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can't connect with dialup

Created: 27 Oct 2012 | 8 comments

Hi,

I'm looking for some trouble-shooting suggestions. Although I have no problem connecting to pcAnywhere 12.5 remotes via  IP, I am unable (except for one) to connect to them via dialup. The modems handshake, but then there's no video, and I get the dialog "The selected computer is not responding. Connection cannot be made." In each case, besides being able to connect via IP directly over the internet, I also can connect via IP if I first use dialup netorking to connect to the server (Server 2003/SP2) VPN. But I simply can't get a connection via pcAnywhere directly. The servers to which I am trying to connect are equipped with a variety of brand-name modems (3Com, USR, Zoom, Intel). All phone lines are standalone analog lines (i.e. no fax or other equipmen on those lines).

I have eliminated a line problem on my end because there is one server, equipped to the others, to which I CAN consistently connect via direct dialup.

I have checked and rechecked the settings and all remotes are set similarly.

I'll be happy to look and relook at anything anyone suggests.

GaryK

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ICHCB's picture

What build number for pcAnywhere?   12.5.?  build ????

The reason I ask is that 12.5.5 build 1086 (i think this is the build number not in font of one right now) recently had a live update for it that resolved a lot of issues and would be workth looking at.   Also make sure that hte the encryption is set to the same level on both the host and the remote.  as of 12.5.5 you have to make sure that the encryption matches or you won't be connected.

 

cheers.

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Gary Karasik's picture

Hi,

 

Thanks very much for taking the time to think about this. I'm using SP3 (12.5.1, bld 525). I believe the recent update was for SP4. On my systems, I'm not using encryption.

GaryK

ICHCB's picture

Correct on the LU it was for the SP4 or 12.5.   

I couldn't get modems to work reliabley after vista I could connect but the performance was too poor.    Win 2003 and xp was fine but later os's I could connect and some times see video for a short while and eventually it would (fall out of sync?) stop working fully and become unusable.  

 

If you do get connected and it is just a black screen or bad video, make sure the host's vide drivers are updated as far as they can be and then after that try disableing the mirror driver.  This is only helpful once the connection is made if it can't be made then it doesn't help.  

http://www.symantec.com/docs/TECH110005

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Gary Karasik's picture

Thanks to you too, ICHCB.

OSes are XP host, Server 2003 remote.

I will try disabling the mirror drivers.

GaryK

ICHCB's picture

if you are getting a failed to connect mirror driver isn't likely to improve things.  this would just change how pcAnywhere interacts with the video once you are connected.  Some systems work well with the mirror driver some really don't and then disableing it will improve performance but not connectivity.

 

Cheers.

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Gary Karasik's picture

I tried disabling the mirror drivers; it made no difference. The modems handshake, but then the "The selected computer is not responding. Connection cannot be made" dialog pops up. What I can't grasp is why I can connect fine over the internet but there should be a problem over dialup. WIth all the firewalls and other obstacles over broadband, I'd think the problem would be reversed.

TravelerJoe's picture

Has anyone gotten this to work over dial up?

ICHCB's picture

As long as the systems are using serial modems with a physical UART I can use it fine as long as the OS is pre Vista.    The video system for Vista, 7, 2k8 changed and modems are too slow.   They will connect and sort of work even if on low bandwidth mode but it isn't good.    Xp just fine.  make sure you are using a non win modem,  if it is a usb modem that is not going to work they don't have a serial UART and they emulate one but it isn't the same.

What kind of problems are you seeing Joe,

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