have been at the o2 branch they have checked my balance is all right. Anyway if i try to connect i have got message: „Network failure This application requires a working data connection.” They have trying with an other o2 SIM card it was working fine so they was changing my SIM card to a brand new but i have the same problem still. I was trying every settings on my phone i have HD2_NDT_MIUI_DEVELOPMENT_V19.1_Multilang_MAGLDR on there.
My phone is an HTC HD2 factory unlocked
Any helps are welcome

[Q] Wifi issue. New findings?

Hello, been a long time reader from my G1 to my G2 and now my nexus 4.
I am unfortunately not able to use my device on certain wifi networks which is a real bummer.
Being that i have a background in diagnosing computer problems in my real world life, i thought i would post my findings as i found some interesting things!
First i will say that the network i will use as the demonstration is secured with WPA2 PSK AES security and encryption.
I can connect to it and often find i have problems on the first connect to the network. By this i mean if i have made my wifi settings 'forget the network' and then try to connect again.
On the first time it seems to indefinitely hang, showing the message 'authenticating' on screen next to the network and if i long press on the network name and press modify, the dialog shows that i have a link speed of 1mbps.
I can usually get past this by turning wifi off and on and then reconnecting, at which point it will connect straight away and have a normal link speed. (in this example 72mbps).
After i am connected, i find that the following does not load:
-browsing webpages through chrome does not load
-the wifi icon turns grey
-play store cannot load anything
I find that i get assigned an ip address by dhcp correctly too with the right gateway and dns.
I decided to download a network tool to have a better look. I use fing personally.
I found it very interesting what i found, which no other threads about wifi issues mention.
Network discovery found every device on the local wifi network.
I was able to scan the services of my computer which is also on the network and it found everything, including a http server which i run which i could browse to.
In fact i could do everything through wifi with this device and most others.
Again it got interesting when I then took a look at my gateway, the router.
I had discovered its mac address which i can verify through my computer is correct which to my understanding, being that i can communicate through the wifi, means that i have the information available to send information to that physical device?
When trying to scan services, i find nothing, which is not true, at the very least it exposes a http server on port 80 which my computer can access.
When trying to ping i have 100% packet loss.
So at this point it is only the gateway i cannot access.
So i figure i could setup another computer which is connected to the network with a wire to share its connection through wifi onto that network and then i have a standin gateway?
I connected this computer through wifi to the network and pinged it succesfully with my phone. I then turn ICS on my wired adaptor to share to my wifi adaptor. I ensure that the wifi maintains an ip address in the right range and subnet.
I then try to ping that ip with the phone and it then gets 100% packet loss.
Could this be that when a device is configured to act as a gateway something changes about how it handles any packets sent to it that the nexus 4 is currently in compatible with?

elltg said:
So at this point it is only the gateway i cannot access.
So i figure i could setup another computer which is connected to the network with a wire to share its connection through wifi onto that network and then i have a standin gateway?
I connected this computer through wifi to the network and pinged it succesfully with my phone. I then turn ICS on my wired adaptor to share to my wifi adaptor. I ensure that the wifi maintains an ip address in the right range and subnet.
I then try to ping that ip with the phone and it then gets 100% packet loss.
Could this be that when a device is configured to act as a gateway something changes about how it handles any packets sent to it that the nexus 4 is currently in compatible with?
Click to expand...
Click to collapse
I have found a bit of a workaround that i can use!
When i said i turned on the wifi and ICS i did the following:
-Turned on wifi.
-Connected to wifi network.
-Turned on ICS on my wired network to share to my wifi
-Observed that my ip changed from 192.168.10.x to 192.168.137.1 with no gateway or dns.
-I decided to change my ip on the wireless to 192.168.10.x and gateway to my router 192.168.10.10
-I then tested.
I ran through this again but slightly different:
-Turned on wifi.
-Connected to wifi network.
-Turned on ICS on my wired network to share to my wifi
-Observed that my ip changed from 192.168.10.x to 192.168.137.1 with no gateway or dns.
-I decided to change my ip on the phone to 192.168.137.5 with gateway and dns as 192.168.137.1
-I then tested. And it works!
I know this doesnt fix the wifi issue itself, but for me, this makes a big difference as i can now use wifi at work where we also have poor mobile network coverage.
Edit:
Additionally i previously tried to setup this same computer to host a wifi network to share the connection using 'netsh' and creating a 'hostednetwork' but i found i was in the same situation where i still couldnt get the internet.

Connects to local wi-fi, but can't connect to the internet.

Hi
I am having a problem connecting to the internet through my home Wi-Fi network on a Tab A (SM-T350). It connects to the WiFi network just fine. I can control my Harmony TV remote from the Tab A so I know it is solidly on the net. It shows up as a connected device on the router. When I try for any internet connection I get a "Server not found" message. The weird thing is it has connected to the Yahoo home page twice but I could not go anywhere from there. When I got out of the browser I was not able to reconnect. It won't sync Email either. I am using several browsers and get the same behavior all of them. No other devices are having any problem with the WiFi network, just the Tab A.
Any ideas? A web search talked about similar problems on some devices a couple of years ago. It had do with the date on the tablet being reset and some sort of sync issue. This is not the problem here.
Thanks
John

OldTacoman said:
Hi
I am having a problem connecting to the internet through my home Wi-Fi network on a Tab A (SM-T350). It connects to the WiFi network just fine. I can control my Harmony TV remote from the Tab A so I know it is solidly on the net. It shows up as a connected device on the router. When I try for any internet connection I get a "Server not found" message. The weird thing is it has connected to the Yahoo home page twice but I could not go anywhere from there. When I got out of the browser I was not able to reconnect. It won't sync Email either. I am using several browsers and get the same behavior all of them. No other devices are having any problem with the WiFi network, just the Tab A.
Any ideas? A web search talked about similar problems on some devices a couple of years ago. It had do with the date on the tablet being reset and some sort of sync issue. This is not the problem here.
Thanks
John
Click to expand...
Click to collapse
could be something wrong with your DNS

I guess you mean the Domain Name Service on the router? I can get internet access using the same router on different devices. What did you have in mind.

OldTacoman said:
I guess you mean the Domain Name Service on the router? I can get internet access using the same router on different devices. What did you have in mind.
Click to expand...
Click to collapse
maybe your device isn't picking it up for some reason. you can try manually setting the DNS to 8.8.8.8 in the advanced network settings and see if it fixes it.

I tried your suggestion. It was set DHCP, I went to static, and set the DNS to 8.8.8.8 and it did not help. I did notice that when I first try to bring up a web page after connecting to the WiFi network it will bring up the current page once. None of the links will work. Also if I shut down the browser and try to re-open that same web page it will not connect.
Anyway, thanks for the idea. If you can thing of anything else let me know.
John

I figured it out. I went onto the router it showed a device with the correct tablet MAC address was attached. It showed the MAC address was bound to a device with an IP address that did not match the IP address the tablet was trying to talk to. I don't know how that happened, but it did. Anyway I went onto the tablet, forced a static IP and made it match the one on the router.