[Eril-l] Taylor & Francis blocking IP addresses due to excessive use

[Lynda Howell]

I was just working with a Mac user who was getting IP block messages from Wiley.  She was also unable to access EBSCOhost databases: the page continually reloaded and eventually gave some variation of "Connection was Interrupted" or "A network change was detected".  She says it'd been happening for a week or so.   As far as I know, T&F has not been a problem.

We were just investigating a possible Zotero connection when I saw your message.  Disabling Zotero or removing the configured proxy resolved the issues.  Simply unchecking Enable proxy redirection while leaving the proxy configured didn't.

This was a Mac user on Chrome/Zotero.  A Mac/Firefox/Zotero colleague hadn't seen the issue but didn't have a proxy configured.  Windows/Chrome or Firefox/Zotero with the proxy is working for me.  So we're still tracking down the actual problem here.

Lynda.

-----------------------------
Lynda Howell
Dana Medical Library
University of Vermont
https://dana.uvm.edu<https://dana.uvm.edu/>
lynda.howell at uvm.edu



From: Eril-l <eril-l-bounces at lists.eril-l.org> On Behalf Of John Kimbrough
Sent: Monday, January 23, 2023 3:56 PM
To: eril-l at lists.eril-l.org
Cc: Library Electronic Resources Help Desk <eresources at georgetown.edu>
Subject: Re: [Eril-l] Taylor & Francis blocking IP addresses due to excessive use

Georgetown (DC) has had 5 blocks from T&F in the past two weeks. One was for a variety of different articles (per Joe's email, maybe we also had a user with a quick download finger?), but the other four blocks have been the same behavior everyone else is experiencing -- lots of requests for the same/article DOI in under 60 seconds, from an on-campus IP.

We don't know anything else (yet), but are glad to hear we aren't the only ones!

John

John Kimbrough
Electronic Resources Librarian
Technical Services Department
Georgetown University Library
jwk77 at georgetown.edu<mailto:jwk77 at georgetown.edu> | eresources at georgetown.edu<mailto:eresources at georgetown.edu>

On Mon, Jan 23, 2023 at 3:46 PM Martina Anderson <martinaa at mit.edu<mailto:martinaa at mit.edu>> wrote:
We have experienced the same thing with T&F and with University of Chicago Press Journals over the last week. U of Chicago Press thinks the issue is on their end, but we and they are still trying to establish exactly the source of the issue. In the past, we’ve seen citation software causing this same issue but at least in the T&F case (where we talked with the user), that was not the case this time around.

If anyone figures out what’s going on, please share info!

--Martina

___________________________
Martina Anderson (she/her/hers)
Acquisitions & Appraisal Librarian
MIT Libraries
105 Broadway, Suite 6101
Cambridge, MA 02142
martinaa at mit.edu<mailto:martinaa at mit.edu>

From: Eril-l <eril-l-bounces at lists.eril-l.org<mailto:eril-l-bounces at lists.eril-l.org>> On Behalf Of Sara Hills
Sent: Monday, January 23, 2023 3:19 PM
To: Kenyon Stuart <kstuart at umich.edu<mailto:kstuart at umich.edu>>; eril-l at lists.eril-l.org<mailto:eril-l at lists.eril-l.org>
Subject: Re: [Eril-l] Taylor & Francis blocking IP addresses due to excessive use

Hello Kenyon -

Yes, we've experienced the same thing. We've had a number of reports of on-campus IP addresses being blocked. We're still trying to figure out what the cause was/is.

I'm happy to know we're not alone!


Sara K Hills

Electronic Resources and Serials Librarian

Interim Head of Acquisitions and Resource Management

American University, Washington DC 20016

202-885-3203

________________________________
From: Eril-l <eril-l-bounces at lists.eril-l.org<mailto:eril-l-bounces at lists.eril-l.org>> on behalf of Kenyon Stuart <kstuart at umich.edu<mailto:kstuart at umich.edu>>
Sent: Monday, January 23, 2023 2:49 PM
To: eril-l at lists.eril-l.org<mailto:eril-l at lists.eril-l.org> <eril-l at lists.eril-l.org<mailto:eril-l at lists.eril-l.org>>
Subject: [Eril-l] Taylor & Francis blocking IP addresses due to excessive use


External Email: Use caution with links and attachments.
Hello,

We received a few reports last week from Taylor & Francis that they had temporarily blocked one of our IP addresses because of excessive connection to Taylor & Francis Online (tandfonline.com<https://urldefense.com/v3/__http:/tandfonline.com__;!!IaT_gp1N!wSm7aYZLkckv-8S1C-SYwjntc5qMzp8ODu3z8wutJm7cSZGTO_AYW6G5VUdGKWibs7S8xyLzjwiA4eHfEuc$>). The activity occurs over a period of one or two minutes and involves dozens of connections to only 1 or 2 pages. The block seems to occur after 100 total connection attempts.

Our IT group investigated and suggested the activity could be due to a buggy browser. We've contacted a few users and they mentioned they were using Chrome and Zotero.

Has anyone else experienced similar issues with Taylor & Francis Online or with Chrome or Zotero? If yes, do you have any suggestions on what we can do or should investigate?

Thank you,

Kenyon Stuart
Electronic Resource Management Unit
320 Harlan Hatcher Graduate Library
University of Michigan
Ann Arbor, Michigan 48109-1190 USA
email: kstuart at umich.edu
<mailto:kstuart at umich.edu>
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